 | | Report (issue) | | Twinnite Pb(Sb, As)2S4 c 2001-2005 Mineral Data Publishing, version 1 Crystal Data: Triclinic, probable;...(50), 3.91 (50), 2.689 (50), 2.645 (50) Chemistry: Pb Sb As S (1) 41 28 11 23 (2) 39.3 28.1 8.9 23.7 (3)...baumhauerite, realgar, orpiment, cinnabar, fluorite, quartz (Novoye, Kyrgyzstan). Distribution: In Canada,...the Hemlo gold deposit, Thunder Bay district, Ontario. In France, from the Jas Roux deposit, 10 km east...Chapelle-en-Valgaudemar, Hautes-Alpes. At the Rujevac Sb–Zn–Pb deposit, western Serbia. From Novoye, Khaydarkan, Fergana |  | | Report (issue) | | 2.75 (80), 2.67 (80), 3.79 (60) Chemistry: Pb Fe Cu Ag Sb Bi S (1) 42.6 35.5 20.9 (2) 41.76 0.01 0...to Pb4.10 Sb5.82 S13.00 . (2) Malé Železné deposit, Slovakia; by electron microprobe, average of six...plagionite, stibnite, sphalerite, galena, pyrite, quartz, calcite. Distribution: In the USA, in Nevada,...Tatra Mountains, Slovakia. At the Rujevac Sb–Zn–Pb deposit, western Serbia. From Săsar, Hondol, Romania |  | Gaines, Richard V., Skinner, H. Catherine W., Foord, Eugene E., Mason, Brian, Rosenzweig, Abraham, King, Vandall T. (1997) Dana's New Mineralogy (8th ed.) Wiley-Interscience. p.1872 | Book (edition) | | Especially when the mineral species is common, such as quartz (75.1.3.1), many varieties (jasper, onyx) are known...chemistry and structure are identical to those of quartz. 5D. Polytypes Materials whose basic structural...only with fibrous minerals Columbite, wolframite Quartz Opal, some yellow varieties of sphalerite Nepheline...are distinctive. Chonchoidal fracture, typical of quartz, gives a fracture similar to the interior of a...Calcite 4 5 6 Fluorite Apatite Orthoclase a Quartz Soft, greasy feel like tale and graphite, and |
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