Properties of Anthracite lan Comendite
ukuran gandum
medium kanggo nggoleki coarse grained
grained medium
rengat
conchoidal
mrembet
porosity
kurang keropos
Highly keropos
tartamtu gravitasi
1.1-1.4
2.38
Kapadhetan
1.25-2.5 g / cm 3
-9999 g / cm 3
resistance
tahan panas, banyu tahan
tahan panas, impact tahan