cassiterite
From: The Columbia Encyclopedia, Sixth Edition
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Date: 2008
cassiterite , heavy, brown-to-black mineral, tin oxide, SnO 2 , crystallizing in the tetragonal system. It is found as short prismatic crystals and as irregular masses, usually in veins and replacement deposits associated with granites. Since it is hard, heavy, and resistant to weathering, it often concentrates in alluvial deposits derived from cassiterite-bearing rocks. It is the principal ore of tin and is mined in many countries; the most important sources are Malaysia, Thailand, China, Indonesia, Bolivia, and Russia. Except for Bolivia, nearly all of this production is from alluvial deposits.
Author not available, CASSITERITE.,
The Columbia Encyclopedia, Sixth Edition 2008
The Columbia Encyclopedia, Sixth Edition. Copyright 2008 Columbia University Press
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Related articles from HighBeam Research:
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Cassiterite prices rocket
The Press; 8/9/2004; 63 words;
... Democratic Republic of Congo break up and bag raw chunks of cassiterite, the base element of tin, which is at a 15- year high on ... About 10 flights transport about $US50,000 ($NZ76,000) in cassiterite daily from the forests of eastern Congo ...
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XUEBAODING: Pingwu County, Sichuan Province, China
Mineralogical Record; 1/1/2005; Ottens, Berthold; 3562 words;
... scheelite crystals associated with large cassiterite crystals and with tabular beryl have ... years. Before that, the scheelite and cassiterite found here were treated merely as ... the quartz veins neither scheelite, cassiterite or beryl appear, but in fissures separated ... wall-lining, and scheelite, beryl ...
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Famous mineral localities: the Erongo Mountains Namibia.(Cover story)
The Mineralogical Record; 9/1/2006; Cairncross, Bruce Bahmann, Uli; 19347 words;
... and other important species such as cassiterite, ferberite, metanovacekite, uranophane ... and other important species such as cassiterite, ferberite and metazeunerite. These ... from the early 20th century. One is a cassiterite collected in 1915 and presented to ... provided descriptions, diagrams and ...
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Xuebaoding: Pingwu County, Sichuan Province, China.
The Mineralogical Record; 1/1/2005; Ottens, Berthold; 3662 words;
... scheelite crystals associated with large cassiterite crystals and with tabular beryl have ... years. Before that, the scheelite and cassiterite found here were treated merely as ... the quartz veins neither scheelite, cassiterite or beryl appear, but in fissures separated ... wall-lining, and scheelite, beryl ...
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Congo's Tin Miners Suffer as Others Gain; Government Troops Oversee Booming Trade
The Washington Post; 12/11/2005; Anjan Sundaram; 822 words;
... Matiya abandoned his fields to dig for cassiterite, the main ore of tin. After a two-day ... least I earn something. If there were no cassiterite, I would have no job," he said, spitting ... from the civil war still controlled the cassiterite trade in this region. Government troops ...
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Tin deposits at Prebuz and Rolava in the Krusné hory / Erzgebirge, Czech Republic: classic localities, new challenges
Journal of the Czech Geological Society; 1/1/2005; Rojík, Petr; 4911 words;
... Skvor 1960), Rolava - East (mining maps of the company Zinnbergbau Sudetenland ... centres mineralized by veinlets with cassiterite, which continued to an unknown depth ... Veins associated with greisens 4.1. "Cassiterite strings" ("Graupenschnren") This term ... denotes coarse-grained aggregates of ...
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Stannite: Freiberg, Saxony, Germany.(CONNOISSEUR'S CHOICE)
Rocks & Minerals; 11/1/2006; Cook, Robert B.; 2049 words;
... overwhelmingly dominant ore mineral, cassiterite (covered previously in this column ... unusual series of tin deposits with cassiterite, fluorite, and chrysoberyl in the York ... cm across were found in 1911 in vuggy cassiterite-rich ore in the Salvadora vein at Llallagua ...
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The Krásno Sn-W ore district near Horní Slavkov: mining history, geological and mineralogical characteristics/Sn-W rudní revír Krásno u Horního Slavkova - historie tezby, geologická a mineralogická charakteristika
Journal of the Czech Geological Society; 1/1/2006; Beran, Pavel; Sejkora, Jirí; 18806 words;
... event as the ore minerals, especially cassiterite, precipited also later together with ... accompanied by greisenization and cassiterite occurs also in altered granite. However ... overlapping with greisenization, but some cassiterite was deposited after the complete evolution ... The gap between ...
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&type=1 "The Independent (London, England)")
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Cover Story: Greed in a time of cholera; To survive, the people of eastern Congo have a choice: either to risk deadly diseases mining minerals for rebel soldiers, or flee into the jungle. Kate Holt and Sarah Hughes report on how an entire population has been enslaved - and abandoned by the West.(Features)
The Independent (London, England); 9/21/2004; Holt, Kate; 1949 words;
... these ordinary-looking sacks contain cassiterite - the expensive mineral ore from which ... Bashima contracted cholera working in the cassiterite trade. I arrived here this morning from ... walked for two days with my load of cassiterite to reach the town and sell it. I was ...
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Famous mineral localifies: Llallagua, Bolivia.
The Mineralogical Record; 3/1/2006; Hyrsl, Jaroslav Petrov, Alfredo; 16028 words;
... as well as sphalerite and prismatic cassiterite. Lustrous, well-formed crystals have ... It has also been found rarely on cassiterite crystals in vuggy tin ore. The triclinic ... are sporadically found on quartz and cassiterite. Very beautiful greenish blue to bright ... and radial aggregates on quartz and ...
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Famous mineral localities: Cerro Rico de Potosi, Bolivia.(includes related article on the discovery of the Potosi mines and rule of Captain Caravajall)
The Mineralogical Record; 1/1/1999; Wilson, Wendell E. Petrov, Alfredo; 12047 words;
... probably began with quartz, pyrite and cassiterite, followed by stannite and chalcopyrite ... compact masses with pyrite, quartz and cassiterite in the Santa Rita adit, and give an ... 1955) reported barite crystals with cassiterite from the Rosario mine near the peak ...
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&type=1 "The Cincinnati Post (Cincinnati, OH)")
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CONGO'S TIN MINERS SEE LITTLE REWARD.(News)
The Cincinnati Post (Cincinnati, OH); 12/28/2005; 492 words;
... Matiya abandoned his fields to dig for cassiterite, the main ore of tin. After a two-day ... least I earn something. If there were no cassiterite I would have no job, he said, spitting ... from the civil war still controlled the cassiterite trade in this region. Government troops ...
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A Guide to Mineral Localities in Bolivia.
The Mineralogical Record; 11/1/2001; Petrov, Alfredo Smith, Bill Smith, Carol; 11867 words;
... on mineral labels or references, or on maps available in U.S. libraries. The sections ... Salvadora 2 Aiquile See Santa Marta Alasca Cassiterite, pyrrhotite, scheelite Alcacoya Stibnite ... Arsenopyrite, boulangerite, canfieldite, cassiterite, cerussite, galena, (*) potosiite, pyrite ... Santa Barbara ...
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Tin sources for prehistoric bronze production in Ireland.
Antiquity; 9/1/1994; Budd, P. Gale, D. Ixer, R.A.F. Thomas, R.G.; 4531 words;
... 1979) argued that abraded crystals of cassiterite (Sn[O.sub.2]) were volumetrically as ... quite substantial quantities' and that cassiterite was probably present in the oxidized ... gold ores The primary tin minerals are cassiterite and complex copper-iron-tin- and, possibly ...
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Supergene minerals at the Huber stock and Schnöd stock deposits, Krásno ore district, the Slavkovský les area, Czech Republic/Supergení minerály lozisek Huberova a Schnödova pne, rudní revír Krásno, Slavkovský les, Ceská republika
Journal of the Czech Geological Society; 1/1/2006; Sejkora, Jirí; Ondrus, Petr; Fikar, Miroslav; Veselovský, Frantisek; Et al; 13661 words;
... quartz with decomposed chalcopyrite, cassiterite and arsenopyrite at the Huber open pit ... oxy-hydroxides and encloses relics of weathered cassiterite. The mineral was identified by X-ray ... gangue fractures at the Huber open pit. Cassiterite, arsenopyrite, chalcopyrite and bornite ...
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