Alloclasite Information & Alloclasite Links at HealthHaven.com

Alloclasite ((Co,Fe)As S) is a sulfosalt mineral. It is a member of the arsenopyrite group. Alloclasite crystallizes in the monoclinic system and typically forms as columnar to radiating acicular prismatic clusters. It is an opaque steel-gray to silver-white, with a metallic lustre and a black streak. It is brittle with perfect cleavage, a Mohs hardness of 5 and a specific gravity of 5.91–5.95.^[1]

It was first described in 1866 for an occurrence in Romania.^[2] Its name is derived from Greek for "other" and "to break," in reference to its distinct cleavage which distinguished it from the similar appearing mineral marcasite.^[3]^[1]

[edit] References

^ ^a ^b http://rruff.geo.arizona.edu/doclib/hom/alloclasite.pdf Handbook of Mineralogy
^ http://www.mindat.org/min-134.html Mindat data
^ http://www.webmineral.com/data/Alloclasite.shtml Webmineral data

This article about a specific sulfide mineral is a stub. You can help Wikipedia by expanding it.

[Handbook-0] ttp://rruff.geo.arizona.edu/doclib/hom/alloclasite.pdf Handbook of Mineralogy

[1] ttp://www.mindat.org/min-134.html Mindat data

[2] ttp://www.webmineral.com/data/Alloclasite.shtml Webmineral data

[1]

[2]

[3]