Mineral Species: Vanadinite
Chemical Formula: Pb5(VO4)3Cl
Chemical Name: Lead Chlorovanadate
Mineral Class: Vanadate
Mineral Notes: Vanadinite is a secondary mineral formed by alteration of lead ore by water in the presence of vanadium. The mineral is light sensitive and so specimens should be kept in darkness. The bright orange colouration gradually darkens and dulls to shades of brown.
Description: Small, but extremely well-formed crystals of blood-red Vanadinite on grey matrix. The mineral is very lustrous and gemmy.
Location: Apache Mine, Globe Co., Arizona, USA.