Properties of Obsidian lan Dolomit
ukuran gandum
ora ditrapake
medium kanggo nggoleki coarse grained
rengat
conchoidal
conchoidal
porosity
banget kurang keropos
kurang keropos
luster
vitreous
vitreous lan mutiyara
cleavage
non-ana
sampurna
kateguhan
ora kasedhiya
1
tartamtu gravitasi
2.6-2.7
2.8-3
transparan
tembus
transparent kanggo Translucent
Kapadhetan
2.6 g / cm 3
2.8-2.9 g / cm 3
resistance
tahan panas, impact tahan
tahan panas, meksa tahan, nyandhang tahan