ukuran gandum
grained medium
medium kanggo nggoleki coarse grained
rengat
ora rata, splintery utawa conchoidal
conchoidal
porosity
kurang keropos
banget kurang keropos
luster
vitreous
subvitreous kanggo kurang
kekuatan compressive
ora Sumadhiya
cleavage
indiscernible
sampurna
kateguhan
1.9
ora kasedhiya
tartamtu gravitasi
2.6-2.8
2.86
transparan
transparent kanggo Translucent
tembus
Kapadhetan
2.32-2.42 g / cm 3
ora Sumadhiya
kapasitas panas tartamtu
ora Sumadhiya
resistance
tahan panas, impact tahan, meksa tahan, nyandhang tahan
tahan panas, nyandhang tahan