Properties of Mangerite lan Obsidian
ukuran gandum
medium kanggo nggoleki coarse grained
ora ditrapake
rengat
ora kasedhiya
conchoidal
porosity
kurang keropos
banget kurang keropos
luster
subvitreous kanggo kurang
vitreous
cleavage
ora kasedhiya
non-ana
kateguhan
ora kasedhiya
ora kasedhiya
tartamtu gravitasi
2.8-3
2.6-2.7
Kapadhetan
2.9-2.91 g / cm 3
2.6 g / cm 3
resistance
tahan panas, impact tahan, meksa tahan
tahan panas, impact tahan