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GeoRef Subject
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all geography including DSDP/ODP Sites and Legs
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Africa
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East Africa
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Kenya (1)
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Tanzania (3)
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Limpopo Belt (1)
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Madagascar (2)
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North Africa
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Morocco (1)
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Tunisia (1)
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Southern Africa
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Namaqualand metamorphic complex (1)
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South Africa (2)
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Antarctica
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East Antarctica (1)
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Queen Maud Land
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Sor-Rondane Mountains (1)
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Arctic region
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Greenland
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Godthabsfjord (1)
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West Greenland (1)
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Asia
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Chukotka Russian Federation
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Far East
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China
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India
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Kamchatka Russian Federation
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Ontario
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Nunavut
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Commonwealth of Independent States
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Kamchatka Russian Federation
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Kamchatka Peninsula
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Tolbachik (1)
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Russian Far East (1)
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Yakutia Russian Federation (1)
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Europe
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Alps
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Central Europe
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Austria
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Bohemian Massif (1)
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Pyrenees
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French Pyrenees (1)
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Southern Europe
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Greece
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Greek Aegean Islands
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Cyclades
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Naxos (1)
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Greek Thrace
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Rhodope Greece (1)
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Slovenia (2)
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Thrace
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Greek Thrace
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Western Europe
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France
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Scandinavia
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Norway
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Seiland (1)
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Southern Norway (1)
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Telemark Norway
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Indian Ocean Islands
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Madagascar (2)
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Mediterranean region
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Cyclades
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Mediterranean Sea
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West Mediterranean
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Mexico
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North America
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Appalachians
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Canadian Shield
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Raleigh Belt (1)
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Red River (1)
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South America
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Brazil
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United States
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Charlotte Belt (1)
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Connecticut (2)
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Georgia
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Idaho
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Valley County Idaho (1)
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Maine (2)
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Massachusetts (1)
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commodities
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gems (29)
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chromite ores (2)
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cobalt ores (1)
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mineral exploration (1)
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ruby (23)
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elements, isotopes
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boron
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B-11/B-10 (1)
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chemical elements (1)
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chemical ratios (1)
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fluorine (1)
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hydrogen (7)
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isotope ratios (8)
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isotopes
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stable isotopes
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O-18/O-16 (7)
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metals
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actinides
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cesium (1)
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lithium (2)
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potassium (2)
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alkaline earth metals
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calcium (1)
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magnesium (3)
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aluminum (6)
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chromium (15)
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cobalt (1)
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copper (2)
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gallium (1)
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iron
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ferric iron (2)
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ferrous iron (2)
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manganese (1)
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nickel (1)
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platinum group
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iridium (1)
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rare earths (3)
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titanium (2)
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vanadium (2)
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zinc (1)
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oxygen
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O-18/O-16 (7)
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-
-
geochronology methods
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Ar/Ar (1)
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U/Pb (5)
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-
geologic age
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Cenozoic
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Quaternary (1)
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Tertiary
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Neogene (1)
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Paleogene
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Oligocene (1)
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-
-
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Mesozoic
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Cretaceous
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Upper Cretaceous (1)
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Triassic
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Upper Triassic (1)
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-
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Moldanubian (2)
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Paleozoic
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Cambrian
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Lower Cambrian (1)
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lower Paleozoic (2)
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Permian (2)
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Phanerozoic (1)
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Precambrian
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Archean (1)
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upper Precambrian
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Proterozoic
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Paleoproterozoic
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Siderian (1)
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-
-
-
-
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igneous rocks
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igneous rocks
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kimberlite (1)
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plutonic rocks
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anorthosite (5)
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diorites
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tonalite (1)
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trondhjemite (1)
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gabbros
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norite (1)
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granites
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charnockite (1)
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leucogranite (1)
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S-type granites (1)
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pegmatite (7)
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syenites
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albitite (2)
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ultramafics
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chromitite (4)
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peridotites
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dunite (3)
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harzburgite (4)
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lherzolite (2)
-
-
pyroxenite
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orthopyroxenite (1)
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-
-
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porphyry (1)
-
volcanic rocks
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basalts
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alkali basalts (4)
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dacites (1)
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glasses (1)
-
pyroclastics
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tuff (1)
-
-
-
-
ophiolite (3)
-
-
metamorphic rocks
-
metamorphic rocks
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amphibolites (3)
-
eclogite (4)
-
gneisses
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granite gneiss (1)
-
-
granulites (9)
-
hornfels (1)
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lapis lazuli (1)
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marbles (7)
-
metacarbonate rocks (1)
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metaigneous rocks (2)
-
metasedimentary rocks
-
metapelite (3)
-
-
metasomatic rocks
-
skarn (1)
-
-
metavolcanic rocks (1)
-
migmatites
-
anatexite (1)
-
-
phyllites (1)
-
schists
-
chlorite schist (1)
-
greenschist (1)
-
-
-
ophiolite (3)
-
-
meteorites
-
meteorites
-
Northwest Africa Meteorites (1)
-
stony meteorites
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achondrites
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eucrite (1)
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Martian meteorites (1)
-
-
chondrites (1)
-
-
-
-
minerals
-
alloys
-
carbides
-
moissanite (5)
-
-
kamacite (1)
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nitrides (4)
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phosphides (1)
-
silicides (2)
-
-
carbonates
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calcite (1)
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cancrinite (1)
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dolomite (1)
-
-
halides
-
chlorides
-
halite (1)
-
-
fluorides
-
clinohumite (1)
-
humite (1)
-
topaz (2)
-
-
-
hydrates (1)
-
minerals (19)
-
native elements
-
diamond (3)
-
graphite (1)
-
-
oxides
-
aluminum oxides (9)
-
baddeleyite (2)
-
bayerite (1)
-
boehmite (5)
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brucite (1)
-
chrome spinel (2)
-
chromite (1)
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corundum (156)
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diaspore (9)
-
gahnite (2)
-
gibbsite (6)
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goethite (2)
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hematite (5)
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hercynite (7)
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hibonite (3)
-
hoegbomite (3)
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hydroxides (2)
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ilmenite (10)
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iron oxides (3)
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magnesioferrite (1)
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magnetite (6)
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niobates
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aeschynite (1)
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columbite (2)
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fergusonite (1)
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pyrochlore (1)
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samarskite (1)
-
-
periclase (3)
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perovskite (3)
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rutile (11)
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sapphire (22)
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spinel (25)
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spinel group (3)
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titanium oxides (3)
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titanomagnetite (1)
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uraninite (1)
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wustite (2)
-
-
phosphates
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apatite (2)
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chlorapatite (1)
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lazulite (1)
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monazite (1)
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xenotime (1)
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silicates
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aluminosilicates (2)
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borosilicates (1)
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chain silicates
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aenigmatite group
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sapphirine (8)
-
-
amphibole group
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clinoamphibole
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hornblende (2)
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kaersutite (1)
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pargasite (4)
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tschermakite (1)
-
-
orthoamphibole
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gedrite (1)
-
-
-
prehnite (1)
-
pyroxene group
-
clinopyroxene
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diopside (3)
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fassaite (1)
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jadeite (1)
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spodumene (1)
-
-
orthopyroxene
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enstatite (1)
-
-
-
wollastonite group
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wollastonite (1)
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-
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framework silicates
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cancrinite (1)
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feldspar group
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alkali feldspar
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K-feldspar (2)
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microcline (1)
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orthoclase (1)
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perthite (1)
-
sanidine (2)
-
-
plagioclase
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albite (4)
-
anorthite (7)
-
-
-
nepheline group
-
nepheline (4)
-
-
scapolite group
-
scapolite (3)
-
-
silica minerals
-
amethyst (1)
-
coesite (3)
-
cristobalite (1)
-
quartz (22)
-
stishovite (4)
-
-
sodalite group
-
hydrosodalite (1)
-
lazurite (1)
-
sodalite (2)
-
-
zeolite group
-
analcime (1)
-
clinoptilolite (1)
-
mordenite (1)
-
-
-
orthosilicates
-
nesosilicates
-
andalusite (5)
-
clinohumite (1)
-
dumortierite (1)
-
garnet group
-
almandine (1)
-
grossular (4)
-
pyrope (2)
-
-
grandidierite (1)
-
humite (1)
-
kyanite (13)
-
mullite (4)
-
olivine group
-
fayalite (1)
-
forsterite (5)
-
olivine (6)
-
ringwoodite (2)
-
wadsleyite (2)
-
-
sillimanite (7)
-
staurolite (5)
-
titanite group
-
titanite (1)
-
-
topaz (2)
-
zircon group
-
thorite (2)
-
zircon (13)
-
-
-
sorosilicates
-
epidote group
-
clinozoisite (2)
-
epidote (2)
-
zoisite (1)
-
-
lawsonite (2)
-
melilite group
-
gehlenite (1)
-
-
-
-
ring silicates
-
beryl (2)
-
cordierite (3)
-
emerald (1)
-
tourmaline group
-
dravite (1)
-
uvite (1)
-
-
-
sheet silicates
-
chlorite group
-
chlorite (4)
-
clinochlore (1)
-
-
clay minerals
-
kaolinite (1)
-
-
cymrite (1)
-
margarite (5)
-
mica group
-
biotite (8)
-
muscovite (7)
-
phlogopite (3)
-
-
pyrophyllite (2)
-
serpentine group
-
serpentine (1)
-
-
talc (1)
-
-
-
sulfates
-
bassanite (1)
-
lazurite (1)
-
-
sulfides
-
chalcopyrite (1)
-
galena (1)
-
lazurite (1)
-
molybdenite (1)
-
pyrite (1)
-
sphalerite (1)
-
-
-
Primary terms
-
absolute age (6)
-
Africa
-
East Africa
-
Kenya (1)
-
Tanzania (3)
-
-
Limpopo Belt (1)
-
Madagascar (2)
-
North Africa
-
Morocco (1)
-
Tunisia (1)
-
-
Southern Africa
-
Namaqualand metamorphic complex (1)
-
South Africa (2)
-
-
-
Antarctica
-
East Antarctica (1)
-
Queen Maud Land
-
Sor-Rondane Mountains (1)
-
-
-
Arctic region
-
Greenland
-
Godthabsfjord (1)
-
Nuuk Greenland (1)
-
West Greenland (1)
-
-
-
Asia
-
Central Asia (1)
-
Chukotka Russian Federation
-
Chukchi Peninsula (1)
-
-
Far East
-
Burma (1)
-
Cambodia (1)
-
China
-
Fujian China (1)
-
Jiangsu China (1)
-
Shandong China (1)
-
Xizang China (1)
-
Yunnan China
-
Ailao Shan (1)
-
-
-
Thailand (4)
-
Vietnam (2)
-
-
Indian Peninsula
-
Afghanistan
-
Badakhshan Afghanistan (1)
-
-
India
-
Ghats
-
Eastern Ghats (1)
-
-
Southern Granulite Terrain (2)
-
Tamil Nadu India (2)
-
-
-
Kamchatka Russian Federation
-
Kamchatka Peninsula
-
Tolbachik (1)
-
-
-
Middle East
-
Iraq (1)
-
Israel
-
Mount Carmel (6)
-
-
Turkey (1)
-
-
Russian Far East (1)
-
Southeast Asia (1)
-
Sri Lanka (4)
-
Tibetan Plateau (1)
-
Yakutia Russian Federation (1)
-
-
asteroids (2)
-
Australasia
-
Australia
-
New South Wales Australia (3)
-
Queensland Australia
-
Cape York Peninsula (1)
-
Weipa Australia (1)
-
-
Tasmania Australia (2)
-
Victoria Australia (1)
-
-
New Zealand
-
Southland New Zealand
-
Fiordland (1)
-
-
-
-
bibliography (1)
-
boron
-
B-11/B-10 (1)
-
-
brines (1)
-
Canada
-
Eastern Canada
-
Baffin Island (2)
-
Maritime Provinces
-
Nova Scotia
-
Cape Breton Island (1)
-
-
-
Ontario
-
Leeds County Ontario (1)
-
Renfrew County Ontario (1)
-
-
Quebec (1)
-
-
Nunavut
-
Baffin Island (2)
-
-
-
Caribbean region (1)
-
Cenozoic
-
Quaternary (1)
-
Tertiary
-
Neogene (1)
-
Paleogene
-
Oligocene (1)
-
-
-
-
ceramic materials (2)
-
chemical analysis (2)
-
clay mineralogy (4)
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corundum deposits (1)
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crust (7)
-
crystal chemistry (14)
-
crystal growth (10)
-
crystal structure (24)
-
crystallography (2)
-
data processing (1)
-
Deep Sea Drilling Project
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IPOD
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Leg 61 (1)
-
-
-
diamond deposits (3)
-
economic geology (8)
-
Europe
-
Alps
-
Eastern Alps
-
Koralpe Range (1)
-
-
-
Central Europe
-
Austria
-
Koralpe Range (1)
-
-
Bohemian Massif (1)
-
Czech Republic (1)
-
-
Pyrenees
-
French Pyrenees (1)
-
-
Southern Europe
-
Greece
-
Greek Aegean Islands
-
Cyclades
-
Naxos (1)
-
-
-
Greek Thrace
-
Rhodope Greece (1)
-
-
-
Slovenia (2)
-
-
Thrace
-
Greek Thrace
-
Rhodope Greece (1)
-
-
-
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1-20 OF 156 RESULTS FOR
corundum
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Journal Article
Influence of intensive parameters and assemblies on friction evolution during piston-cylinder experiments
Pierre Condamine, Simon Tournier, Bernard Charlier, Etienne Médard, Antoine Triantafyllou, Célia Dalou, Laurent Tissandier, Delphine Lequin, Camille Cartier, Evelyn Füri, Pete G. Burnard, Sylvie Demouchy, Yves Marrocchi
Journal: American Mineralogist
Publisher: Mineralogical Society of America
Published: 01 August 2022
American Mineralogist (2022) 107 (8): 1575–1581.
... (NaAlSi 3 O 8 ) = jadeite (NaAlSi 2 O 6 ) + quartz (SiO 2 ) reaction at 800 and 1000 °C ( Holland 1980 ) using BaCO 3 cells. Third, we investigated the anorthite (CaAl 2 Si 2 O 8 ) + gehlenite (Ca 2 Al 2 SiO 7 ) + corundum (Al 2 O 3 ) = kushiroite (3CaAl 2 SiO 6 ) reaction ( Hays 1966a , 1966b...
Journal Article
Immiscible metallic melts in the upper mantle beneath Mount Carmel, Israel: Silicides, phosphides, and carbides
William L. Griffin, Sarah E.M. Gain, Martin J. Saunders, Jin-Xiang Huang, Olivier Alard, Vered Toledo, Suzanne Y. O'Reilly
Journal: American Mineralogist
Publisher: Mineralogical Society of America
Published: 01 March 2022
American Mineralogist (2022) 107 (3): 532–549.
...William L. Griffin; Sarah E.M. Gain; Martin J. Saunders; Jin-Xiang Huang; Olivier Alard; Vered Toledo; Suzanne Y. O'Reilly Abstract Xenolithic corundum aggregates in Cretaceous mafic pyroclastics from Mount Carmel contain pockets of silicate melts with mineral assemblages [SiC (moissanite), TiC, Ti...
Journal Article
Fluid Inclusion and Titanite U-Pb Age Constraints on the Yuanjiang Ruby Mineralization in the Ailao Shan-Red River Metamorphic Belt, Southwest China
Journal: The Canadian Mineralogist
Publisher: Mineralogical Association of Canada
Published: 07 February 2022
The Canadian Mineralogist (2022) 60 (1): 3–28.
... by detailed petrography, Raman spectroscopy, microthermometry, and in situ titanite laser ablation-inductively coupled plasma-mass spectrometry dating. Some fluid inclusions in the corundum show an interesting morphology with a diaspore crystal fully separating the whole inclusion into two smaller inclusions...
Journal Article
Jingsuiite, TiB 2 , a new mineral from the Cr-11 podiform chromitite orebody, Luobusa ophiolite, Tibet, China: Implications for recycling of boron
Fahui Xiong, Xiangzhen Xu, Enrico Mugnaioli, Mauro Gemmi, Richard Wirth, Edward S. Grew, Paul T. Robinson
Journal: American Mineralogist
Publisher: Mineralogical Society of America
Published: 03 January 2022
American Mineralogist (2022) 107 (1): 43–53.
... , constitute four inclusions up to 50 μm across in corundum recovered from the Cr-11 podiform chromitite orebody near Kangjinla, Luobusa ophiolite, Tibet, China. EELS, EDS, and 3D electron diffraction were applied to study the phases. In one inclusion, jingsuiite forms a rounded grain 40 μm across. Associated...
Journal Article
Cr 2 O 3 in corundum: Ultrahigh contents under reducing conditions
William L. Griffin, Sarah E.M. Gain, Martin Saunders, Fernando Cámara, Luca Bindi, Deborah Spartà, Vered Toledo, Suzanne Y. O’Reilly
Journal: American Mineralogist
Publisher: Mineralogical Society of America
Published: 01 September 2021
American Mineralogist (2021) 106 (9): 1420–1437.
... stages of their evolution, recording a continuous decrease in oxygen fugacity ( f O 2 ) as crystallization proceeded. Corundum coexisting with Fe-Mg-Cr-Al spinels, other Fe-Mg-Al-Na oxides, and Fe-Ni alloys in apparent cumulates crystallized at f O 2 values near the iron-wüstite (IW) buffer ( f O 2 = IW...
Journal Article
Immiscible-melt inclusions in corundum megacrysts: Microanalyses and geological implications
Journal: American Mineralogist
Publisher: Mineralogical Society of America
Published: 01 April 2021
American Mineralogist (2021) 106 (4): 559–569.
...Xi-Sheng Xu; Xiao-Ming Chen; William L. Griffin; Suzanne Y. O'Reilly; Xi-Song Zhang; Li-Hui Chen Abstract Controversies on the origin of zircon, corundum, titanomagnetite, and quartz megacrysts in alkali basalts mostly reflect the lack of direct evidence of a “melt reservoir” required...
Journal Article
Why Tolbachik Diamonds Cannot be Natural
Konstantin D. Litasov, Hiroyuki Kagi, Tatyana B. Bekker, Yoshiki Makino, Takafumi Hirata, Vadim V. Brazhkin
Journal: American Mineralogist
Publisher: Mineralogical Society of America
Published: 01 January 2021
American Mineralogist (2021) 106 (1): 44–53.
... of diamond and deltalumite from Koryaksky volcano; coexistence with super-reduced corundum and moissanite, Mn-Ni silicide inclusions, F-Cl enrichment and F/Cl ratios, and carbon and nitrogen isotopes in Tolbachik diamonds, as well as microtwinning, Mn-Ni silicides, and other inclusions in microcrystalline...
Journal Article
A new occurrence of corundum in eucrite and its significance
Journal: American Mineralogist
Publisher: Mineralogical Society of America
Published: 01 November 2020
American Mineralogist (2020) 105 (11): 1656–1661.
... basalt, gabbro, noritic orthopyroxenite, orthopyroxenite, dunite, harzburgite, and dacite. No other lithology has been reported up to date. In this study, we report a new occurrence of corundum in eucrite meteorite Northwest Africa (NWA) 8647. Three-dimensional petrographic observations reveal...
Journal Article
Parageneses of TiB 2 in corundum xenoliths from Mt. Carmel, Israel: Siderophile behavior of boron under reducing conditions
William L. Griffin, Sarah E.M. Gain, Martin Saunders, Luca Bindi, Olivier Alard, Vered Toledo, Suzanne Y. O'Reilly
Journal: American Mineralogist
Publisher: Mineralogical Society of America
Published: 01 November 2020
American Mineralogist (2020) 105 (11): 1609–1621.
...William L. Griffin; Sarah E.M. Gain; Martin Saunders; Luca Bindi; Olivier Alard; Vered Toledo; Suzanne Y. O'Reilly Abstract Titanium diboride (TiB 2 ) is a minor but common phase in melt pockets trapped in the corundum aggregates that occur as xenoliths in Cretaceous basaltic volcanoes on Mt...
Journal Article
Origin of corundum within anorthite megacrysts from anorthositic amphibolites, Granulite Terrane, Southern India
Journal: American Mineralogist
Publisher: Mineralogical Society of America
Published: 01 August 2020
American Mineralogist (2020) 105 (8): 1161–1174.
...Shreya Karmakar; Subham Mukherjee; Upama Dutta Abstract Growth of corundum in metamorphosed anorthosites and related basic-ultra-basic rocks is an exceptional feature, and its origin remains elusive. We describe the occurrence of and offer an explanation for the genesis of corundum in anorthositic...
Journal Article
An evolutionary system of mineralogy. Part I: Stellar mineralogy (>13 to 4.6 Ga)
Journal: American Mineralogist
Publisher: Mineralogical Society of America
Published: 01 May 2020
American Mineralogist (2020) 105 (5): 627–651.
... evolution mineral ecology natural kinds vapor deposition condensation astromineralogy stardust diamond graphite corundum moissanite hibonite amorphous phases “ The science of Mineralogy has made rapid progress in the past six years; chemistry has opened to us a better knowledge...
Journal Article
Crystallographic and textural evidence for precipitation of rutile, ilmenite, corundum, and apatite lamellae from garnet
Journal: American Mineralogist
Publisher: Mineralogical Society of America
Published: 01 July 2019
American Mineralogist (2019) 104 (7): 980–995.
..., ilmenite, and apatite lamellae in garnet from the Brimfield Schist, Connecticut (≥1000 °C metamorphism; Central Maine Terrane, U.S.A.). We analyzed these data alongside published EBSD data for rutile, ilmenite, and corundum from metapegmatites metamorphosed in the eclogite facies from the Austrian Alps...
Journal Article
Origin of corundum–tourmaline–phlogopite rocks from Badakhshan, northeastern Afghanistan: a new type of metasomatism associated with sapphire formation
Journal: European Journal of Mineralogy
Publisher: GeoScienceWorld Journals
Published: 01 July 2019
European Journal of Mineralogy (2019) 31 (4): 739–753.
...Barbara L. Dutrow; Darrell J. Henry; Ziyin Sun Infiltration of out-of-equilibrium fluids can lead to extensive fluid–rock interactions resulting in unusual and uncommon mineral assemblages that are petrologically and mineralogically important. The corundum (cor)–tourmaline (tur)–phlogopite rocks...
Includes: Supplemental Content
Journal Article
Geochemistry of pink corundum-bearing feldspathic gneiss, Frenchvale quarry, Cape Breton Island, Canada: metamorphism of albitised, Fe-poor clastic rocks
Journal: Mineralogical Magazine
Published: 01 April 2019
Mineralogical Magazine (2019) 83 (2): 249–260.
...J. Victor Owen; Jacob J. Hanley; Mitchell J. Kerr; Matthew Stimson; Brandon Boucher Abstract Frenchvale quarry, once mined for dolomitic marble, contains pink corundum-bearing, quartz-free/-poor, feldspathic gneiss that is unusually sodic (~7% wt.% Na 2 O) and iron-poor (~0.6 wt.% Fe 2 O 3...
Journal Article
A terrestrial magmatic hibonite-grossite-vanadium assemblage: Desilication and extreme reduction in a volcanic plumbing system, Mount Carmel, Israel
William L. Griffin, Sarah E.M. Gain, Jin-Xiang Huang, Martin Saunders, Jeremy Shaw, Vered Toledo, Suzanne Y. O'Reilly
Journal: American Mineralogist
Publisher: Mineralogical Society of America
Published: 01 February 2019
American Mineralogist (2019) 104 (2): 207–219.
... of hopper/skeletal Ti-rich corundum, which have trapped melts that crystallized at f O 2 extending from 7 log units below the iron-wustite buffer (ΔIW = –7; SiC, Ti 2 O 3 , Fe-Ti silicide melts) to ΔIW ≤ –9 (native V, TiC, and TiN). The assemblage hibonite + grossite + spinel + TiN first crystallized late...
Journal Article
A hibonite-spinel-corundum-hematite assemblage in plagioclase-clinopyroxene pyrometamorphic rocks, Hatrurim Basin, Israel: mineral chemistry, genesis and formation temperatures
Journal: Mineralogical Magazine
Published: 01 February 2019
Mineralogical Magazine (2019) 83 (1): 123–135.
...Victor V. Sharygin Abstract The intergrowths of Fe-rich corundum + Al-rich hematite + spinel + hibonite have been found as an assemblage in a plagioclase-clinopyroxene rock (paralava, former hornfels) at the Hatrurim Basin, Hatrurim combustion metamorphic Formation. Most spinels show oriented...
Journal Article
High-pressure granulite facies metamorphism (∼1.8 GPa) revealed in silica-undersaturated garnet-spinel-corundum gneiss, Central Maine Terrane, Connecticut, U.S.A.
Journal: American Mineralogist
Publisher: Mineralogical Society of America
Published: 01 November 2018
American Mineralogist (2018) 103 (11): 1851–1868.
... underutilized potential for pinpointing peak metamorphic conditions, particularly pressure, because of their resilience to melting and the variety of refractory minerals they contain. The typical silica-undersaturated mineral assemblage is garnet + spinel + corundum + plagioclase + K-feldspar + biotite...
Journal Article
Ab initio (DFT) calculations of corundum (α-Al 2 O 3 ) oxygen isotope fractionation
Journal: European Journal of Mineralogy
Publisher: GeoScienceWorld Journals
Published: 01 November 2018
European Journal of Mineralogy (2018) 30 (6): 1063–1070.
...Dmitry P. Krylov; Robert A. Evarestov Equilibrium oxygen isotope ( 18 O/ 16 O) fractionations ( β -factors) for corundum are predicted from first principles using the “frozen phonon” technique within the density functional theory (DFT). Calculations of the phonon frequencies and the isotopic...
Journal Article
A common origin for Thai/Cambodian rubies and blue and violet sapphires from Yogo Gulch, Montana, U.S.A.?
Journal: American Mineralogist
Publisher: Mineralogical Society of America
Published: 01 March 2018
American Mineralogist (2018) 103 (3): 469–479.
..., and oxygen isotope ratios in blue to reddish-violet sapphires from Yogo Gulch, Montana, U.S.A., with rubies from the Chantaburi-Trat region of Thailand and the Pailin region of Cambodia. The similarities between Thai/Cambodian rubies and Yogo sapphires suggest a common origin for gem corundum from both...
Journal Article
The origin of needle-like rutile inclusions in natural gem corundum: A combined EPMA, LA-ICP-MS, and nano-SIMS investigation—Discussion
Journal: American Mineralogist
Publisher: Mineralogical Society of America
Published: 01 December 2017
American Mineralogist (2017) 102 (12): 2521–2522.
... ) Heat treating the sapphires of Rock Creek, Montana . Gems & Gemology , 29/4 , 250 – 272 .
Guo , J. , O'Reilly , S.Y. , and Griffin , W.L. ( 1996 ) Corundum from basaltic terrains: a mineral inclusion approach to the enigma . Contributions to Mineralogy and Petrology , 122...
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