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Pyrrhotite

Posted by David Von Bargen  
avatar Pyrrhotite
October 20, 2010 05:43PM
    
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Can you help make this a better article? What good localities have we missed? Can you supply pictures of better specimens than those we show here? Can you give us more and better information about the specimens from these localities? Can you supply better geological or historical information on these localities?


Pyrrhotite
Fe1-xS Hexagonal and Monoclinic
Santa Eulalia, Mexico 3.7 cm © Rob Lavinsky

Forms thin to thick tabular crystals, also bipyramidal to prismatic or barrel like crystals.
Fairly common mineral especially in mafic igneous rocks and volcanogenic sulfide deposits formed from the high temperature "black" smokers

Brazil, Minas Gerais, Iron Quadrangle, Nova Lima

Scale at bottom of image is an inch with a rule at one cm. ©


Brazil, Minas Gerais, Iron Quadrangle, Nova Lima, Morro Velho mine (incl. Mina Velha; Mina Grande)

8x6x4 cm. © 2000 John H. Betts
8 cm © Rob Lavinsky




Canada, British Columbia, Slocan Mining Division, Riondel, Blue Bell Mine

Scale at bottom of image is an inch with a rule at one cm. ©
Scale at bottom of image is an inch with a rule at one cm. ©




Canada, Ontario, Sudbury District, Sudbury

Most pyrrhotite is massive. The Sudbury ores formed from sulfide rich magmas.

14cm © J. Nemitz


China, Hunan Province, Chenzhou Prefecture, Yizhang Co., Yaogangxian Mine

3 cm © Dan & Diana Weinrich Minerals


Italy, Tuscany, Grosseto Province, Massa Marittima, Niccioleta Mine

6,5cm © Marco Barsanti


Kosovo, Kosovska Mitrovica, Trepča valley, Trepča complex

Trepca - crystals to 10cm.
5 cm. © Rob Lavinsky
Scale at bottom of image is an inch. ©


Scale at bottom of image is an inch. ©



Kosovo, Kosovska Mitrovica, Trepča valley, Trepča complex, Stari Trg Mine

7cm © Knut Eldjarn
7cm © Rob Lavinsky




Mexico, Chihuahua, Mun. de Aquiles Serdán, Santa Eulalia District

El Potosi mine in crystals to 15cm. The deposits are mantos of ore minerals between igneous and sedimentary rocks.

4 cm © Rob Lavinsky
8cm © Rob Lavinsky


2 cm © Michael C. Roarke
6cm © Dan Weinrich


7 cm © Tony Peterson
4 cm © Rob Lavinsky


5 cm © Rob Lavinsky
3 cm © Dan & Diana Weinrich Minerals


Scale at bottom of image is an inch ©
Scale at bottom of image is an inch. ©


Scale at bottom of image is an inch ©




Mexico, Chihuahua, Mun. de Aquiles Serdán, Santa Eulalia District, East Camp, San Antonio Mine (San Antonio el Grande Mine)

10 cm © Rob Lavinsky


Mexico, Chihuahua, Mun. de Aquiles Serdán, Santa Eulalia District, West Camp, Aquiles Serdán, Potosí Mine

Scale at bottom of image is an inch. ©


Mexico, Chihuahua, Mun. de Aquiles Serdán, Santa Eulalia District, West Camp, Francisco Portillo, Potosí Mine (El Potosí Mine)

2 cm © Antonio Borrelli
4 cm © MnhnL




Mexico, Zacatecas

3 cm © Rob Lavinsky



Romania, Maramures Co., Baia Mare (Nagybánya), Chiuzbaia (Kisbánya), Herja Mine

6cm © Tamás Ungvári 2005
4 cm © fabreminerals.com




Russia, Far-Eastern Region, Primorskiy Kray, Dal'negorsk (Dalnegorsk; Tetyukhe; Tjetjuche; Tetjuche)

4 cm © 2002 John H. Betts
4 cm © Antonio Borrelli


5 cm © Joseph A. Freilich
3 cm © Russell G. Rizzo


3 cm © Rob Lavinsky
3 cm © Rob Lavinsky




Russia, Far-Eastern Region, Primorskiy Kray, Dal'negorsk (Dalnegorsk; Tetyukhe; Tjetjuche; Tetjuche), Nikolaevskiy Mine

Nikolaevskoye deposit had crystals up to 40cm in size in the skarn deposit. Coarse-blocky prismatic-pinacoidal, to thick tabular crystals. They may be replaced by pyrite or marcasite.

15 cm © 2003 John H. Betts
8 cm © KhyberMinerals.com


6 cm © Rob Lavinsky
13 cm © Rob Lavinsky




Switzerland, Uri, Urseren, Realp, Furka basis tunnel (east section)

2 cm © Christian Bracke



UK, England, Co. Durham, North Pennines, Weardale, Westgate, Cambokeels Mine (Cammock Isle Mine; Cumnock Isle Mine; Cammock Eals Mine)

3 cm © Rob Lavinsky



Edited 3 time(s). Last edit at 10/20/2010 06:28PM by David Von Bargen.
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