Properties of Obsidian lan Batu Gamping
ukuran gandum
ora ditrapake
grained nggoleki
rengat
conchoidal
splintery
porosity
banget kurang keropos
kurang keropos
luster
vitreous
kurang kanggo pearly
kateguhan
ora kasedhiya
1
tartamtu gravitasi
2.6-2.7
2.3-2.7
Kapadhetan
2.6 g / cm 3
2.3-2.7 g / cm 3
resistance
tahan panas, impact tahan
meksa tahan