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