Properties of Anthracite lan Alkali Feldspar Granit
ukuran gandum
medium kanggo nggoleki coarse grained
gedhe lan coarse grained
rengat
conchoidal
ora kasedhiya
porosity
kurang keropos
kurang keropos
luster
mengilap
kurang kanggo grainy karo bagean kala-kala pearly lan vitreous
kekuatan compressive
ora Sumadhiya
cleavage
non-ana
ora kasedhiya
kateguhan
ora kasedhiya
ora kasedhiya
tartamtu gravitasi
1.1-1.4
2.6-2.7
Kapadhetan
1.25-2.5 g / cm 3
2.6-2.8 g / cm 3
resistance
tahan panas, banyu tahan
tahan panas, nyandhang tahan