Properties of Greywacke lan Batubara
ukuran gandum
sudut lan nggoleki
medium kanggo nggoleki coarse grained
rengat
conchoidal
conchoidal
porosity
Highly keropos
kurang keropos
luster
kurang
kurang kanggo vitreous kanggo submetallic
cleavage
sampurna
non-ana
kateguhan
2.6
ora kasedhiya
tartamtu gravitasi
2.2-2.8
1.1-1.4
Kapadhetan
2.6-2.61 g / cm 3
1100-1400 g / cm 3
kapasitas panas tartamtu
ora Sumadhiya
resistance
tahan panas, impact tahan, meksa tahan
tahan panas