 | | Report (issue) | | Clad), and probably middle-Tertiary in West Sarawak, Malaysia (Bau) according to Wolfenden (1965). Several...distinctly yellow (in thin section), isotropic, andradite cores and colorless, anisotropic rims that are...abundant sulfide(s) and (or) magnetite. Some deposits (Bau) show lateral gradation and subsequent replacement...diopside-hedenbergite, and finally grossular-andradite with or without retrograde tremolite-actinolite-epidote-chlorite...flooded with colloform-banded quartz and jasperoid (Bau) all distal to quartz-and calcite-flooded, calc-silicate |  | Xie, Guiqing, Mao, Jingwen, Richards, Jeremy P., Han, Yingxiao, Fu, Bin (2019) Distal Au Deposits Associated with Cu-Au Skarn Mineralization in the Fengshan Area, Eastern China. Economic Geology, 114 (1) 127-142 doi:10.5382/econgeo.2019.4623 | Journal (article/letter/editorial) | | characterized by diopside (Di80–99Hd1–19) and andradite (Ad87–100Gr0–13) in the exoskarn (Zhao et al....Disseminated chalcopyrite overprinting diopside (Di)-andradite (Ad) skarn at Fengsandong (sample FS 9-4). (D)...(D) Disseminated molybdenite overprinting andradite-diopside skarn at Fengsandong (sample FS 9-5). (E)...Chalcopyrite (Ccp)-pyrite-calcite (Cal) replacing andradite (Ad)-diopside (Di) skarn at Fengsandong (PPL,...coexisting with chalcopyrite and pyrite replacing andradite skarn at Jilongshan (reflected PPL, sample JL |  | | Report (volume) | | minerals. Gangue minerals typically include garnet (andradite-grossular), pyroxene (diopside-hedenbergite),...million tonne, 10.45 g/t Au), and the deposit at Bau, Malaysia (2.4 million tonnes), however, contain more...Cu-Mo mineralization at depth, and the deposit at Bau, Indonesia, that includes a large component of sedimenthosted...Colorado), and probably middle Tertiary in West Sarawak, Malaysia (Bau), according to Wolfenden (1965). Several...assemblages in Au-bearing skarn include garnet (andradite-grossular), pyroxenes (diopsidehedenbergite), |  | | Journal (article/letter/editorial) | | is mainly composed of vesuvianite, grossular andradite series garnet, diopside, and chlorite. The Cr2O3...the presence of chromium and titanium; 2) the andradite component is always greater than 40%; 3) the morimotoite...garnet in vein rodingite also belongs to the andradite–grossular series, and scarcely contains uvarovite...of garnet. (A) Grossular-andradite-uvarovite series. (B) Grossular-andradite-morimotoite series. Data... Rodingite with Ti and Cr rich vesuvianite - 121 - andradite series garnet, diopside and chlorite. Tiny vesuvianites |  | | Report (Issue volume) | | Photogeological Divisions; more recently a Special Surveys Division was added for the purpose of carrying out comprehensive...the demand for the work of the Special Surveys Division. Economic mineral surveys have been carried out...September respectively and joined the Special Surveys Division. Mr. R. B. Evans, Senior Scientific Officer, Mr...June respectively, and joined the Geophysical Division. Mr. J. A. W. Eldred, Scientific Officer, Mr....Tanganyika 3, Jamaica 2, Uganda 2, Britisl1 Guiana I, Sarawak 1� Sierra Leone 1. 1965 19 British Guiana 2 |  | Beddoe-Stephens, B., Shepherd, T. J., Bowles, J. F. W., Brook, M. (1987) Gold mineralization and skarn development near Muara Sipongi, West Sumatra, Indonesia. Economic Geology, 82 (7) 1732-1749 doi:10.2113/gsecongeo.82.7.1732 | Journal (article/letter/editorial) | | intrusionsare of I-type affinity. The skarnsrange from andradite-diopsiderocksto grossular-idocrase-wollastonite-diopside...022 3.105 3.031 3.001 2.984 Mole percent Andradite Grossular 22.9 73.8 37.4 60.4 23.4 72.0 19...0.0 79.3 18.9 9194-1 9338-2 Mole percent Andradite Grossular 65.4 27.2 97.2 0.0 36.9 56.6 26...composedalmostentirely of yellow-browngarnet Andradite skarnssimilar to those at this locality TABLE3...SeeTable 2 for localityabbreviations Percent andradite Percenthedenbergite PSM Includesgersdorfite |  | | Journal (article/letter/editorial) | | (48 to 55 mol %), grossular (25 to 35 mol %), andradite (7 to 13 mol %) and, notably, blythite (4 to 9...of oxic sea water (e.g., Elderfield et al., 1981; Bau et al., 1996). The cerium responsible for the positive...due to conditions of low fluid/rock ratios (e.g., Bau, 1993). In particular, the preservation of sedimentary...Gd/Gd* and Pr/Pr* were calculated as defined in Bau and Dulski (1996). 157 SOUTH AFRICAN JOURNAL OF...000 3.000 3.000 3+ Fe 3+ 2+ Mn 2+ Mol% andradite 7.6 12.0 9.8 12.5 11.1 9.7 7.2 9.6 7 |  | Xiao, Xin, Zhou, Tao-fa, White, Noel C., Zhang, Le-jun, Fan, Yu, Wang, Fang-yue, Chen, Xue-feng (2018) The formation and trace elements of garnet in the skarn zone from the Xinqiao Cu-S-Fe-Au deposit, Tongling ore district, Anhui Province, Eastern China. Lithos, 302. 467-479 doi:10.1016/j.lithos.2018.01.023 | Journal (article/letter/editorial) | | of garnets range from Al-rich andradite (Adr63-81Grs19-47) to andradite 1 ACCEPTED MANUSCRIPT (Adr67-98Grs2-33)...patterns. Al-rich andradite in proximal skarn has small Eu anomalies and moderate ∑ REE. Andradite from distal...(grossular) and the proximal exoskarn (Al-rich andradite), and fluid and rock chemistry (surface adsorption...which consists of grossular (Ca3Al2Si3O12) and andradite (Ca3Fe2Si3O12) endmember components, and the variations...they have similar compositions and are Al-rich andradite (Adr63-81Grs19-47); they have characteristic isotropic |  | | Journal (article/letter/editorial) | | the Xinqiao stratiform orebody range from pure andradite (And100) to And 50Gro46, and can be divided into...are grandite, whilst the Grt2 rims are mainly andradite with some grandite zones. Grandite is enriched...concentrations with negative Eu anomalies, whereas andradite is HREE-depleted, and displays high ΣLREE/ΣHREE...attention was paid to the Fe-rich members (e.g., 3 andradite), which are also common in many skarn systems...formed from grossular – andradite solid solution and range from pure andradite And 100 to And50Gro 46 |  | | Book (edition) | | ..................... 946 IV.3. North Borneo (Sarawak, Sabah, Brunei) .................................Proc. AAPG-GSM Int. Conf. 1994, Bull. Geol. Soc. Malaysia 37, p. 363-394. (online at: https://gsmpubl.files...mineralisation in Southeast Asia. Bull. Geol. Soc. Malaysia 40, p. 77-111. (online at: https://gsmpubl.files...of SE Asia, Kuala Lumpur 1972, Bull. Geol. Soc. Malaysia 6, p. 11-16. (online at: www.gsm.org.my/produ...Guntoro, A. (1999)- A new propose of geological division in the Indonesian archipelago from tectonic evolution |  | | Journal (article/letter/editorial) | | most common, found in ores and skarns containing andradite-rich garnet, is convex-up in the light REE (LREE)...crystals of calcsilicate minerals, principally andradite, with amounts of LREE controlled by the difference...deposits in carbonate rocks and adjacent silicates. Bau (1991) concludes that REE systematics in rocks are...hydrothermal environments have dealt with active systems. Bau (1991), Klinkhammer et al. (1994), Mills and Elderfield...attribute to leaching of plagioclase in basalt. Bau (1991) found that low to medium temperature hydrothermal |  | | Journal (article/letter/editorial) | | deposit range from Adr30Grs70 to almost pure andradite (Adr>99). Fe-rich garnets (Adr>90) are isotropic...data (e.g., Hmixing) in gros1 þ1 1 þ1 sular–andradite mixtures suggest preferential incorporation of...of 20 nA, a beam diameter of 5 lm, and using andradite (Si, Ca, and Fe), spessartine (Mn and Al), diopside...(Grs38Adr59Alm3) overgrowth by later isotropic andradite—Adr (Adr98Alm2) that fills intragranular open space...of that observed in (e). Here early isotropic andradite—Grs3Adr97 garnets are fractured and overprinted |  | | Journal (article/letter/editorial) | | ELEMENTS, INCLUDING THE REE, IN GEM-QUALITY GREEN ANDRADITE FROM CLASSIC LOCALITIES Rosangela BOCCHIO§ Dipartimento...Milan, Italy Abstract Crystals of gem-quality andradite (variety “demantoid”) from Val Malenco, Italy...pure andradite (Adr ≥ 98 mol.%) to members of andradite–uvarovite (Adr81–96Uv3–18) or andradite–grossular...Namibia, showing a composition varying from pure andradite to almost pure grossular (Adr11Grs89). All the...the samples showing a composition close to pure andradite exhibit LREE-enriched and HREE-depleted patterns |  | Cabral, A. R., Tupinambá, M., Lehmann, B. (2013) Spessartine in compact-hematite rock, southern Serra do Espinhaço, Minas Gerais, Brazil, and genesis of compact hematite. Mineralogical Magazine, 77 (8) 3197-3215 doi:10.1180/minmag.2013.077.8.12 | Journal (article/letter/editorial) | | and ‘‘blythite’’ (up to ~5 mol.%), as well as andradite (4 7 mol.%); pyrope and almandine endmembers are...3 }[Mn 2 ] (Si3)O12 (Grew et al., 2013). Some andradite is 3201 present in the range of 4 7 mol.%. Almandine...vary between ~1.3 and 2.3 (calculated according to Bau and Dulski, 1996; Eun*[0.67Smn + 0.33Tbn] 1, where...generally enriched in Fe, thus it is almandine or andradite (e.g. Haase, 1982; Mücke, 2003; Klein, 2005);...garnet of the compact hematite has <10 mol.% andradite (Table 2), but its Mn endmember components amount |  | | Journal (article/letter/editorial) | | (Figs. 2B; 5A), characterized by diopside and andradite, the hydrous retrograde alteration stage which...porphyry (Fig. 2F). In the skarn ore, diopside and andradite are overprinted by retrograde 111 hydrous minerals...2018), the skarn 252 deposits of the Bau district, Malaysia (Percival et al., 2018), the Río Narcea...Zarshuran, Iran (Daliran et al., 2018), the Bau district, Malaysia (Sillitoe 267 and Bonham, 1990; Percival...to epizonal intrusions, Bau district, island of Borneo, Sarawak, east Malaysia. Rev. Econ. Geol. 20, 259–297 |  | | Catalog/List | | County blue coating on , Arizona U.S.A) Cl92 ANDRADITE location. brown crystals on Mine near Okehampton...matrix. with lx2 (Jos area f3.50 about Utah andradite f2 Plateau, spots and (Cr0/4) Northcrn (Pare...silvery on 2xl.5ins mexico) f5 1 Mine, Bau, Sarawak in 3/4 x3/4 lK octahedral Borneo) ins |  | Zhai, De-Gao, Liu, Jia-Jun, Zhang, Hong-Yu, Wang, Jian-Ping, Su, Li, Yang, Xi-An, Wu, Sheng-Hua (2014) Origin of oscillatory zoned garnets from the Xieertala Fe–Zn skarn deposit, northern China: In situ LA–ICP-MS evidence. Lithos, 190. 279-291 doi:10.1016/j.lithos.2013.12.017 | Journal (article/letter/editorial) | | phenomenon in grandite (grossular Ca3Al2Si3O12–andradite Ca3Fe2Si3O12) garnets and grossular (Ca3Al2Si3O12)–almandine...concentrations of oscillatory zoning patterns in andradite–grossular garnets from the Xieertala Fe–Zn skarn...grossular–andradite (grandite) solid solution and are rich in Fe. The garnets are dominated by andradite and...general, garnet compositions range from almost pure andradite And94Gro4 to And66Gro34 with pyralspite less than...deposits. Abbreviations: Gro — grossular; And — andradite; Pyralspite — (pyrope + spessartine + almandine |  | | Journal (article/letter/editorial) | | vesuvianite is a skarn from the Bau mining district, Sarawak, Malaysia (15.7 wt. % Sb203; Bradshaw 1972)...This V-rich margin is characterized by a high andradite c o m p o n e n t and a lack of F (Table 4). Harris...respective presence of V- a n d Cr-rich muscovite. This division is also manifested by o t h e r transition metals...An antimonian idocrase from the Bau mining district, Sarawak, Malaysia. Mineral Mag 38:894-896 Burk R |  | Ranjbar, S., Tabatabaei Manesh, S. M., Mackizadeh, M. A., Tabatabaei, S. H., Parfenova, O. V. (2016) Geochemistry of major and rare earth elements in garnet of the Kal-e Kafi skarn, Anarak Area, Central Iran: Constraints on processes in a hydrothermal system. Geochemistry International, 54 (5) 423-438 doi:10.1134/s0016702916050098 | Journal (article/letter/editorial) | | form, September 24, 2015 Abstract—Grossular-andradite (grandite) garnets, precipitated from hydrothermal...(granditic) composition birefringent core that its andradite content based on microprobe analysis varies between...composition, and the isotropic rim which its andradite content regarding microprobe analysis ranges between...crystals of calcsilicate minerals principally andradite with amounts of LREE controlled by the difference...deposits (Clechenko and Walley, 2003). Grossular-Andradite (grandite) garnets with oscillatory zoning are |  | | Journal (article/letter/editorial) | | Formation in the geologic map of Virginia (Virginia Division of Mineral Resources, 1993; Fig. 1B), Owens and...are dominated by spessartinealmandine-grossular-andradite components [end members calculated using the spreadsheet...those in sample BP10-2 are primarily spessartine-andradite along with some skiagite (Fe2+3Fe3+2Si3O12) component...component. Those in sample BP11-43 are dominated by andradite (Ca3Fe3+2Si3O12) and calderite (Mn2+3Fe3+2Si3O12)...Reference REE data for ancient hydrothermal deposits (Bau and Dulski, 1996; Peter and Goodfellow, 1996; Grenne |  | | Catalog/List | | NATIVE ARSENIC good rich minor Stibnite and micro Sarawak Borneo) f22 B) similar 2.5 x 2.5 xl.5 Quartz lined...thin terminated 8 15 clear, matrix with near Bau on 3x2 ElO yellowish matrix. Province, crystal...smaller piece with large lx2ins flO 104 105 ANDRADITE Andradite in 2x2x3ins matrix crystals. (Pribram in |  | | Catalog/List | | feldspar ALSTONITE Fallowfield Mine, Northumberland ANDRADITE Grua. Oppland Norway 5 10 36 White masses in matrix...lx2 £5 2x2 £10 2x3£15 Gamet ½" £3 ALTHAUSITE ANDRADITE Benallt Mine,Lleyn ,Wales Modum, Buskerud,Norway...Norway 975 44 Brown-purple areas in matrix Andradite is orange bro\\11 with pale pink, Celsian as sugary...garnet group ALUMINITE Newhaven Sussex, England ANDRADITE Franklin New Jersey USA SO 12 Pure hard white...AlS0/4 lx2 £5 2x2 £10 -----------------------ANDRADITE 34 Railway culling near Creslon. Wyoming ,U.S |  | | Journal (article/letter/editorial) | | yellow titanite crystals (up to 0.5 cm), black Ti-andradite garnet (up to 0.5 cm) and translucent tabular...contain euhedral titanite, phlogopite, apatite, andradite, sanidine, pyrochlore and anhedral zircon. Single...anomalies (Y/Ho = 22.5 – 27.9; Fig. 5b). 5.4. Andradite Backscattered electron observations of NFT garnet...Nevertheless, all analysed garnets are Ti-rich andradite with 32-33 wt.% CaO and SiO2, 24 wt.% FeO, 7.5-8...references therein). The relationship between Ti- lP andradite and clinopyroxene with Tschermaks essenite-type |  | Malo, M., Moritz, R., Dube, B., Chagnon, A., Roy, F., Pelchat, C. (2000) Base Metal Skarns and Au Occurrences in the Southern GaspeAppalachians: Distal Products of a Faulted and DisplacedMagmatic-Hydrothermal System along the Grand Pabos-Restigouche Fault System. Economic Geology, 95 (6) 1297-1318 doi:10.2113/gsecongeo.95.6.1297 | Journal (article/letter/editorial) | | Mid-Patapédia from Williams-Jones (1982). Ad = andradite, Alm = almandine, Di = diopside, Gr = grossularite...composition intermediate between grossularite and andradite and plot in the compositional field of both Cu-...1315 1316 MALO ET AL. that of the Bau district in Malaysia (Sillitoe and Bonham, 1990) are recognized...metal skarn and Au prospects as is the case for the Bau district, but the analogy of the types of mineralization...drew attention to the analogy between the Bau district in Malaysia and the Carlin, Battle MontainEureka, |  | | Journal (article/letter/editorial) | | handling: T. Wagner N. F. Jansson (*) : R. L. Allen Division of Geosciences and Environmental Engineering,...Boliden Mineral data. Display depth ±20 m. Mole % andradite (Adr) in garnet and hedenbergite (Hd) and johannsenite...36 Almandine 3.41 1.42 Grossular 18.07 23.37 Andradite 75.08 74.13 Calderite – – Khoharite – – Skiagite...associated with the clinopyroxene-rich skarns. The andradite versus grossular component in garnets generally...aggregates of Di55Hd43Jhn2-Adr86Grs12Ep-Cam. Andradite growth bands in garnet with retrograde alteration |
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