Properties of Batubara lan Wehrlite
ukuran gandum
medium kanggo nggoleki coarse grained
coarse grained
rengat
conchoidal
ora duwe aturan baku
porosity
kurang keropos
kurang keropos
luster
kurang kanggo vitreous kanggo submetallic
metallic
cleavage
non-ana
sampurna
kateguhan
ora kasedhiya
2.1
tartamtu gravitasi
1.1-1.4
8.4
Kapadhetan
1100-1400 g / cm 3
2.6-3.7 g / cm 3
resistance
tahan panas
tahan panas, impact tahan, meksa tahan