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