Properties of Obsidian lan Norite
ukuran gandum
ora ditrapake
coarse grained
rengat
conchoidal
conchoidal
porosity
banget kurang keropos
Highly keropos
luster
vitreous
ora kasedhiya
cleavage
non-ana
ora kasedhiya
kateguhan
ora kasedhiya
1.6
tartamtu gravitasi
2.6-2.7
2.86-2.87
Kapadhetan
2.6 g / cm 3
2.7-3.3 g / cm 3
kapasitas panas tartamtu
ora Sumadhiya
resistance
tahan panas, impact tahan
impact tahan, meksa tahan, nyandhang tahan