Properties of Anthracite lan Essexite
ukuran gandum
medium kanggo nggoleki coarse grained
grained nggoleki
rengat
conchoidal
conchoidal
porosity
kurang keropos
Highly keropos
luster
mengilap
ora kasedhiya
cleavage
non-ana
ora kasedhiya
kateguhan
ora kasedhiya
1.6
tartamtu gravitasi
1.1-1.4
ora Sumadhiya
Kapadhetan
1.25-2.5 g / cm 3
ora Sumadhiya
kapasitas panas tartamtu
ora Sumadhiya
resistance
tahan panas, banyu tahan
impact tahan, meksa tahan, nyandhang tahan