Properties of Pegmatite lan Obsidian
ukuran gandum
medium kanggo coarse grained
ora ditrapake
rengat
conchoidal
conchoidal
porosity
kurang keropos
banget kurang keropos
luster
grainy, mutiyara lan vitreous
vitreous
cleavage
sampurna
non-ana
kateguhan
2.1
ora kasedhiya
tartamtu gravitasi
2.6-2.63
2.6-2.7
transparan
tembus kanggo opaque
tembus
Kapadhetan
2.6-2.65 g / cm 3
2.6 g / cm 3
kapasitas panas tartamtu
ora Sumadhiya
resistance
tahan panas, impact tahan, meksa tahan
tahan panas, impact tahan