Properties of Tuff lan Obsidian
ukuran gandum
grained nggoleki
ora ditrapake
rengat
ora rata
conchoidal
porosity
Highly keropos
banget kurang keropos
luster
vitreous kanggo kurang
vitreous
cleavage
ora kasedhiya
non-ana
kateguhan
ora kasedhiya
ora kasedhiya
tartamtu gravitasi
2.73
2.6-2.7
Kapadhetan
1-1.8 g / cm 3
2.6 g / cm 3
resistance
tahan panas, impact tahan, meksa tahan, nyandhang tahan
tahan panas, impact tahan