Properties of Batubara lan Claystone
ukuran gandum
medium kanggo nggoleki coarse grained
grained nggoleki
rengat
conchoidal
ora kasedhiya
porosity
kurang keropos
banget kurang keropos
luster
kurang kanggo vitreous kanggo submetallic
kurang
cleavage
non-ana
sampurna
kateguhan
ora kasedhiya
2.6
tartamtu gravitasi
1.1-1.4
0
Kapadhetan
1100-1400 g / cm 3
2-2.9 g / cm 3
resistance
tahan panas
tahan panas, impact tahan