Properties of Obsidian lan Wehrlite
ukuran gandum
ora ditrapake
coarse grained
rengat
conchoidal
ora duwe aturan baku
porosity
banget kurang keropos
kurang keropos
kekuatan compressive
ora Sumadhiya
cleavage
non-ana
sampurna
kateguhan
ora kasedhiya
2.1
tartamtu gravitasi
2.6-2.7
8.4
Kapadhetan
2.6 g / cm 3
2.6-3.7 g / cm 3
resistance
tahan panas, impact tahan
tahan panas, impact tahan, meksa tahan