Properties of Anthracite lan Quartzite
ukuran gandum
medium kanggo nggoleki coarse grained
grained medium
rengat
conchoidal
ora rata, splintery utawa conchoidal
porosity
kurang keropos
kurang keropos
kekuatan compressive
ora Sumadhiya
cleavage
non-ana
indiscernible
kateguhan
ora kasedhiya
1.9
tartamtu gravitasi
1.1-1.4
2.6-2.8
transparan
opaque
transparent kanggo Translucent
Kapadhetan
1.25-2.5 g / cm 3
2.32-2.42 g / cm 3
resistance
tahan panas, banyu tahan
tahan panas, impact tahan, meksa tahan, nyandhang tahan