Properties of Gneiss lan Luxullianite
ukuran gandum
medium kanggo coarse grained
gedhe lan coarse grained
rengat
ora duwe aturan baku
ora kasedhiya
porosity
banget kurang keropos
kurang keropos
luster
kurang
kurang kanggo grainy karo bagean kala-kala pearly lan vitreous
cleavage
miskin
ora kasedhiya
kateguhan
1.2
ora kasedhiya
tartamtu gravitasi
2.5-2.7
2.6-2.7
transparan
tembus kanggo opaque
opaque
Kapadhetan
2.6-2.9 g / cm 3
2.6-2.8 g / cm 3
kapasitas panas tartamtu
ora Sumadhiya
resistance
tahan panas, meksa tahan, ngeruk tahan, nyandhang tahan
tahan panas, nyandhang tahan