Properties of Obsidian lan Oolite
ukuran gandum
ora ditrapake
grained nggoleki
rengat
conchoidal
conchoidal
porosity
banget kurang keropos
kurang keropos
luster
vitreous
mutiyara kanggo mengilap
kekuatan compressive
ora Sumadhiya
kateguhan
ora kasedhiya
1
tartamtu gravitasi
2.6-2.7
ora Sumadhiya
Kapadhetan
2.6 g / cm 3
ora Sumadhiya
kapasitas panas tartamtu
ora Sumadhiya
resistance
tahan panas, impact tahan
tahan panas, nyandhang tahan