Properties of Watu Pasir lan Anthracite
ukuran gandum
coarse utawa nggoleki
medium kanggo nggoleki coarse grained
rengat
conchoidal
conchoidal
porosity
Highly keropos
kurang keropos
kekuatan compressive
ora Sumadhiya
cleavage
sampurna
non-ana
kateguhan
2.6
ora kasedhiya
tartamtu gravitasi
2.2-2.8
1.1-1.4
Kapadhetan
2.2-2.8 g / cm 3
1.25-2.5 g / cm 3
resistance
tahan panas, impact tahan, meksa tahan
tahan panas, banyu tahan