Properties of Minette lan Obsidian
ukuran gandum
nggoleki kanggo coarse grained
ora ditrapake
rengat
conchoidal
conchoidal
porosity
banget kurang keropos
banget kurang keropos
luster
subvitreous kanggo kurang
vitreous
kekuatan compressive
ora Sumadhiya
cleavage
conchoidal
non-ana
kateguhan
ora kasedhiya
ora kasedhiya
tartamtu gravitasi
2.86-2.87
2.6-2.7
transparan
tembus kanggo opaque
tembus
Kapadhetan
2.95-2.96 g / cm 3
2.6 g / cm 3
kapasitas panas tartamtu
ora Sumadhiya
resistance
tahan panas, impact tahan
tahan panas, impact tahan