Strontianite

Name:
Strontianite
Detailed information:
Natural strontium carbonate.

M Formula:	SrCO3
Properties:
White, gray, yellow, green color; vitreous luster. Mohs hardness 3.5–4, d 3.7.
Occurrence:
California, New York, Washington, Germany, Mexico.
Use:
Source of strontium chemicals.