Properties of Anthracite lan JASPEROID
ukuran gandum
medium kanggo nggoleki coarse grained
medium kanggo nggoleki coarse grained
rengat
conchoidal
conchoidal
porosity
kurang keropos
kurang keropos
luster
mengilap
vitreous lan mutiyara
tartamtu gravitasi
1.1-1.4
2.8-3
transparan
opaque
transparent kanggo Translucent
Kapadhetan
1.25-2.5 g / cm 3
2.8-2.9 g / cm 3
resistance
tahan panas, banyu tahan
tahan panas, meksa tahan, nyandhang tahan