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Diopside and uvarovite

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Journal Article
Published: 01 June 1965
The Canadian Mineralogist (1965) 8 (2): 241–248.
...P.L.C Grubb Abstract Acicular twinned diopside crystals, green uvarovite crystals, and calcite rhombohedra grow in vugs in diopside rock. X-ray diffraction data and chemical analyses of the diopside and uvarovite are given. © 1965 Mineralogical Association of Canada 1965 ...
Image
Diopsidites of hydrothermal origin from Wadi Fizh, Oman ophiolite. ( a ) Ch...
Published: 01 January 2014
the gabbro (G) is rich in diopside, and the greenish part contains uvarovite, anorthite, and chromite. ( c ) Hand specimen of diopsidite rich in chromite (black dots). Grayish to whitish part is rich in diopside. ( d ) Hand specimen of the crustal diopsidite. Black dots are chromite of mantle-rock
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(a) Geological map of Canada showing the location of the Pikoo Property. (b...
Published: 29 July 2023
= pyrope garnet, Ecl = eclogitic garnet, Ilm = ilmenite, Chr = chromite, CD = Cr-diopside, Uv = uvarovite. (c) Detailed view of the North Pikoo uvarovite sampling locations.
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Ternary plot of Cr 3+ , Fe 3+ , and Al 3+  for garnets in diposidites from ...
Published: 01 January 2014
Figure 5 Ternary plot of Cr 3+ , Fe 3+ , and Al 3+ for garnets in diposidites from Wadi Fizh, Oman ophiolite. The uvarovite associated with chromite in the crustal diopside is different in chemistry from that in mantle chromitites from Wadi Hilti, northern Oman ophiolite. Garnet from the mantle
Journal Article
Published: 01 June 1959
American Mineralogist (1959) 44 (5-6): 565–591.
.... The associated chromite grains have a chemical composition similar to that of nearby chromitite seams. Uvarovite-diopside layers between uvarovitc-bearing chromitite seams in the Eastern belt of the Norite are described. It is considered that the uvarovite was formed in pyroxenite and Chromitite where adequate...
Journal Article
Published: 01 June 2010
The Canadian Mineralogist (2010) 48 (3): 523–536.
... to anhedral dissakisite-(La), mukhinite, and clinozoisite are associated with V- and Cr-rich garnet (goldmanite – grossular – uvarovite solid-solution), V- and Cr-rich muscovite, amphibole-group minerals (magnesiohornblende, tremolite, actinolite, and edenite), diopside, titanite, albite, quartz, siderite...
FIGURES | View All (6)
Journal Article
Published: 01 October 2005
American Mineralogist (2005) 90 (10): 1629–1635.
... together with high- P blueschist blocks ( Tsujimori 1998 ); the assemblage of diopsidic pyroxene + grossular-rich garnet (rare uvarovite-rich) is common in these low- P metasomatic rocks. Moreover, some authigenic uvarovite and aragonite veins occur in serpentinite. These parageneses indicate that the K...
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Journal Article
Published: 01 June 2023
South African Journal of Geology (2023) 126 (2): 127–150.
... magmatic skarn that contains several small, cm- to dm-scale, calc-silicate fragments displaying the same peak assemblage as the main xenolith, as well as a dm-scale chromitite autolith and mm- to dm-scale lenses and stringer-like masses of fine-grained uvarovite. The skarn matrix is mineralogically zoned...
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<span class="search-highlight">Uvarovite</span>(Uv)–grossular(Grs)–goldmanite(Gld) composition diagram of Cr-V-ga...
Published: 01 December 2004
Fig. 2. Uvarovite(Uv)–grossular(Grs)–goldmanite(Gld) composition diagram of Cr-V-garnets. Garnets: 1 — from samples VB210 and VB212, 2 — from sample VB246, 3 — from Ol’khon marble, 4 — from Slyudyanka quartz-diopside schists [ 11 ].
Journal Article
Published: 01 January 2008
American Mineralogist (2008) 93 (1): 63–73.
... calcite + quartz = 5 diopside + 3 CO 2 + H 2 O ( Slaughter et al. 1975 ). Textural and compositional relations among M2 Ca-rich phases (diopside, goldmanite-uvarovite-grossular s.s., V,Cr-rich clinozoisite I) indicate the necessity of a Ca influx or the consumption of carbonates from within the source...
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Ternary diagrams showing the major compositions of (A) garnet and (B) pyrox...
Published: 01 March 2019
+ almandine + uvarovite), Di = diopside, Hd = hedenbergite, and Jo = johannsenite. The compositional fields for garnet and pyroxene in Fe skarn deposits worldwide are from Meinert et al. (2005) .
Journal Article
Published: 01 August 2014
American Mineralogist (2014) 99 (8-9): 1767–1773.
... marble quarry (Sludyanka, Lake Baikal, Russia) in association with dravite, oxy-chromium-dravite, oxy-dravite, quartz, calcite, chromphyllite, eskolaite, chromite, uvarovite, chromian phlogopite, and pyroxenes of the diopside-kosmochlor series, Cr-bearing tremolite, Cr-bearing titanite, Cr-bearing rutile...
FIGURES
Journal Article
Published: 01 November 2012
American Mineralogist (2012) 97 (11-12): 2024–2030.
..., calcite, chromphyllite, eskolaite, chromite, uvarovite, chromian phlogopite, and pyroxenes of the diopside-kosmochlor series, Cr-bearing tremolite, Cr-bearing titanite, Cr-bearing rutile, and pyrite. Crystals are emerald green, transparent with a vitreous luster, green streak, and conchoidal fracture. Oxy...
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Journal Article
Published: 01 June 2012
The Canadian Mineralogist (2012) 50 (3): 705–718.
... associated with chromite, in addition to diopside, quartz, clinozoisite and calcite. Two distinct types of green garnets and a brown variety were identified in the calc-silicate rocks. These garnets show complex chemical compositional variations that range between the endmembers of uvarovite, grossular...
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Journal Article
Published: 01 May 1936
American Mineralogist (1936) 21 (5): 312–320.
... note is concerned mainly with the geology and mineralogy of these xenoliths, which are of special interest to mineralogists because of the presence in some of them of well-crystallized green diopside, associated with the chrome-garnet uvarovite. Copyright © 1936 by the Mineralogical Society...
Journal Article
Published: 01 January 2014
American Mineralogist (2014) 99 (1): 28–34.
... the gabbro (G) is rich in diopside, and the greenish part contains uvarovite, anorthite, and chromite. ( c ) Hand specimen of diopsidite rich in chromite (black dots). Grayish to whitish part is rich in diopside. ( d ) Hand specimen of the crustal diopsidite. Black dots are chromite of mantle-rock...
FIGURES | View All (5)
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Photomicrographs and backscattered electron (BSE) images for garnet from th...
Published: 03 July 2023
garnet intergrown with diopside (BSE). ( d ) Granular Stage II garnet replaced by tabular Stage III garnet (plane-polarized light). ( e ) Granular Stage II garnet replaced by tabular Stage III garnet (BSE). ( f ) A ternary diagram illustrating the composition of the Xianghualing garnet. Abbreviations
Journal Article
Published: 01 December 2004
Russ. Geol. Geophys. (2004) 45 (12): 1441–1449.
...Fig. 2. Uvarovite(Uv)–grossular(Grs)–goldmanite(Gld) composition diagram of Cr-V-garnets. Garnets: 1 — from samples VB210 and VB212, 2 — from sample VB246, 3 — from Ol’khon marble, 4 — from Slyudyanka quartz-diopside schists [ 11 ]. ...
FIGURES
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...
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Journal Article
Journal: Lithosphere
Publisher: GSW
Published: 17 October 2023
Lithosphere (2023) 2023 (1): lithosphere_2023_214.
... is noted in the Fe 3+ content, which is the highest (up to 3 wt.% Fe 2 O 3 ) for uvarovite crystals associated with a diopside-pyrrhotite-chalcopyrite skarn. Such Fe amounts reduced the share of the uvarovite end-member at the expense of andradite in the total composition ( Figure 9(b) ). The contribution...
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