出典:Wiktionary
出典:Wikipedia
出典:『Wikipedia』 (2011/06/16 15:28 UTC 版)
Berthierite is a mineral, a sulfide of iron and antimony with formula FeSb2S4. It is steel grey in colour with a metallic lustre which can be covered by an iridescent tarnish. Because of its appearance it is often mistaken for stibnite.