ukuran gandum
medium kanggo nggoleki coarse grained
grained nggoleki
rengat
conchoidal
ora kasedhiya
tilas
bluish ireng
wernane
porosity
banget kurang keropos
Highly keropos
luster
subvitreous kanggo kurang
kurang lan grainy
cleavage
ora kasedhiya
ora kasedhiya
kateguhan
2.1
ora kasedhiya
tartamtu gravitasi
2.86-3
ora Sumadhiya
Kapadhetan
2.73 g / cm 3
ora Sumadhiya
kapasitas panas tartamtu
ora Sumadhiya
resistance
tahan panas, meksa tahan, nyandhang tahan
tahan panas