Properties of Batubara lan JASPEROID
ukuran gandum
medium kanggo nggoleki coarse grained
medium kanggo nggoleki coarse grained
rengat
conchoidal
conchoidal
porosity
kurang keropos
kurang keropos
luster
kurang kanggo vitreous kanggo submetallic
vitreous lan mutiyara
tartamtu gravitasi
1.1-1.4
2.8-3
transparan
opaque
transparent kanggo Translucent
Kapadhetan
1100-1400 g / cm 3
2.8-2.9 g / cm 3
resistance
tahan panas
tahan panas, meksa tahan, nyandhang tahan