 | | Journal (article/letter/editorial) | | Johannesburg, South Africa brucec@uj.ac.za TSAVORITE The Green Gem Variety of Grossular Merelani Hills...the multicolored hydrogrossular “Transvaal jade” from South Africa (Hall 1924; Page 1970) and similar...massive material from Pakistan (Anderson 1966). Grossular forms in contact-metamorphosed limestone/marble...hydrogrossular (Transvaal jade), and tsavorite, the emerald-green grossular. Variably colored grossular specimens...important question: “At what point does green grossular have sufficient depth and intensity of color to |  | Gutzmer, J., Pack, A., Lüders, V., Wilkinson, J., Beukes, N., Niekerk, H. (2001) Formation of jasper and andradite during low-temperature hydrothermal seafloor metamorphism, Ongeluk Formation, South Africa. Contributions to Mineralogy and Petrology, 142 (1) 27-42 doi:10.1007/s004100100270 | Journal (article/letter/editorial) | | hydrothermal sea¯oor metamorphism, Ongeluk Formation, South Africa Received: 19 September 2000 / Accepted: 22...Springer-Verlag 2001 Abstract Andradite and andradite±grossular solid solutions have repeatedly been described...Paleoproterozoic Ongeluk Formation, Transvaal Supergroup, South Africa.The andradite is most commonly...University, P.O. Box 524, Auckland Park 2006, South Africa E-mail: jg@na.rau.ac.za Tel.: +27-11-4892301...so-called grandite group), including andradite and grossular, are widespread in medium- to high-grade metamorphic |  | | Journal (article/letter/editorial) | | synthetic, kinetics of ordering in, 436 Allanite: South Harris, 367; Sutherland, 389 Almandine: magnetic... 428; morphology, 63 Basalt, amygdaloidal, New South Wales, secondary minerals in, 480 Basic rocks, origin...eryptomelane, 334 Bertrandite, Cornwall, 921 Betafite(?), South Harris, spectr, anal., X-ray, 376 Beudantite, Cumberland..., 664 ; bismuthiferous, South-West Africa, anal., X-ray, 664 Biotite: South Harris, anal., opt., spectr...E x s o h t i o n in pyroxenes, 379 Braggite, Transvaal, 833 BI~AITHWAITE (ry[. S. W.), see I{YBACK (G |  | | Journal (article/letter/editorial) | | 164, l99l The hydrous components in garnets: Grossular-hydrogrossular Gnoncr R. RossrrlN, Rocnn D. Arxts*...Pasadena,California 9 I 125, U.S.A. Ansrucr Grossular garnets from 33 localities were examined for indications...have been identified in the spectra of common grossular,occurring in groups of four to ten bands. Both...grossulartypically contains less than 0.3 wto/oHrO. Grossular from rodingites and low-temperature alteration...content of common, macroscopic garnets of the grossular com- position. Becausethe hydrogarnet substitution |  | | Journal (issue) | | TRANSPARENT GREEN GROSSULAR—A NEW GEM VARIETY; TOGETHER WITH OBSERVATIONS ON TRANSLUCENT GROSSULAR AND IDOCRASE...to the calcium-aluminium species, grossular. Transparent grossular of brownish-orange colour has, of..."cinnamon stone". In later years translucent massive grossular in shades of green or pink have also become fairly...matched very closely the hessonite variety of grossular, having refractive index 1*738 a n d density 3-63...effect was very reminiscent of a chrome-rich grossular which h a d been tested about a year previously |  | | Journal (article/letter/editorial) | | some grossular garnets with H2O contents less than 0.5%. Many colorless to near-colorless grossular garnets...spessartine-almandine series (Rossman et al. 1988), for grossular (Rossman and Aines 1991), and for pyrope (Bell...suite of grossular samples used by Rossman and Aines (1991) in their study of OH in grossular, and the...0003-004X/02/0203–307$05.00 307 Sample description Forty-one grossular and ten spessartine-almandine garnets with OH...spectroscopy were analyzed for this study. The grossular garnets range from colorless to green to brown-orange |  | | Journal (article/letter/editorial) | | Common Almandine Fe Al (Si0 ) Andradite Ca Fe Grossular Ca Al (Si0 ) Pyrope M 3 2 3 4 2 A 1...to small to cut. found in Ceylon and Brazil. GROSSULAR, syn. Grossularite. Named U V A R O V I T E ....) . garnet. 3 Rosolite, syn. Landerite-Pink grossular occurs with Idocrase, Wollastonite, etc. Has been...bright green to gray green material is called "South African Jade". Occurs associated Andradite—near...Andradite—near Bancroft, Ontario, Canad< chromite in Transvaal. 586 ROCKS AND MINERALS Demantoid-Urals. Essonite—Asbestos |  | | Journal (article/letter/editorial) | | massive, birefringent hydrogarnet samples from South Africa [1. green “jade” and 2. pink “jade”] were carried...X3Y2Z3O12, for garnet. Phase 1a is near end-member grossular, ideally Ca3Al2Si3O12. The deficiencies of the...compared to a typical Z–O distance in anhydrous grossular or phase 1a. The H atoms occur in different environments...hydrogrossular. Keywords Hydrogarnet · Hydrogrossular · Grossular · Katoite · Birefringence · Multi-phase intergrowths.... For example, solid solutions occur between grossular (Grs), Ca3Al2[SiO4]3, and Si-free katoite, Ca3Al2[O4H4]3; |  | | Journal (article/letter/editorial) | | c ~ , Department of Geology, University of New South Wales, ,4mtra//a; Morna Mathim, Divi6on of Geologiral...Sciences, Uni~rsity oj Cape To~n, Rondebosch, C. P. South Africa. Introduction Ultt ~mafic xenoliths, which...occurrences of eclogite in the kimberlites of Southern Africa, and Rickwood (in press) has made a companion compilation...Province; O.F.S. --- Orange Free State; TvL = TransvaaL) Locality References (a) Diamond-Edog:~ Bellsbank...of such xenoliths in the kimberlites of Southern Africa. We have compiled similar data from the Russian |  | | Journal (article/letter/editorial) | | 801. Age determinations: monazite, sphene, South-west Africa, 519; charnockites, Andhra Pradesh, India...Almandine, Israel, anal., opt., cell-size, 385; New South Wales, anal., opt., X-ray, 561; Rajasthan, India...Alunite, lsrael, derived from pyrite, 84. Amosite, Transvaal, anal., opt., thermal decomposition, 445. Amphiboles...in, 46; classification of, lxv, 945. Andamoolca, South Australia, opal, 429. Andalusite, pseudomorphs of...ternperature, formation of secondary minerals, 408; New South Wales, anal. of glass in, 847. BASDEN (I~.), see |  | | Journal (issue) | | Morgan, F.G.A. North-West Branch: 1. Knight, F.G.A. South Yorkshire & District Branch: J. I. Platts, F.G.A...occurring at Chimwadzulu (Chiradzulu?), some 800 miles south of the Umba River and close to the border between...(order of days), 533 J.Oemm., 1983,XVI1I,6 Africa Natural emeralds America Synthetic emeralds...6 1 1 1 South Africa, Cobra Mine, Transvaal South Africa, Cobra Mine, Transvaal South Africa, Cobra Mine...Mine, Transvaal South Africa, Cobra Mine, Transvaal South Africa, Cobra Mine, Transvaal South Africa, Cobra |  | | Journal (article/letter/editorial) | | Springer-Verlag 1980 Hydration and Phase Relations of Grossular-Spessartine Garnets at P n2o = 2 Kb L.C. Hsu Nevada... Abstract. The phase relations in the system grossular- spessartine-H20 were investigated at 2.0 Kb...intermediate members, a complete solid solution between grossular and spessartine exists. Linear relations between...~C with a0 = 11.849(2) A and 11.613(2) ~ for grossular and spessartine, respectively. Hydrated garnets...at higher temperature for the Ca-rich members. Grossular and spessartine formed at 420 ~ C have ao= 11 |  | | Journal (article/letter/editorial) | | in black slate from the Abercrombie beds, New South Wales, 381; - - manganian, from West Bengal, India...lead oxycarbonate as a mine-fire product, 647; NEW SOUTH WALES,sapphire dating experiments, 113; TASMANIA...599 Black slate, from the Abercrombic beds, New South Wales, 381 Blueschist terrain, fluid inclusions...and Ksl~UT, J. R., rare minerals in Dalbeanie, South Scotland, 129 BRAZIL, blue tourmalines from, 553;...inclusions in fluorite veins, 335 Broken Hill, see New South Wales, Australia BROWN, P. E., see HARRISON, T. |  | | Journal (article/letter/editorial) | | (pomegranate) for the red color of its seeds. Grossular, also based on the Latin, is from Peter J. Modreski...the pale green color of the berry and of some grossular; but this name is actually predated in use by...now considered just a varietal term for orange grossular. Hessonite takes its meaning from the Greek ‘inferior’-meaning...mineralogist; and uvarovite is after Count s. s. Uvarov. Grossular and spessartine were formerly sometimes spelled...Connecticut (grossular), and Idaho (star garnet); and the state mineral of Connecticut. Garnet (grossular, variety |  | | Journal (article/letter/editorial) | | R C H 1984, VOL. 48, PP. 31-7 Uvarovite* and grossular from the Fengtien nephrite deposits, eastern Taiwan...Institute, 1 Tun Hwa South Road, Taipei 105, Taiwan ABSTRACT. Uvarovite and grossular, the former comparatively...enrichment in Cr, Be, Co, Y, Sb, and La over grossular. Associated minerals include nephrite, diopside...tremolite asbestos, zoisite, and clinozoisite. Grossular is reddish-brown; large crystals, dodecahedral...and chemically it is quite near the grossular end member. Grossular is considered to be formed from pneumatolysis |  | | Journal (article/letter/editorial) | | Tomintoul, Banffshire, lithiophorite, 618. Leverburgh, South Harris, omphacite, 61. Loch Don, Mull, plumbogummite... Pakistan Naranji Sar, Malakand, rodingite, grossular, hydrogrossular, sheridanite, 735. India Chikla...omphacite, 6I. Gongen-yama, Shikoku, omphacite, 6i. AFRICA Algeria Djebel Gustar, blende, 153. Egypt Angouria... augite, 67z. Vohiboly, grandidierite, 615. South Africa Bultfontein, Orange Free State, peridotite...xenoliths, 726; omphacite, 61. Lulu Kop, Palabora, Transvaal, magnesio-arfvedsonite, 317. Roberts-Victor mine |  | | Journal (article/letter/editorial) | | mineralization; it replaced garnet of the andradite-grossular series and pyroxene of the diopside-hedenbergite...replacing pyroxene. The magnetite zone located in the south-western part of the Komsomolsk ore district in highly...Novogorbuchinskoe deposit is associated with hedenbergite, grossular (Table II, 5577 a, b), and chlorite. It is the...minerals from the Argent lead-silver mine, Transvaal, South Africa: crocoite, vauquelinite, and a possible...east of Johannesburg in the Transvaal Province of the Republic of South Africa. A series of sub-parallel |  | | Journal (article/letter/editorial) | | Asbestos-bearing Penge Iron Formation, Eastern Transvaal, South Africa T. MIYANO1 AND N. J. BEUKES2∗ 1 INSTITUTE...BOX 524, AUCKLAND PARK, JOHANNESBURG 2006, SOUTH AFRICA RECEIVED AUGUST 15, 1996 ACCEPTED DECEMBER...petrology of the Penge Iron Formation of the Transvaal Supergroup, situated in the contact metamorphic...rocks at Penge and Mafefe, in eastern Transvaal, South Africa. The rocks are laterally equivalent to...vaal Supergroup The Penge Iron Formation of the Transvaal Supergroup is situated in the contact metamorphic |  | | Journal (article/letter/editorial) | | for.mula Ca,Cr,(SiO,),. It forms a series with grossular, a fact reflected in the common occurrence of...crystals in metamorphosed limestone xenoliths in the South Canyon district, Doiia Ana County. It has been tentatively...uvarovite for the western hemisphere as chromian grossular. Similar material has been reported from other...including Wakefield and Awantjish Townships and South Ham in Wolfe County. Several Scandinavian localities...from chrome deposits in the Bushveld Complex, South Africa (Frankel 1959). REFERENCES Bancroft, P. 1973 |  | | Journal (issue) | | upper mantle rock type, is made up chiefly of grossular-almandine garnet and omphacite--a green clinopyroxene...diamonds are characterized by the presence of orange grossular-almandine garnet, omphacite, pyrite, and less...the case of the Nazca Plate subducting beneath South America). Most diamonds form at the base of ancient...Cullinan diamond, discovered in 1905 at Kimberley, South Africa, holds the record as the world’s largest diamond...106 ct Cullinan diamond, found in Kimberley, South Africa, in 1905, is the world’s largest diamond ever |  | | Journal (article/letter/editorial) | | 995. Pengenna mine, St. Kew: meneghinite, 424. South Terras mine, St. Stephen-in Brannel: aerugite, xanthiosite...milarite, rhodizite, lvii. Shallowford Bridge, South ]lolton : meneghinite, 424. INDEX Yorkshire Turf...Simla Jhunjhunu district, Rajasthan: almandine, grossular, 1018. Andhra Pradesh Kondapalli: charnockite...Iwate prefecture: barium-orthoclase, 508. AFRICA West Africa Diko Abuja, Nassawara Nigeria: stolzite...Misoba, Maniema district: anthoinite, 995. Central Africa Kangankunde hill, Malawi : strontianitc, liii. |  | Kinnaird, Judith A., Hutchinson, D., Schurmann, L., Nex, P. A. M., de Lange, Renee (2005) Petrology and mineralisation of the southern Platreef: northern limb of the Bushveld Complex, South Africa. Mineralium Deposita, 40 (5) 576-597 doi:10.1007/s00126-005-0023-9 | Journal (article/letter/editorial) | | Platreef: northern limb of the Bushveld Complex, South Africa Received: 17 June 2004 / Accepted: 9 August...mineralised with PGE, Cu and Ni, between the Transvaal metasedimentary footwall or Archaean basement... University of the Witwatersrand, Wits2050, South Africa E-mail: kinnairdj@geosciences.wits.ac.za L....Platinum Ltd, 2 First Avenue, Mokopane 0600, South Africa are typically quartzites and hornfelsed banded...aeromagnetic and gravity data successively older Transvaal metasedimentary footwall units northwards and |  | | Journal (article/letter/editorial) | | were col lected at the Phalaborwa open pit in Transvaal. Due to the political situation in the country...been exported. Several dealers traveled from South Africa to the Tucson show with a few new finds. Among...2: Baddeleyite, Phalaborwa open pit, Transvaal, South Africa. Figure 1: Moraesite, Galileia, Minas...this mineral available for sale by the kilogram! SOUTH A F R I C A Pyrosmalite Bob Jenkins, an exploration...of the state has some interesting minerals. Just south of Pilar, the unusual minerals are found in the |  | | Book | | Sterling Publishing Company, Inc. 387 Park Avenue South, New York, N.Y. 10016 Original edition published...Limfjord/Denmark; Victoria/Australia; Papland/South Africa; Reunion island/Indian Ocean. 7< 30 Amber...Ontario/Canada; California, Colorado/USA; Madagascar; South Africa. Similar to: biotite, diaspore, astrophyllite...mountains, Saxony/Germany; Piemonte/Italy; Transvaal/South Africa; Madras/India; California, Arizona/USA...Saxony/Germany; Tirol/Austria; Urals/USSR; Quebec/Canada; South Africa; Zimbabwe. Similar to: palygorskite, 34 4 4 | | | Book | | by Sterling Publishing Company 387 Park Avenue South, New York, N.Y. 10016 Original edition published...Limfjord/Denmark; Victona/Austraha; Papland/South Africa; Reunion island lnd1an Ocean . 30 0 Amber...Ontario/Canada; California , Colorado/USA ; Madagascar; South Africa. Similar to: biotite, diaspore, astrophyllite...mountains, Saxony/Germany; Piemonte/ltaly; Transvaal/South Africa; Madras/lndia; California, Arizona/USA...Saxony/Germany; Tirol/Austria; Urals/USSR; Quebec/Canada; South Africa; Zimbabwe. Similar to: palygorskite, chlorite |
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Buffelsfontein chrome mine, Brits, Madibeng Local Municipality, Bojanala Platinum District Municipality, North West, South Africa