Properties of Obsidian lan Konglomerat
ukuran gandum
ora ditrapake
coarse grained
rengat
conchoidal
ora rata
porosity
banget kurang keropos
Highly keropos
kekuatan compressive
ora Sumadhiya
kateguhan
ora kasedhiya
ora kasedhiya
tartamtu gravitasi
2.6-2.7
2.86-2.88
Kapadhetan
2.6 g / cm 3
1.7-2.3 g / cm 3
resistance
tahan panas, impact tahan
tahan panas