Properties of Tephrite lan Andesit
ukuran gandum
medium kanggo nggoleki coarse grained
banget nggoleki-grained
porosity
banget kurang keropos
kurang keropos
luster
subvitreous kanggo kurang
vitreous
cleavage
crenulation lan mrembet
ora kasedhiya
tartamtu gravitasi
2.86
2.5-2.8
Kapadhetan
2.8-2.9 g / cm 3
2.11-2.36 g / cm 3
resistance
tahan panas, impact tahan
tahan panas, meksa tahan, nyandhang tahan