Spodumene

Name:
Spodumene
Detailed information:

M Formula:	LiAl(SiO3)2
Properties:
White, pale-green, emerald-green, pink, or purple mineral; white streak; vitreous luster. Contains up to 8% lithium oxide with some replacement by sodium. D 3.13–3.20, Mohs hardness 6.5–7. Insoluble in acids.
Occurrence:
U.S. (North Carolina, California, Massachusetts, South Dakota), Brazil, Mozambique.
Use:
Source of lithium, in ceramics and glass as a source of lithia and alumina.