Properties of Batubara lan Batu Gamping
ukuran gandum
medium kanggo nggoleki coarse grained
grained nggoleki
rengat
conchoidal
splintery
porosity
kurang keropos
kurang keropos
luster
kurang kanggo vitreous kanggo submetallic
kurang kanggo pearly
kekuatan compressive
ora Sumadhiya
kateguhan
ora kasedhiya
1
tartamtu gravitasi
1.1-1.4
2.3-2.7
Kapadhetan
1100-1400 g / cm 3
2.3-2.7 g / cm 3
resistance
tahan panas
meksa tahan