Properties of Gneiss lan Coquina
ukuran gandum
medium kanggo coarse grained
coarse grained
rengat
ora duwe aturan baku
ora duwe aturan baku
porosity
banget kurang keropos
Highly keropos
luster
kurang
kurang kanggo vitreous kanggo submetallic
kekuatan compressive
ora Sumadhiya
cleavage
miskin
ora kasedhiya
kateguhan
1.2
ora kasedhiya
tartamtu gravitasi
2.5-2.7
1.10-2.24
transparan
tembus kanggo opaque
opaque
Kapadhetan
2.6-2.9 g / cm 3
2.8-2.9 g / cm 3
resistance
tahan panas, meksa tahan, ngeruk tahan, nyandhang tahan
tahan panas, impact tahan, meksa tahan, nyandhang tahan