Properties of Batubara lan Pyrolite
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
mengilap
tartamtu gravitasi
1.1-1.4
3-3.01
transparan
opaque
tembus kanggo opaque
Kapadhetan
1100-1400 g / cm 3
3.1-3.4 g / cm 3
resistance
tahan panas
tahan panas, meksa tahan, nyandhang tahan