Properties of Anthracite lan Harzburgite
ukuran gandum
medium kanggo nggoleki coarse grained
coarse grained
rengat
conchoidal
ora duwe aturan baku
porosity
kurang keropos
kurang keropos
kateguhan
ora kasedhiya
2.1
tartamtu gravitasi
1.1-1.4
3-3.01
transparan
opaque
tembus kanggo opaque
Kapadhetan
1.25-2.5 g / cm 3
3.1-3.4 g / cm 3
resistance
tahan panas, banyu tahan
tahan panas, meksa tahan, nyandhang tahan