Properties of Obsidian lan Epidosite
ukuran gandum
ora ditrapake
nggoleki kanggo coarse grained
rengat
conchoidal
conchoidal
tilas
putih
putih kanggo werna abu-abu
porosity
banget kurang keropos
kurang keropos
luster
vitreous
ora kasedhiya
kekuatan compressive
ora Sumadhiya
cleavage
non-ana
ora kasedhiya
kateguhan
ora kasedhiya
2.3
tartamtu gravitasi
2.6-2.7
2.8-3
Kapadhetan
2.6 g / cm 3
ora Sumadhiya
kapasitas panas tartamtu
ora Sumadhiya
resistance
tahan panas, impact tahan
tahan panas, meksa tahan, nyandhang tahan