Freieslebenite

Freieslebenite

Freieslebenite is a rare sulfide mineral of antimony, lead and silver with formula AgPbSbS3 and molecular weight of 533.02 g/mol. It is an opaque non-fluorescent mineral which has a hydrothermal origin. It is metallic, with a specific gravity of 6.3 and a Mohs hardness of 2.5 - about that of a finger nail. It is non-magnetic and is usually gray in colour. It has indistinct cleavage, and is brittle and has a conchoidal fracture. It can have a white or gray streak. It crystallizes in the monoclinic system.

Freieslebenite is normally found in Europe, usually in Romania and Germany. It was discovered in 1845, and is named after Johann Karl Freiesleben (1774 - 1846), Mining Commissioner of Saxony, Germany.

ee also

*List of minerals
*List of minerals named after people

References

* [http://www.mindat.org/min-1606.html Mindat]
* [http://www.webmineral.com/data/Freieslebenite.shtml WebMineral]
* [http://euromin.w3sites.net/mineraux/FREIESLEBENITE.html EuroMineral]


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  • Freieslebenite — Frei es*le ben*ite, n. [Named after the German chemist Freiesleben.] A sulphide of antimony, lead, and silver, occuring in monoclinic crystals. [1913 Webster] …   The Collaborative International Dictionary of English

  • freieslebenite — noun A rare opaque sulfide mineral of antimony, lead and silver with the chemical formula AgPbSbS …   Wiktionary

  • freieslebenite — frei·es·le·ben·ite …   English syllables

  • freieslebenite — |frīəs|lābəˌnīt noun ( s) Etymology: German freieslebenit, from Johann K. Freiesleben died 1846 German mineralogist + German it ite : a mineral Pb3Ag5Sb5S12 consisting of a gray metallic looking sulfide of antimony, lead, and silver …   Useful english dictionary

  • List of minerals F-J (complete) — It is currently not possible to have a complete list of minerals . The International Mineralogical Association is the international group that recognises new minerals and new mineral names, however minerals discovered before 1959 did not go… …   Wikipedia

  • Marrite — General Category Sulfosalt mineral Chemical formula PbAgAsS3 Strunz classification 02.JB.15 Crystal symmetry Monoclinic 2 …   Wikipedia

  • Ag2C2N2O2 — Silver Sil ver (s[i^]l v[ e]r), n. [OE. silver, selver, seolver, AS. seolfor, siolfur, siolufr, silofr, sylofr; akin to OS. silubar, OFries. selover, D. zilver, LG. sulver, OHG. silabar, silbar, G. silber, Icel. silfr, Sw. silfver, Dan. s[ o]lv,… …   The Collaborative International Dictionary of English

  • Ag2ONH32 — Silver Sil ver (s[i^]l v[ e]r), n. [OE. silver, selver, seolver, AS. seolfor, siolfur, siolufr, silofr, sylofr; akin to OS. silubar, OFries. selover, D. zilver, LG. sulver, OHG. silabar, silbar, G. silber, Icel. silfr, Sw. silfver, Dan. s[ o]lv,… …   The Collaborative International Dictionary of English

  • Black silver — Silver Sil ver (s[i^]l v[ e]r), n. [OE. silver, selver, seolver, AS. seolfor, siolfur, siolufr, silofr, sylofr; akin to OS. silubar, OFries. selover, D. zilver, LG. sulver, OHG. silabar, silbar, G. silber, Icel. silfr, Sw. silfver, Dan. s[ o]lv,… …   The Collaborative International Dictionary of English

  • brittle silver glance — Silver Sil ver (s[i^]l v[ e]r), n. [OE. silver, selver, seolver, AS. seolfor, siolfur, siolufr, silofr, sylofr; akin to OS. silubar, OFries. selover, D. zilver, LG. sulver, OHG. silabar, silbar, G. silber, Icel. silfr, Sw. silfver, Dan. s[ o]lv,… …   The Collaborative International Dictionary of English

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