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