Properties of Tuff lan Anthracite
ukuran gandum
grained nggoleki
medium kanggo nggoleki coarse grained
rengat
ora rata
conchoidal
porosity
Highly keropos
kurang keropos
luster
vitreous kanggo kurang
mengilap
kekuatan compressive
ora Sumadhiya
cleavage
ora kasedhiya
non-ana
kateguhan
ora kasedhiya
ora kasedhiya
tartamtu gravitasi
2.73
1.1-1.4
Kapadhetan
1-1.8 g / cm 3
1.25-2.5 g / cm 3
resistance
tahan panas, impact tahan, meksa tahan, nyandhang tahan
tahan panas, banyu tahan