Properties of Obsidian lan Metapelite
ukuran gandum
ora ditrapake
medium kanggo nggoleki coarse grained
rengat
conchoidal
fibrous
porosity
banget kurang keropos
Highly keropos
kekuatan compressive
ora Sumadhiya
cleavage
non-ana
ora kasedhiya
kateguhan
ora kasedhiya
ora kasedhiya
tartamtu gravitasi
2.6-2.7
3.4-3.7
Kapadhetan
2.6 g / cm 3
0-300 g / cm 3
resistance
tahan panas, impact tahan
tahan panas, impact tahan, meksa tahan