LiAlPO4(F,OH)Triclinic

Amblygonite

LiAlPO4(F,OH)

Phosphates
Chemical FormulaLiAlPO4(F,OH)
Crystal SystemTriclinic
Mohs Hardness6
Specific Gravity3.1
ColorWhite, yellow, pink, green
LusterVitreous to greasy
StreakWhite
CleavageOne direction
FractureUneven

Occurrence

Found in granite pegmatites. Source of lithium.

Hardness on Mohs Scale

6 / 10
Talc (1)Quartz (7)Diamond (10)