Properties of Anthracite lan Dacite
ukuran gandum
medium kanggo nggoleki coarse grained
medium kanggo nggoleki coarse grained
rengat
conchoidal
conchoidal
porosity
kurang keropos
kurang keropos
luster
mengilap
subvitreous kanggo kurang
cleavage
non-ana
sampurna
kateguhan
ora kasedhiya
ora kasedhiya
tartamtu gravitasi
1.1-1.4
2.86-2.87
Kapadhetan
1.25-2.5 g / cm 3
2.77-2.771 g / cm 3
resistance
tahan panas, banyu tahan
tahan panas, impact tahan, meksa tahan, nyandhang tahan