Properties of Krikel Minyak lan Tephrite
ukuran gandum
banget nggoleki-grained
medium kanggo nggoleki coarse grained
rengat
ora kasedhiya
ora rata
porosity
Highly keropos
banget kurang keropos
luster
kurang
subvitreous kanggo kurang
kekuatan compressive
ora Sumadhiya
cleavage
slaty
crenulation lan mrembet
tartamtu gravitasi
2.2-2.8
2.86
Kapadhetan
2.4-2.8 g / cm 3
2.8-2.9 g / cm 3
resistance
tahan panas, impact tahan
tahan panas, impact tahan