Properties of Metapelite lan Tephrite
ukuran gandum
medium kanggo nggoleki coarse grained
medium kanggo nggoleki coarse grained
tilas
dingerteni
bluish ireng
porosity
Highly keropos
banget kurang keropos
luster
earthy
subvitreous kanggo kurang
kekuatan compressive
ora Sumadhiya
cleavage
ora kasedhiya
crenulation lan mrembet
kateguhan
ora kasedhiya
2.4
tartamtu gravitasi
3.4-3.7
2.86
Kapadhetan
0-300 g / cm 3
2.8-2.9 g / cm 3
resistance
tahan panas, impact tahan, meksa tahan
tahan panas, impact tahan