Properties of Rhomb Porphyry lan Obsidian
ukuran gandum
grained nggoleki
ora ditrapake
rengat
conchoidal
conchoidal
porosity
banget kurang keropos
banget kurang keropos
luster
subvitreous kanggo kurang
vitreous
cleavage
sampurna
non-ana
kateguhan
2.7
ora kasedhiya
tartamtu gravitasi
2.86
2.6-2.7
Kapadhetan
2.8-2.9 g / cm 3
2.6 g / cm 3
resistance
tahan panas, meksa tahan
tahan panas, impact tahan