Properties of Obsidian lan Oolite
ukuran gandum
-
grained nggoleki
rengat
conchoidal
conchoidal
porosity
banget kurang keropos
kurang keropos
luster
vitreous
mutiyara kanggo mengilap
tartamtu gravitasi
2.6-2.7
-9999
Kapadhetan
2.6 g / cm 3
-9999 g / cm 3
resistance
tahan panas, impact tahan
tahan panas, nyandhang tahan