Properties of Batubara lan Tonalite
ukuran gandum
medium kanggo nggoleki coarse grained
medium kanggo nggoleki coarse grained
rengat
conchoidal
conchoidal
porosity
kurang keropos
banget kurang keropos
luster
kurang kanggo vitreous kanggo submetallic
subvitreous kanggo kurang
cleavage
non-ana
ora kasedhiya
kateguhan
ora kasedhiya
2.1
tartamtu gravitasi
1.1-1.4
2.86-3
Kapadhetan
1100-1400 g / cm 3
2.73 g / cm 3
resistance
tahan panas
tahan panas, meksa tahan, banyu tahan