Properties of Batubara lan Diabase
ukuran gandum
medium kanggo nggoleki coarse grained
nggoleki grained medium
rengat
conchoidal
conchoidal
porosity
kurang keropos
Highly keropos
luster
kurang kanggo vitreous kanggo submetallic
-
tartamtu gravitasi
1.1-1.4
2.86-2.87
Kapadhetan
1100-1400 g / cm 3
2.7-3.3 g / cm 3
resistance
tahan panas
tahan panas, impact tahan, meksa tahan, nyandhang tahan