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