Properties of Pegmatite lan Comendite
ukuran gandum
medium kanggo coarse grained
grained medium
rengat
conchoidal
mrembet
porosity
kurang keropos
Highly keropos
luster
grainy, mutiyara lan vitreous
kurang
tartamtu gravitasi
2.6-2.63
2.38
transparan
tembus kanggo opaque
opaque
Kapadhetan
2.6-2.65 g / cm 3
-9999 g / cm 3
resistance
tahan panas, impact tahan, meksa tahan
tahan panas, impact tahan