Properties of Pegmatite lan Itacolumite
ukuran gandum
medium kanggo coarse grained
coarse utawa nggoleki
rengat
conchoidal
conchoidal
porosity
kurang keropos
Highly keropos
luster
grainy, mutiyara lan vitreous
kurang
cleavage
sampurna
sampurna
tartamtu gravitasi
2.6-2.63
2.2-2.8
transparan
tembus kanggo opaque
opaque
Kapadhetan
2.6-2.65 g / cm 3
2.2-2.8 g / cm 3
kapasitas panas tartamtu
ora Sumadhiya
resistance
tahan panas, impact tahan, meksa tahan
tahan panas, impact tahan, meksa tahan