Properties of Icelandite lan Obsidian
ukuran gandum
banget nggoleki-grained
ora ditrapake
rengat
ora rata
conchoidal
porosity
kurang keropos
banget kurang keropos
kekuatan compressive
ora Sumadhiya
cleavage
ora kasedhiya
non-ana
kateguhan
1.1
ora kasedhiya
tartamtu gravitasi
2.5-2.8
2.6-2.7
Kapadhetan
2.11-2.36 g / cm 3
2.6 g / cm 3
resistance
tahan panas, meksa tahan, ngeruk tahan, nyandhang tahan
tahan panas, impact tahan