	Hin, R.C., Morel, M.L.A., Nebel, O., Mason, P.R.D., van Westrenen, W., Davies, G.R. (2009) Formation and temporal evolution of the Kalahari sub-cratonic lithospheric mantle: Constraints from Venetia xenoliths, South Africa. Lithos, 112. 1069-1082 doi:10.1016/j.lithos.2009.06.020	Journal (article/letter/editorial)
	lithospheric mantle: Constraints from Venetia xenoliths, South Africa R.C. Hin a,⁎, M.L.A. Morel a, O. Nebel...Craton formation a b s t r a c t The ~533 Ma Venetia Diamond Mine is located between the Kaapvaal and Zimbabwe...lithospheric mantle (SCLM) underneath southern Africa, as well as the extent and potentially the timing...can be modelled by 20% fractional melting in the garnet stability ﬁeld followed by ~10 to 13% in the spinel...and Ce/Yb ratios for melts in equilibrium with garnet and clinopyroxene suggest that the xenolith suite
	*Stachel, T., Harris, J.W. (2008) The origin of cratonic diamonds — Constraints from mineral inclusions. Ore Geology Reviews, 34 (1) 5-32 doi:10.1016/j.oregeorev.2007.05.002*	Journal (article/letter/editorial)
	overlap with the record established from cratonic garnet peridotite xenoliths and xenocrysts but reﬂect...indicate polybaric melt extraction proceeding from the garnet into the spinel stability ﬁelds, most readily explained...mineralogical layers, spinel facies (lilac) and garnet facies (purple to pink). Small volume melt fractions...inclusion-bearing diamonds from the mines of South Africa and Botswana was begun by Gurney and Harris...diamonds is not known. In early work (1973–1985) run-of-mine diamonds in the sieve class −6 + 5 (1.83 mm aperture
	Stachel, T., Viljoen, K. S., McDade, P., Harris, J. W. (2004) Diamondiferous lithospheric roots along the western margin of the Kalahari Craton?the peridotitic inclusion suite in diamonds from Orapa and Jwaneng. Contributions to Mineralogy and Petrology, 147 (1) 32-47 doi:10.1007/s00410-003-0535-1	Journal (article/letter/editorial)
	is the relative paucity of low-Ca (<2 wt% CaO in garnet) harzburgites and a low ratio of harzburgitic to...Consolidated Mines, PO Box 82232, 2135 Southdale, South Africa P. McDade Department of Geology Geophysics,...re-enrichment but the trace element signature of garnet inclusions is not in favor of strong enrichment...mines the majority of lherzolitic and harzburgitic garnet inclusions are characterized by moderately sinusoidal...Examples are the Premier and De Beers Mine kimberlites in South Africa (Gurney 1984; Griﬃn et al. 2003),
	*(1998) Extended Abstracts - 7th International Kimberlite Conference Cape Town* .**	Book
	responsibility for authors’ errors and omissions. SOUTH AFRICA SEVENTH INTERNATIONAL KIMBERLITE CONFERENCE... De Beers Consolidated Mines SPONSORS Bateman Group (including Bateman Process Equipment, Bateman Minerals...Trans Hex Group Ltd CONTRIBUTORS Council for Geoscience (Geological Survey of South Africa) SouthemEra...Ltd SOCIETY SPONSORS Geological Society of South Africa (GSSA) The International Association of Geochemistry...Pressures and Temperatures. Relationships between garnet and clinopyroxene in Vitim mantle xenoliths: evidence
	*Dobosi, Gabor, Kurat, Gero (2010) On the origin of silicate-bearing diamondites. Mineralogy and Petrology, 99 (1) 29-42 doi:10.1007/s00710-009-0091-0*	Journal (article/letter/editorial)
	diamond”, “framesite”), presumably from southern Africa, were analyzed for trace element contents by LA-ICP-MS...events. In this study we distinguish 5 chemical garnet groups: “peridotitic” (P), intermediate (I) and...Chondrite-normalized trace element patterns for the garnet groups roughly correlate with major element abundances...incompatible elements relative to the P garnets. Of all garnet groups, E3 garnets are the poorest in highly incompatible...estimated from the trace element contents of the garnet-diamond intergrowths (Dobosi and Kurat 2002), or
	*(1992, September) Gems & Gemology* Vol. 28 (3) Gemological Institute of America**	Journal (issue)
	Radiation-Induced Yellow-Green Color in Grossular Garnet Kurt Nassau, George R. Rossman, and Darwin L. Wood...referring to misnomers and misleading names like malala garnet, green tanzanite, and sunstone labradorite, which...which are the most important, among others. Malaia garnet (correctly spelled with an "i") is an obscene name...tsavorite, for the vibrant green grossular from East Africa, they were widely accepted in the American trade...trade. Since this stone is actually a mixture of garnet species, the question is really whether a separate
	Banas, A., Stachel, T., Phillips, D., Shimizu, N., Viljoen, K.S., Harris, J.W. (2009) Ancient metasomatism recorded by ultra-depleted garnet inclusions in diamonds from DeBeers Pool, South Africa. Lithos, 112. 736-746 doi:10.1016/j.lithos.2009.04.043	Journal (article/letter/editorial)
	recorded by ultra-depleted garnet inclusions in diamonds from DeBeers Pool, South Africa A. Banas a,⁎,1, T. Stachel...Box 524, Auckland Park, 2006, Johannesburg, South Africa e Division of Earth Sciences, University of...Paleoarchean Nb anomaly a b s t r a c t Peridotitic garnet inclusions in diamonds from the DeBeers Pool mines...extremely depleted mantle source. A large number of garnet inclusions have CaO contents of less than 1.8 wt...and other trace elements show that DeBeers Pool garnet inclusions, despite their ultradepleted major element
	Dongre, Ashish N., Viljoen, K. S., Rao, N. V. Chalapathi, Gucsik, A. (2016) Origin of Ti-rich garnets in the groundmass of Wajrakarur field kimberlites, southern India: insights from EPMA and Raman spectroscopy. Mineralogy and Petrology, 110 (2) 295-307 doi:10.1007/s00710-016-0428-4	Journal (article/letter/editorial)
	with chromian spinels, perhaps suggesting that the garnet formed through the replacement of spinel. From...Swartruggens orangeite on the Kaapvaal craton in South Africa, as well as in other kimberlites with an orangeitic...and the low Al-nature, of the parent magma (i.e. Group II kimberlites). Introduction Editorial handling:...Johannesburg, PO Box 524, Auckland Park 2006, South Africa 2 Department of Geology, Center of Advanced...presently thirty-two approved species in the garnet group of minerals (Grew et al. 2013). Amongst these
	*Dobosi, G., Kurat, G. (2002) Mineralogy and Petrology, 76 (1) 21-38 doi:10.1007/s007100200030*	Journal (article/letter/editorial)
	these diamondites come from somewhere in southern Africa ± presumably from Botswana, because similar rocks...Garnets in diamondites. A Polycrystalline eclogitic garnet (Dia 079) ®lling a cavity and intergrown with ®ne-grained...Length of picture: 2 mm. B Polycrystalline eclogitic garnet (Dia 016) intimately intergrown with and including...of picture: 1 mm. C Polycrystalline peridotitic garnet (Dia 015) ®lling cavity and intergrown with diamond...porous rock, 200±400 mm abundant, deep honey-yellow garnet, 200±600 mm ®ne-grained porous rock, contact twins
	*Spencer, L. J. (1946) A Key to Precious Stones* (2nd ed.) Blackie & Son Ltd, Glasgow.**	Book (edition)
	Albert Museum, and the Imperial Institute, all at South Kensington. Many of the examples referred to in...the British Museum of Natural History, also at South Kensington. NOTE TO SECOND EDITION A few minor... • - - 177 - - 187 ' X¥IIL The Quartz Group - - - • XX." Jade (Nephrite and Jadeite) ...Workings of the Kimberley Diamond Mine* at Kimberley, South Africa - IV. {a) Crystal of Diamond in...manufactured commercially. Uvarovite or chrome-garnet owes its green colour to chromium which is here
	*Palmer, Crystal S. - Ed.* (1986) GEOREF Thesaurus and Guide to Indexing (4th ed.) American Geological Institute, Alexandria, VA.**	Book (edition)
	are not listed in the Thesaurus. These include local geographic terms, U.S. county names, rock-formation...beginning with “northern”, “eastern”, “northwestern”, “south-central”, etc., is limited. However, other such... a. Geographic Coordinates peridot BA olivine group nesosilicates orthosilicates silicates BT minerals...(BT-NT) relationship is that of a group to an individual in the group, e.g., BT minerals to NT silicates...of the specific minerals in the olivine group, the olivine group is one of several mineral groups in the
	*Harben, Peter W., Bates, Robert L. (1990) Industrial Minerals - Geology and World Deposits. Industrial Minerals Division, Metal Bulletin Plc, London.*	Book
	—_— 1.12 — 8 10 — —_ 12 14 _ — Courtesy of F&S Group Geology and World Deposits TAO 6.30 5.60 5.00 4...and related materials Feldspar 106 Fluorspar Garnet Graphite 110 Slate Sodium sulfate 122 = 130...major producing districts, or a representative district if there are many. We name the chief mining companies...supply must come not merely from one district but from a single mine. Thus the physical properties of many...the industrial minerals covers a highly diverse group of materials. At the one extreme is gravel and crushed
	*(2001) The Journal of Gemmology* Vol. 27 (6) Gem-A**	Journal (issue)
	North West - I. Knight, Scottish - B. Jackson, South West - R.M. Slater Examiners: A.J. A l l n u t t...Longkin worksite, north of323 Pharkant mining district, northern Myanmar. This jadeite had a full green...'hte long sein' - which means 'full green' in the local language. Later, the Chinese transliterated the... 1997). In the past, ancient Indians used many local decorative stones as well as sodalite from Bolivia...interesting recent gemstone produced in Peru and used in local jewellery for at least 25 years, is a greenish-blue
	*Shimomura, Ruth H. - Ed.* (1989) GEOREF Thesaurus and Guide to Indexing (5th ed.) American Geological Institute, Alexandria, VA.**	Book (edition)
	commonly have several variants, such as Great Smoky Group, Great Smoky Conglomerate, Great Smoky Formation...If used on level 1, Term set options are: rock group (carbonate rocks, chemi¬ cally precipitated rocks...have been added to the Thesaurus. These include local geographic names, U.S. counties, rock formations...was adopted. Broader Term (BT, BX, BA, BZ) - A group of which the Term is a member or an area in which...Term (NT, NX, NA, NZ) - A specific mem¬ ber of a group which is represented by the Term or an area within
	*Wodiska, Julius (1909) A Book of Precious Stones. G.P.Putnam's Sons, London. 365pp.*	Book
	ILLUSTRATIONS PAGB ........ KimlDerley, Soutli Africa, workings Kaffir employees Diamond Mines: Open...Kimberley, South Africa Railway One 32 ... 34 Kimberley Mines 36 to Kimberley, South Africa day's...Amethyst crystals 96 Illustrations xiv PAOB Garnet crystals, and pebbles of Pyrope. Sapphires. Diamond...interesting books commerce right at nowhere the case district. In fact, in our their down- no trade is...second class, and therefore at the head of the group of Precious Stones proper, stands beyond all doubt
	*(2011, April) Gems & Gemology* Vol. 47 (1) Gemological Institute of America**	Journal (issue)
	northeastern China. 42 Aquamarine from the Thuong Xuan District, Thanh Hoa Province, Vietnam Le Thi-Thu Huong...subscribers should add GST. Discounts are available for group subscriptions, renewals, GIA alumni, and current...Praszkier and Gajowniczek (2010) and Pezzotta (2010b). Local newspaper articles (e.g., Razafindramiadana, 2009)... an intrusive massif of Cretaceous age located south of the Nosy Be archipelago on the Ampasindava peninsula...review is given here. Between 2006 and 2008, a few local people from Antetezambato (at the time a small village
	Dill, Harald G. (2010) The “chessboard” classification scheme of mineral deposits: Mineralogy and geology from aluminum to zirconium. Earth-Science Reviews, 100 (1) 1-420 doi:10.1016/j.earscirev.2009.10.011	Journal (article/letter/editorial)
	. . . . . . . . . . . . . . . . . . . Platinum group elements (PGE) . . . . . . . . . . . . . . . . ...platinum-group-element deposits . . . . . . . . . . . . 6.3. Structure-related platinum-group-element...Sedimentary platinum-group-element deposits . . . . . . . . . . 6.5. Platinum-group-element supply and...inosilicate supply and use. . . . . . . . . . . . . . Garnet . . . . . . . . . . . . . . . . . . . . . . . ...Chemistry and mineralogy of garnet-group minerals . . . . . . . . 45.2. Magmatic garnet deposits . . . . . .
	Dill, Harald G. (2010) The “chessboard” classification scheme of mineral deposits: Mineralogy and geology from aluminum to zirconium. Earth-Science Reviews, 100 (1) 1-420 doi:10.1016/j.earscirev.2009.10.011	Journal (article/letter/editorial)
	. . . . . . . . . . . . . . . . . . . Platinum group elements (PGE) . . . . . . . . . . . . . . . . ...platinum-group-element deposits . . . . . . . . . . . . 6.3. Structure-related platinum-group-element...Sedimentary platinum-group-element deposits . . . . . . . . . . 6.5. Platinum-group-element supply and...inosilicate supply and use. . . . . . . . . . . . . . Garnet . . . . . . . . . . . . . . . . . . . . . . . ...Chemistry and mineralogy of garnet-group minerals . . . . . . . . 45.2. Magmatic garnet deposits . . . . . .
	*(2006, September) Gems & Gemology* Vol. 42 (3) Gemological Institute of America**	Journal (issue)
	($250,000) Monday Debate Centers The Steinmetz Group Instore Magazine GIA's 75th Diamond Anniversary...Professional Jeweler ABN Amro Bank/ The VNU Jewelry Group Monday Afternoon Interlude Opening Session with...By My Way Jewelry Co. Inc. Hotel Key Cards TJF Group (in collaboration with Vicenza Fair on the Italian...Block Insurance Tuesday Debate Centers Rapaport Group of Companies Cybercafé GRC Travel Grant Sponsorships...Left to right, starting with the top row—13.72 ct South Sea pearl from the Philippines, 6.05 ct and 13.51
	*O'Donoghue, Michael (1988) Gemstones. Chapman and Hall, London.*	Book
	a mineral belonging to the actinolitetremolite group having the nature of an asbestos. cabochon a gemstone...the magma as a whole. Diamondiferous pipes in South Africa and elsewhere contain this kind of rock. When...cavities. Contact metamorphism is usually fairly local in extent but where the country rock is recrystallized...stone came from — some¬ times down to the actual mine. Today it is commonplace to see in sale catalogues...some emerald, quartz and garnet • anatase in rock crystal • apatite in garnet, kornerupine, corundum and
	*Mitchell, Roger H. (1986) Kimberlites. Springer US. doi:10.1007/978-1-4899-0568-0*	Book
	Kimberlites are consequently of interest to a diverse group of earth scientists, ranging from isotope g~ochemists............................... 126 5.3.3.2. West Africa ........................................... 126............ .................... 6.4.3. Pyroxene-Garnet Intergrowths (Paragenesis 3) . . . . . . . . ..... . . . . . . . . . . . . 6.4.9. Orthopyroxene-Garnet Intergrowths ................................ 6...11. 6.12. 6.13. 6.14. 6.15. 6.6.3 .1. Diverse South African Kimberlites (Dawson and Smith 1975, Smith
	*Haldar, S. K. (2020) Introduction to Mineralogy and Petrology* (2nd ed.) Elsevier.**	Book (edition)
	the extrusive (volcanic) igneous rocks 5.3 Main group of igneous rocks and their composition 113 114...the mineral industry and human consequences 11.6.1 Mine waste catastrophe 11.6.2 Mineral process plant failure...and Australopithecus (genus’ of hominins) in East Africa about 2.5 million years ago. The importance of...Guwahati (340 km)/ Tezpur (155 km)/Bomdila (42 km) in south, and Tawang (78 km) in north by main access road...feldspar (CaNaAlSi3O8), albite (NaAlSi3O8), mica group, such as muscovite (H2KAL3 (SiO4)3) and biotite
	*Dolbear, Samuel H., Bowles, Oliver - Eds.* (1937) Industrial Minerals and Rocks - Nonmetallics Other than Fuels (1st ed.) The American Institute of Mining Engineers, New York.**	Book (edition)
	for pnu1, whid1 are obtained principally from South Africa.. Carbons come mainly from the State of Hahia...recognized in the United States from samples found in South Carolina, but corundum mining did not start until...artificial stones as well a.s from minerals such as garnet or colored qua.rtz. Pleochroism is very strong...Cana.da and feldspathic rocks in foSouth Africa. 'fhe <>rigin ol corundum has been discussed...vicinity of free ailic,a, 1uoh a.s quartz. The South African corundum is inva.ria.bly auooit.ted with
	*(2019, Spring) Gems & Gemology* Vol. 55 (1) Gemological Institute of America**	Journal (issue)
	in opal • Trapiche-like ruby from the Batakundi mine in Kashmir • Sapphire inclusion with rutile “silk”...nephrite from Washington • Color-change pyrope garnet • Colombian emerald and Mozambican ruby • Colored...Moonstone jewelry • Oregon sunstone • Potentate mine sapphire update • “Rainbow lattice” feldspar • Responsibly... Paris, France Wuhan, China Johannesburg, South Africa Gaston Giuliani Thomas M. Moses Wuyi Wang...add GST. Discounts are available for renewals, group subscriptions, GIA alumni, and current GIA students
	*Okrusch, Martin, Frimmel, Hartwig E. (2020) Mineralogy. Springer Berlin Heidelberg. doi:10.1007/978-3-662-57316-7*	Book
	Sciences University of Cape Town Rondebosch, South Africa ISSN 2510-1307 ISSN 2510-1315 (electronic)...Azurite crystals, partly replaced by malachite, Tsumeb mine, Namibia; width of view ca. 3 cm; collection H.E... . . . . . . . . . . . . . . . . . . . Calcite Group, 3̄2/m . . . . . . . . . . . . . . . . . . . . ... . . . . . . . . . . . . . . . . . . Aragonite Group, 2/m2/m2/m. . . . . . . . . . . . . . . . . . ..... . . . . . . . . . . . . . . . . . . Dolomite Group. . . . . . . . . . . . . . . . . . . . . . . .

Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2024, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: April 25, 2024 07:27:27

Go to top of page

Garnet Group from Venetia Mine, Musina Local Municipality, Vhembe District Municipality, Limpopo, South Africa

Garnet Group from
Venetia Mine, Musina Local Municipality, Vhembe District Municipality, Limpopo, South Africa