My
periodic table poster
is now available!
Orpiment.
This is a beautiful, lovely crystal cluster of orpiment (arsenic sulfide) from Elbrusskiy Mine, Northern Caucusus, Russia.
Source:
eBay seller delraygoddess
Contributor:
Theodore Gray
Acquired:
15 October, 2005
Price:
$10
Size:
0.7"
Composition:
As
2
S
3