Properties of Tephrite lan Itacolumite
ukuran gandum
medium kanggo nggoleki coarse grained
coarse utawa nggoleki
rengat
ora rata
conchoidal
porosity
banget kurang keropos
Highly keropos
luster
subvitreous kanggo kurang
kurang
cleavage
crenulation lan mrembet
sampurna
tartamtu gravitasi
2.86
2.2-2.8
Kapadhetan
2.8-2.9 g / cm 3
2.2-2.8 g / cm 3
resistance
tahan panas, impact tahan
tahan panas, impact tahan, meksa tahan