ukuran gandum
medium kanggo nggoleki coarse grained
ora ditrapake
rengat
conchoidal
conchoidal
tilas
putih
ora kasedhiya
porosity
kurang keropos
kurang keropos
luster
subvitreous kanggo kurang
ora kasedhiya
kekuatan compressive
ora Sumadhiya
cleavage
ora kasedhiya
ora ditrapake
kateguhan
1
ora kasedhiya
tartamtu gravitasi
2.86-2.87
ora Sumadhiya
Kapadhetan
2.84-2.86 g / cm 3
ora Sumadhiya
resistance
tahan panas, meksa tahan
tahan panas, meksa tahan, nyandhang tahan