Nanpingite
General Information:
Chemical Formula:CsAl2(Si,Al)4O10(OH,F)2
IMA Status:Approved IMA
Physical Properties: Cleavage:[001] Perfect
Color:white or silver white.
Density:3.11
Diaphaniety:Transparent to Translucent
Habits:Crystalline - Fine - Occurs as well-formed fine sized crystals., ,
Hardness:2.5-3 - Finger Nail-Calcite
Luster:Vitreous - Pearly
Streak:white
More details...
Cs(Al,Mg,Fe,Li)2(Si3Al)O10(OH,F)2
