1-20 OF 76 RESULTS FOR

chromian andradite

Results shown limited to content with bounding coordinates.
Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Journal Article
Published: 01 May 1984
The Canadian Mineralogist (1984) 22 (2): 341–345.
...M. Qasim Jan; Brian F. Windley; Robert N. Wilson Abstract Green chromian andradite occurs associated with chrysotile in a chromitite layer within the Jijal Complex (northern Pakistan). The garnet contains, on average, 10.1 wt. % Cr 2 O 3 (range 9.2-11.6%) and has a formula Ca (sub 3.04) (Cr (sub...
Journal Article
Published: 01 February 1982
The Canadian Mineralogist (1982) 20 (1): 49–53.
Journal Article
Published: 01 April 2011
The Canadian Mineralogist (2011) 49 (2): 573–580.
...Biswajit Ghosh; Tomoaki Morishita Abstract Compositions of chromium-bearing garnet with little grossular content belong to the uvarovite–andradite solid-solution series. They are extremely rare in nature. Here, we report the occurrence of chromian andradite with up to 50 mol.% uvarovite component...
FIGURES | View All (5)
Journal Article
Published: 01 May 2010
American Mineralogist (2010) 95 (5-6): 839–843.
... , J. ( 1992 ) Rock forming minerals. IA. Orthosilicates , 2 nd edition. Longman, London . Duke , J.M. and Bonardi , M. ( 1982 ) Chromian andradite from Reaume Township, Ontario . Canadian Mineralogist , 20 , 49 – 53 . Dyar , M.D. ( 1984 ) Precision...
FIGURES
Journal Article
Published: 01 August 2007
The Canadian Mineralogist (2007) 45 (4): 793–808.
...Chien-Yuan Tseng; Houng-Yi Yang; Han-Quan Wu; Guo-Chao Zuo Abstract Diopside, enstatite, pargasite, aspidolite, analcime, chlorite, serpentine, titanite, andradite, and grossular are found as mineral inclusions in grains of chromian spinel in the troctolites and dunites of the layered cumulate...
FIGURES | View All (9)
Image
Plots of <span class="search-highlight">chromian</span> garnet compositions (mol.%) from the Rutland ophiolite, A...
Published: 01 April 2011
F ig . 5. Plots of chromian garnet compositions (mol.%) from the Rutland ophiolite, Andaman, in terms of the Cr– VI Al–Fe 3+ triangular diagram. Dark grey shaded areas represent the field of uvarovite–andradite garnet worldwide, as compiled by Proenza et al. (1999) ; the light grey shaded
Journal Article
Published: 01 October 2010
The Canadian Mineralogist (2010) 48 (5): 1205–1216.
... in ferromagnesian silicates and oxides from microprobe analyses, using stoichiometric criteria . Mineral. Mag . 51 , 431 – 435 . Duke , J. M. & Bonardi , M. ( 1982 ): Chromian andradite from Réaume Township, Ontario . Can. Mineral . 20 , 49 – 53 . Du Toit , G. , Mayerson , W...
FIGURES
Journal Article
Journal: Lithosphere
Publisher: GSW
Published: 17 October 2023
Lithosphere (2023) 2023 (1): lithosphere_2023_214.
... , “On the composition of some Canadian green Garnets,” The Canadian Mineralogist , vol. 16 , pp . 205 – 206 , 1978 . 8 J. M. Duke and M. Bonardi , “Chromian Andradite from Reaume Township, Ontario,” The Canadian Mineralogist , vol. 20 , pp . 49 – 53 , 1982 . 9 M. Q. Jan...
FIGURES | View All (10)
Journal Article
Published: 29 July 2023
The Canadian Journal of Mineralogy and Petrology (2023) 61 (4): 767–785.
.... 1999 , Pal & Das 2010 ). The majority of the studied garnets are uvarovite, with the exception of grossular garnets near the grossular apex of the Uv–Grs–Adr ternary diagram and two unusual uvarovite–andradite solid solutions ( Fig. 6 ). Our uvarovite–grossular garnets cover a wide compositional...
FIGURES | View All (11)
Journal Article
Journal: Economic Geology
Published: 01 June 2010
Economic Geology (2010) 105 (4): 825–840.
.... Chromian diopside, with 1.13 to 2.04 wt percent Cr 2 O 3 , is also highly magnesian (Mg# = 0.84–0.87). Garnet, in the moissanite-bearing inclusions, is magnesium-free grossular-andradite and spessartine-grossular-andradite with 0.84 to 4.52 wt percent Cr 2 O 3 . Single chromite grains have the highest...
FIGURES | View All (13)
Journal Article
Published: 01 June 2012
The Canadian Mineralogist (2012) 50 (3): 705–718.
... & Fleet 1989 ). Uvarovitic garnet typically contains significant amounts of grossular and andradite components and is commonly interpreted to have formed from chromite (Cr-rich spinel) by metasomatic reaction ( Challis et al . 1995 ). However, conditions for the metamorphic evolution of chromian spinel...
FIGURES | View All (9)
Journal Article
Published: 01 January 2004
American Mineralogist (2004) 89 (1): 7–14.
...Tatsuki Tsujimori; Juhn G. Liou Abstract Chromian clinopyroxenes with exsolution textures were found in high-pressure (HP) tremolite schist from the Osayama serpentinite melange in the Chugoku Mountains, Southwestern Japan. Chromian omphacite [jadeite (Jd) 23.3–41.4 diopside (Di) 46.7–60.7...
FIGURES | View All (6)
Journal Article
Published: 01 August 2003
American Mineralogist (2003) 88 (8-9): 1331–1335.
... (001) layers of gibbsite-like fused hexagonal rings of edge-shared Ti(O,OH) 6 octahedra with the Ca atoms sandwiched between pairs of opposing rings and displaced from the center of the rings along [010]. Ordering of the protons in chromian kassite lowers the symmetry to P 2 1 / a . Kassite, CaTi 2 O 4...
FIGURES
Journal Article
Published: 01 January 2008
American Mineralogist (2008) 93 (1): 63–73.
...Pavel Uher; Martin Kováčik; Michal Kubiš; Alexander Shtukenberg; Daniel Ozdín Abstract Mineralization, involving vanadian-chromian silicates, has been studied in Lower Paleozoic, carbon-rich amphibole schists with pyrite and pyrrhotite near Pezinok, southwest Slovakia. A detailed electron...
FIGURES | View All (8)
Journal Article
Published: 01 February 2005
American Mineralogist (2005) 90 (2-3): 473–480.
... content of olivine vs. Y Cr of spinel. Note that, for coexisting chromian spinel-olivine pairs in harzburgite and dunite, the XCr and Fo content have a positive The studied rocks were obtained from a chromitite layer and surrounding peridotites at the eastern part of the quarry (outcrop...
FIGURES | View All (8)
Journal Article
Published: 01 January 2015
European Journal of Mineralogy (2015) 27 (1): 31–50.
... (locally with inclusions of partially disordered graphite), calcite, magnetite, andradite/hydroandradite, prograde olivine, brucite and serpentine (mostly antigorite but also relict lizardite), with minor chlorite and accessory apatite. Magnetite content can be very high. In these rocks, magnetite...
FIGURES | View All (9)
Journal Article
Published: 01 October 2007
The Canadian Mineralogist (2007) 45 (5): 1115–1129.
... (5900–26000 ppm) exists in whole-rock samples. Among the minerals, grossular (Th + U: 0.10–3.97 wt.%, ∑LREE: 4.40–7.80 wt.%), chromian ferriallanite-(Ce) (Th + U: 0.02–0.20 wt.%, ∑LREE: 19.30–24.50 wt.%) and a chromian variety of cerite-(Ce) recorded here for the first time (Th + U: 0.97–1.35 wt...
FIGURES | View All (14)
Journal Article
Published: 01 April 2004
The Canadian Mineralogist (2004) 42 (2): 545–562.
...Federica Zaccarini; Evgeny V. Pushkarev; German B. Fershtater; Giorgio Garuti Abstract We have investigated two subeconomic bodies of chromitite in the Nurali lherzolite–gabbro complex, in the southern Urals, Russia, with regard to the composition of the chromian spinel and the distribution...
FIGURES | View All (11)
Journal Article
Published: 01 April 2023
Russ. Geol. Geophys. (2023) 64 (4): 407–423.
... difference between quartz–feldspar layers with chromian minerals and quartzite between them. Bottom: quartz–feldspar layers with predominant chromphyllite (left) and uvarovite (right). ✉ Corresponding author. E-mail address: garry@crust.irk.ru (L.Z. Reznitsky) 22 03 2022 16 06 2022...
FIGURES | View All (11)
Journal Article
Published: 03 April 2000
Canadian Journal of Earth Sciences (2000) 37 (4): 517–533.
... lamprophyre dykes. The chemical zonation of the micas and the presence of andradite suggest a complex sequence of crystallization. An Ar isotope correlation analysis indicates an age of approximately 550 Ma. The dykes have intruded the Tasiuyak gneiss, a suite of Paleoproterozoic metasedimentary rocks...
FIGURES | View All (7)