Properties of Batubara lan Adakite
ukuran gandum
medium kanggo nggoleki coarse grained
nggoleki grained medium
rengat
conchoidal
conchoidal
porosity
kurang keropos
kurang keropos
luster
kurang kanggo vitreous kanggo submetallic
grainy, mutiyara lan vitreous
cleavage
non-ana
ora kasedhiya
kateguhan
ora kasedhiya
ora kasedhiya
tartamtu gravitasi
1.1-1.4
ora Sumadhiya
Kapadhetan
1100-1400 g / cm 3
ora Sumadhiya
kapasitas panas tartamtu
ora Sumadhiya
resistance
tahan panas
tahan panas, meksa tahan, nyandhang tahan