Properties of Batubara lan Minette
ukuran gandum
medium kanggo nggoleki coarse grained
nggoleki kanggo coarse grained
rengat
conchoidal
conchoidal
porosity
kurang keropos
banget kurang keropos
luster
kurang kanggo vitreous kanggo submetallic
subvitreous kanggo kurang
cleavage
non-ana
conchoidal
kateguhan
ora kasedhiya
ora kasedhiya
tartamtu gravitasi
1.1-1.4
2.86-2.87
transparan
opaque
tembus kanggo opaque
Kapadhetan
1100-1400 g / cm 3
2.95-2.96 g / cm 3
kapasitas panas tartamtu
ora Sumadhiya
resistance
tahan panas
tahan panas, impact tahan