Properties of Anthracite lan Wehrlite
ukuran gandum
medium kanggo nggoleki coarse grained
coarse grained
rengat
conchoidal
ora duwe aturan baku
porosity
kurang keropos
kurang keropos
cleavage
non-ana
sampurna
kateguhan
ora kasedhiya
2.1
tartamtu gravitasi
1.1-1.4
8.4
Kapadhetan
1.25-2.5 g / cm 3
2.6-3.7 g / cm 3
resistance
tahan panas, banyu tahan
tahan panas, impact tahan, meksa tahan