Geocronite

Geocronite

Geocronite is a mineral, a mixed sulfosalt containing lead, antimony, and arsenic with a formula of Pb14(Sb, As)6S23. Geocronite is the antimony rich endmember of a solid solution series. The arsenic rich endmember is named "jordanite". It occurs as grey, black, to silvery white monoclinic crystals. It is found in hydrothermal veins usually associated with other similar minerals, particularly the sulfides of iron and copper.

The mineral has been found in Spain, Ireland and Sweden where it was first identified in 1839.

References

* [http://webmineral.com/data/Geocronite.shtml Webmineral]
* [http://www.mindat.org/min-1674.html Mindat]
* [http://mineral.galleries.com/minerals/sulfides/jordanit/jordanit.htm Mineral Galleries]


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  • geocronite — jēˈäkrəˌnīt noun ( s) Etymology: German geokronit, from geo ge + Kronos, leader of the Titans in Greek mythology (from Greek) + German it ite : a mineral Pb5(Sb,As)2S3 consisting of a usually massive lead gray lead …   Useful english dictionary

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