Properties of Vogesite lan Anthracite
ukuran gandum
nggoleki kanggo coarse grained
medium kanggo nggoleki coarse grained
rengat
conchoidal
conchoidal
porosity
banget kurang keropos
kurang keropos
luster
subvitreous kanggo kurang
mengilap
cleavage
conchoidal
non-ana
kateguhan
ora kasedhiya
ora kasedhiya
tartamtu gravitasi
2.86-2.87
1.1-1.4
transparan
tembus kanggo opaque
opaque
Kapadhetan
2.95-2.96 g / cm 3
1.25-2.5 g / cm 3
kapasitas panas tartamtu
ora Sumadhiya
resistance
tahan panas, impact tahan
tahan panas, banyu tahan