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