vanadinite

Where vanadium comes from. An apatite.

Vanadinite

Lots of flat orange crystals with some small grains of yellow crystals in between.

Photo by Egen Wark

Reposted from our friend Mineralogy on Google+: Vanadinite is a lead chlorovanadate characterized by red to red-orange hexagonal crystals. It is a secondary mineral found in the oxidized zone of lead deposits resulting from the alteration of vanadiferous sulfides and silicates. A member of the apatite group, vanadinite forms a solid-solution series with its phosphate (pyromorphite) and arsenate (mimetite) analogues. It was first discovered in Mexico in the 19th century and is prized by collectors due to its distinctive color.

If you like the photo and writeup, check out Mineralogy’s Google+ page and follow them.

Advertisements