Properties of Batubara lan IJOLITE
ukuran gandum
medium kanggo nggoleki coarse grained
coarse grained
rengat
conchoidal
conchoidal kanggo ora rata
porosity
kurang keropos
kurang keropos
luster
kurang kanggo vitreous kanggo submetallic
greasy kanggo kurang
kateguhan
ora kasedhiya
ora kasedhiya
tartamtu gravitasi
1.1-1.4
2.6-2.76
Kapadhetan
1100-1400 g / cm 3
2.6 g / cm 3
kapasitas panas tartamtu
ora Sumadhiya
resistance
tahan panas
tahan panas, impact tahan, nyandhang tahan