Properties of Obsidian lan Eclogite
ukuran gandum
-
grained nggoleki
porosity
banget kurang keropos
kurang keropos
luster
vitreous
subvitreous kanggo kurang
tartamtu gravitasi
2.6-2.7
2.86-2.87
Kapadhetan
2.6 g / cm 3
3.2-3.6 g / cm 3
resistance
tahan panas, impact tahan
tahan panas