Properties of Tephrite lan Variolite
ukuran gandum
medium kanggo nggoleki coarse grained
ora ditrapake
rengat
ora rata
conchoidal
tilas
bluish ireng
putih kanggo werna abu-abu
porosity
banget kurang keropos
kurang keropos
luster
subvitreous kanggo kurang
ora kasedhiya
cleavage
crenulation lan mrembet
ora kasedhiya
tartamtu gravitasi
2.86
2.8-3
Kapadhetan
2.8-2.9 g / cm 3
2.9-3.1 g / cm 3
resistance
tahan panas, impact tahan
tahan panas, meksa tahan, nyandhang tahan