Pararealgar

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The unit cell of pararealgar

Pararealgar is an arsenic sulfide material with the chemical formula AsS. It forms gradually from realgar under exposure to light. Its name derives from the fact that its elemental composition is identical to realgar, As₄S₄. It is soft with a Mohs hardness of 1 - 1.5, is yellow orange in colour, and its monoclinic or prismatic crystals are very brittle, easily crumbling to powder.

[edit] External links

• Webmineral.com Mineralogy Database: Pararealgar

This article about a specific mineral, mineraloid, or rock type is a stub. You can help Wikipedia by expanding it.

Retrieved from "http://en.wikipedia.org../../../p/a/r/Pararealgar.html"

Categories: Arsenic minerals | Sulfide minerals | Mineral stubs

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• This page was last modified 14:33, 16 September 2006 by Wikipedia user Benjah-bmm27. Based on work by Wikipedia user(s) FlaBot, Vsmith, Beetstra and King Hildebrand.
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