 | | Journal (article/letter/editorial) | | Amphibole Asbestos-bearing Penge Iron Formation, Eastern Transvaal, South Africa T. MIYANO1 AND N. J. BEUKES2∗...BOX 524, AUCKLAND PARK, JOHANNESBURG 2006, SOUTH AFRICA RECEIVED AUGUST 15, 1996 ACCEPTED DECEMBER...DECEMBER 4, 1996 The mineralogy and petrology of the Penge Iron Formation of the Transvaal Supergroup, situated...crocidolite- and amosite-bearing rocks at Penge and Mafefe, in eastern Transvaal, South Africa. The rocks are...succession in Griqualand West. Metamorphism at Penge apparently took place at 420–460°C and 2·6 ± 0·8 |  | | Report (issue) | | SURVEY OF SOUTH AFRICA COUNCIL FOR GEOSCIENCE GEOLOGICAL SURVEY OF SOUTH AFRICA MINERALOGY OF SOUTH AFRICA:... COUNCIL FOR GEOSCIENCE GEOLOGICAL SURVEY OF SOUTH AFRICA Scientific Editor R.D. Dixon Linguistic and...Council for Geoscience (Geological Survey of South Africa), 280 Pretoria Street, Silverton, Pretoria or........................... 69 5.1 Overview of South African Occurrences ..............................LAYEREDSUITE,BUSHVELDCOMPLEX.... 111 MINERALOGY OF SOUTH AFRICA: TYPE-MINERAL SPECIES AND TYPE-MINERAL NAMES |  | | Journal (article/letter/editorial) | | estimated that the risk for mesothelioma for miners of amosite is an order of magnitude lower than for miners...mesotheliomas in South Africa and concluded that crocidolite is far more mesotheliomagenic than amosite. The relative...miners and millers of amosite or crocidolite from the Transvaal region of South Africa. Timbrell (1983) argued...et al. 2015). Amosite is a commercial term derived from Asbestos Mines of South Africa, located in the...Pietersburg Asbestos Field, Limpopo Province, and Transvaal, South Africa. It is not a proper mineralogical |  | | Report (issue) | | ••• ••• •• • ••• ••• ••• 11 Union of South Africa •• • -· ' . • •• • •• ••• •• • 14 Canada...including tremolite, actinolite, crocidolite, amosite, and anthophyllite. Of these commercial varieties...impo1�ance to chi:ysotile come crocidolite and amosite . Tremolite , actinolite, and anthophyllite are...has been found in large quantities on]y in Soutl1 Africa, where it occurs in na1Tow interbedded cross-fibre...steam-pipe lagging, and for electrical insulation. Amosite is found in the north-eastern Transva.al and is |  | | Journal (article/letter/editorial) | | selected area diffraction patterns obtained on amosite (A), crocidolite (B) and chrysotile (C). Table...Chrysotile Chrysotile Anthophyllite Anthophyllite Amosite Amosite Tremolite Tremolite Actinolite Actinolite Crocidolite...Cassier mine, Canada. Yamabe mine, Hokkaido, Japan. South America. Unknown. Penge mine, South Africa. Penge...Penge mine, South Africa. Sue-machi, Fukuoka, Japan. lwate, Japan. Sekikawa-mura, Ehime, Japan. Ohgushi...Nagasaki, Japan. Kurumanmine. South Africa. Kurumanmine, South Africa. Kusatsu, Gunma, Japan. Honamimine |  | | Journal (article/letter/editorial) | | September 1965 No. 271 The thermal decomposition of amosite By A. A. HODGSON Cape Asbestos Fibres Limited,...Aberdeen [Read 17 September 1964] Summary. When amosite (fibrous grunerite, F%.sMgl.sSisO~(OH)~), is heated...of determining the chemically combined water in amosite and other minerals of similar composition is considered...known to occur only in the eastern Transvaal, South Africa, in metamorphosed banded ironstones of the Transvaal...W. T A Y L O R ON No detailed X-ray study of amosite has been reported, but Ghose and Hellner (1959) |  | | Journal (article/letter/editorial) | | wo]framite, 995. Pengenna mine, St. Kew: meneghinite, 424. South Terras mine, St. Stephen-in Brannel:...milarite, rhodizite, lvii. Shallowford Bridge, South ]lolton : meneghinite, 424. INDEX Yorkshire Turf...argentojarosite, li. WALES Benallt mine, Rhiw, Caernarvonshire: celsian, 508. Clogau mine, Dolgelly, ~ier.ionethshire:...ionethshire: tellurbismuth, 424. Vigra mine, Dolgelly, Merionethshire: tellurbismuth, 424. SCOTLAND Morar...e c h o s l o v a k i a (~eskoslovensko) Plavno mine, Krus'~ tlory, Bohemia: stannian andradite, 379 |  | | Journal (article/letter/editorial) | | Particles Lying on the Surface of Crocidolite, Amosite, and Chrysotile Fibers Alessandro Croce *, Aldo...International Cancer Control’s) crocidolite and amosite from South Africa and on UICC chrysotile from Canada. Under...zones, Raman spectra peculiar for crocidolite, amosite or chrysotile were recorded. When dark areas were...ordered on amosite than on crocidolite and chrysotile. From the exposed data, crocidolite and amosite fibers...fibers from South Africa, and chrysotile fibers from Canada, largely used in industry in the past, are characterized |  | | Journal (article/letter/editorial) | | [001] of ionthinned specimens of amosite (fibrous grunerite) from Penge,Transvaal and anthophyllitefrom...products are talc, serpentine and chlorite, and amosite alteration products approximate to iron analogues...However, our observations have mainly been on amosite (fibrous grunerite), a different type of asbestos...grunerite 78 B. A. CRESSEY E T AL. asbestos from Penge, Transvaal. In both specimens the asbestiform habit...Finland which is similar in appearance to the amosite, and also anthophyllite from Srndeled, Norway which |  | | 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...785. Alunite, lsrael, derived from pyrite, 84. Amosite, Transvaal, anal., opt., thermal decomposition...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 |  | | Report (issue) | | Rhodesia Tanganyika ... Uganda .. .. Union of South Africa Bechuanaland .. Swaziland . . .. Canada .. ...their fibres. Six different varieties, actinolite, amosite, anthophyllite, chrysotile, crocidolite, and tremolite...have some commercial applications, but of these amosite, chrysotile, and crocidolite greatly exceed the...countries, Canada, Southern Rhodesia, and the Union of-South ·Afrio_a , are in the British Empire. Canada is...and the Union of Sout_h Africa possesses the only commercial deposits of amosite and crocidolite. The principal |  | | Book (volume) | | Papers and Discussions Volume I , I JOHANNESBURG SOUTH AFRICAN INSTITUTE OF MINING AND METALLURGY 1961... 01", ~TALLUf>iYY. © Copyright 1961 by The South African Institute of Mining and Metallurgy Ext'racts...I (1v DEC 196f Printed in t!te Republic of South Africa by Hortors Limited, Johannesburg V r. 1 The...and n1anagement of the gold mining industry in South Africa -C. B. ANDERSON . . . . . . . . . page r J ... ( 2. The economy of the Union of South Africa-W. J. BusSCI-IAU 9 3. An introduction to the physical |  | | Journal (article/letter/editorial) | | the Transvaal crocidolite contains intergrown amosite fibres, and suggests that the Bolivian crocidolite...map of South Africa shows that the outcrop of the Transvaal System extends in a n o r t h south line from...close similarity to the Banded Ironstones of South Africa. The Australian mines account for some 12 000...the world's annual output of blue asbestos, the South African mines for some 90 000 tons, while in contrast...fine silky fibre of a paler blue colour than its South African counterpart. The origin, geology, chemical |  | | Journal (article/letter/editorial) | | Crocidolite (fibrous riebeckite) from Westerberg, South Africa. This is similar to the specimen described as...approximate formula, ~a2Fel~Fe21 Mg89 Amosite (fibrous grunerite) from Penge, Transvaal. This had the approximate...), tremolite (Trem.), crocidolite (Croc.), and amosite (Am.) TABLE I. Site occupancy and dehydroxylation...temperature for four amphibole types. Crocidolite Amosite Tremolite Anthophyllite Dehydroxylation temperature...1959) may be applied, with little change, to the amosite used in this work. The chemical compositions of |  | | Journal (article/letter/editorial) | | under the name "amosite," Peacockledescribedin 1928samplesof asbestos from South Africa, which he classifiedas...1r', (1.6454) is actually N^? 9. "Amosite," Kalkfontein, S. Africa. peacock, M. A.: Am. Mineral., vol...index is an average of 1[_. and I[o. 10. "Amosite," Penge, Transvaal. Peacock, M. A. : Ioc. cit The lower |  | | Book | | Guatemala Hungary Italy Japan Poland Portugal Singapore South Korea Switzerland Thailand Turkey Ukraine Vietnam...Association SAAPAC South African Asbestos Producers’ Advisory Committee SACSIR South African Council for...measurable layer of asbestos dust on the surrounding district. Within weeks of the collapse of the Towers, asbestos...includes, inter alia, two important commercial grades—amosite (brown) and crocidolite (blue)—which in the twentieth...twentieth century were mainly mined in South 1 P.J. Landrigan et al., ‘Health and Environmental Consequences |  | | Journal (article/letter/editorial) | | minerals Article Effect of Grinding on Chrysotile, Amosite and Crocidolite and Implications for Thermal Treatment...UICC (Union for International Cancer Control) amosite and standard UICC (Union for International Cancer...enthalpy of dehydroxylation (∆Hdehy ) of chrysotile, amosite and crocidolite. This permits us to completely...the raw samples. Keywords: asbestos; chrysotile; amosite; crocidolite; grinding 1. Introduction The commercial...five fibrous amphiboles (actinolite asbestos, amosite, anthophyllite asbestos, crocidolite and tremolite |  | | Journal (article/letter/editorial) | | country should he on view in the “city of gold.” South Africa is not well known for its institutional or statefunded...treasures of the earth. not only from South Africa but also from southern Africa as a whole and other regions...Mines and the Museum of the Geological Society of South Afiicil (Kennedy 1970). The Chamber of Mines collection...secretary and treasurer of the Geological Society of South Africu.) Several years later, in 1904, the collection...mammal-like reptiles from the famous Karoo region of South Africa, Cretaceous ammonites, Permian and Triassic |  | | Catalog/List | | PHONE (406) 363 3601 A.JOITE CRYSTALS New Cornelia mine, Ajo, Pima County, Arizona. Hydrated copper aluminum...and $5. 9 \ ANHYDRITE CRYSTALS Sonderhausen, South Harz, Germany. Calcium sulfate. Single sharp rectangular...and S7. 50. BOURNONITE COGWHEEL CRYSTALS Keystone mine, Crested Butte, Colorado. A lead copper antimony... T/N $. 50, $1. 00 AMOSITE Penge mine, Cape Province, Republic of South Africa. A basic iron magnesium...(3½") grayish-green fibers from veins in slate. Amosite is a long-fibered brittle asbestos generally placed |  | | Book | | Struik Nature (an imprint of Penguin Random House South Africa (Pty) Ltd) Reg. No. 1953/000441/07 The Estuaries...Century City, 7441 PO Box 1144, Cape Town, 8000 South Africa Visit www.randomstruik.co.za and join the Struik...published edition, 2015: Penguin Random House South Africa (Pty) Ltd Publisher: Pippa Parker Managing editor:...Hatfield Campus, University of Pretoria Pretoria, South Africa Dr Lynnette Greyling Department of Geological...Town Private Bag X3 Rondebosch 7701 Cape Town, South Africa Note: The authors and the publishers cannot |  | | Journal (article/letter/editorial) | | G r u n e r i t e a s b e s t o s (var. amosite) from Penge, Transvaal, contains lamellae consisting...of grunerite asbestos (var. amosite) from the banded ironstones at Penge, Transvaal. Both were fibrous...anthophyllite, but which we have not observed in amosite. Incoherent termination of one lamella of multiple...the associated holes. We have also found it in amosite. It is to be noted that two mechanisms for such...:title>Grunerite asbestos (var. amosite) from Penge, Transvaal, contains lamellae consisting | | | Book | | Struik Nature (an imprint of Penguin Random House South Africa (Pty) Ltd) 1953/000441/07 Reg. No. The Estuaries...Century City, 7441 PO Box 1144, Cape Town, 8000 South Africa Visit www.randomstruik.co.za and join the Struik...published edition, 2015: Penguin Random House South Africa (Pty) Ltd Publisher: Pippa Parker Managing...Hatfield Campus, University of Pretoria Pretoria, South Africa Dr Lynnette Greyling Department of Geological...Town Private Bag X3 Rondebosch 7701 Cape Town, South Africa Note: The authors and the publishers cannot |  | Baron, Fabien, Petit, Sabine, Pentrák, Martin, Decarreau, Alain, Stucki, Joseph W. (2017) Revisiting the nontronite Mössbauer spectra. American Mineralogist, 102 (7) 1501-1515 doi:10.2138/am-2017-1501x | Journal (article/letter/editorial) | | [4]Fe3+]-(3[6]Fe3+), and [2Si 2[4]Fe3+]-(3[6]Fe3+); and (3) the local environment around a [4]Fe3+, i.e., [3Si]-(2[6]Fe3+)...proposed an alternative interpretation based on the local tetrahedral environments around cis [6]Fe3+ cations...of the synthetic nontronites Proportion of the local cationic environments around a Fe3+ (%) [6]Fe3+...2016). Proportions (in atom% of total Fe3+) of each local cationic environments neighboring a Fe3+ cation...text). The uncertainty in the proportion of the local cationic environments was determined using 200 simulations |  | | Report (volume) | | industry Modern asbestos uses MAJOR GEOLOGICAL Amosite OCCURRENCES and crocidolite 284 286 287 OF AMPHIBOLE...AMPHIBOLE ASBESTOS in ironstones • • . • of South Africa Transvaal asbestos field Cape asbestos field...Anthophyllite asbestos Tremolite asbestos Actinolite, amosite, and crocidolite MAJOR OCCURRENCES OF CHRYSOTILE...ASBESTOS ASBESTOS . . . . . 296 of southern Africa OF ASBESTOS to asbestos Production Geology Asbestos...Epidemiology . . . . . • . . .. 291 292 294 295 296 South Africa and Swaziland Zimbabwe HEALTH HAZARDS 288 |  | | Journal (article/letter/editorial) | | associated with amphibolites in the Shueretsky district of Karelia, and have been described by Ignatiev...kyanite-staurolite and staurolite-gedrite gneisses of the Oslo district, Broch (5) has commented upon the absence of association... (31) Mesabi, (32) Terbeostrov (Table I), (40) Penge, Transvaal. The broken lines y refer to approximate...these (30 Gedres, 31 Mesabi, 40 Penge, Transvaal), the last, an " amosite " appears the most satisfactorily...associated with amphibolites in the Shueretsky district of Karelia, and have been described by Ignatiev |
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Penge Mine, Fetakgomo Tubatse Local Municipality, Sekhukhune District Municipality, Limpopo, South Africa