Properties of Anthracite lan Batu Gamping
ukuran gandum
medium kanggo nggoleki coarse grained
grained nggoleki
rengat
conchoidal
splintery
porosity
kurang keropos
kurang keropos
luster
mengilap
kurang kanggo pearly
kekuatan compressive
ora Sumadhiya
kateguhan
ora kasedhiya
1
tartamtu gravitasi
1.1-1.4
2.3-2.7
Kapadhetan
1.25-2.5 g / cm 3
2.3-2.7 g / cm 3
resistance
tahan panas, banyu tahan
meksa tahan