fisik
atose
3-46.5
1
7
👆🏻
ukuran gandum
banget nggoleki-grained
medium kanggo nggoleki coarse grained
rengat
splintery
ora rata
tilas
cahya kanggo coklat peteng
bluish ireng
porosity
kurang keropos
banget kurang keropos
luster
kurang
subvitreous kanggo kurang
kekuatan compressive
30.00 n / mm 290.00 n / mm 2
0.15
450
👆🏻
cleavage
slaty
crenulation lan mrembet
kateguhan
1.2
2.4
tartamtu gravitasi
2.65-2.82.86
0
8.4
👆🏻
transparan
opaque
opaque
Kapadhetan
2.6-2.8 g / cm 32.8-2.9 g / cm 3
0
1400
👆🏻
situs termal
kapasitas panas tartamtu
0.76 kj / kg k0.92 kj / kg k
0.14
3.2
👆🏻
resistance
tahan panas, impact tahan, meksa tahan, nyandhang tahan
tahan panas, impact tahan