Properties of Gneiss lan Mangerite
ukuran gandum
medium kanggo coarse grained
medium kanggo nggoleki coarse grained
rengat
ora duwe aturan baku
ora kasedhiya
porosity
banget kurang keropos
kurang keropos
luster
kurang
subvitreous kanggo kurang
cleavage
miskin
ora kasedhiya
kateguhan
1.2
ora kasedhiya
tartamtu gravitasi
2.5-2.7
2.8-3
transparan
tembus kanggo opaque
opaque
Kapadhetan
2.6-2.9 g / cm 3
2.9-2.91 g / cm 3
kapasitas panas tartamtu
ora Sumadhiya
resistance
tahan panas, meksa tahan, ngeruk tahan, nyandhang tahan
tahan panas, impact tahan, meksa tahan