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Pyrargyrite |
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pyrargyrite [pī′rär·jə‚rīt]
(mineralogy) Ag3SbS3A deep ruby-red to black mineral, crystallizing in the hexagonal system, occurring in massive form and in disseminated grains, and having an adamantine luster; hardness is 2.5 on Mohs scale, and specific gravity is 5.85; an important silver ore. Also known as dark-red silver ore; dark ruby silver. Pyrargyrite a mineral with composition Ag3SbS3, containing 59.76 percent Ag, 22.48 percent Sb, and 17.76 percent S. Pyrargyrite crystallizes in the trigonal system. It occurs as irregularly shaped grains and their aggregates and in the form of prismatic crystals. It is dark red, with an adamantine luster. A brittle mineral, it has a hardness of 2.5 on Mohs’ scale and a density of 5,770–5,860 kg/m3. Pyrargyrite is not a widely occurring mineral. It forms in hydrothermal deposits at moderate or low temperatures. In the USSR, deposits are found in the Urals, Middle Asia, Transbaikalia, the Yakut ASSR, and the Far East. Other deposits are found in the German Democratic Republic, the Federal Republic of Germany, Czechoslovakia, Mexico, Chile, and Bolivia. Along with other silver-bearing minerals, pyrargyrite is an important ore of silver. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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No references found | Another less important Ag mineral is pyrargyrite (called 'ruby silver' by prospectors), which was only abundant in the Silver King, Husky, Elsa and, particularly, the Lucky Queen mines. High grade ore found along this vein is comprised of multi-phase, banded quartz-chalcedony veining with the principal economic minerals consisting of naumannite, pyrargyrite, miargyrite, tetrahedrite, and electrum. Preliminary petrographic work shows the presence of native gold, native silver and pyrargyrite (Ruby Silver) contained within the veins and veinlets of the stockwork. |
Pyrargyrite |
Pyramis Pyramis Pyramoid Pyramus Pyramus Pyramus and Thisbe Pyramus and Thisbe Pyramus and Thisby Pyramus and Thisby pyran pyran pyran Pyranees Pyranees Pyranga rubra Pyranocoumarins Pyranocoumarins Pyranocoumarins Pyranograph Pyranometer Pyranometer pyranose pyranose Pyranose 2-Oxidase pyranoside Pyrans Pyrans Pyrans pyrantel Pyrantel pamoate Pyrargyrite Pyrates ConfraternityPyrausta Pyrausta nubilalis Pyraustinae Pyrazinamide Pyrazinamide Pyrazinamide Pyrazinamide, Rifampin, Isoniazid, Streptomycin and Ethambutol Pyrazine Pyrazine Pyrazine ring pyrazinecarboxamide Pyrazines Pyrazines Pyrazole Pyrazoles Pyrazoline pyrazolone pyrazolone derivatives pyrazolone dye Pyrazolones PYRC pyre pyrectic pyrectic Pyreenes Pyreenes Pyrena pyrene pyrene | |||||||
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