Properties of Tephrite lan Comendite
ukuran gandum
medium kanggo nggoleki coarse grained
grained medium
tilas
bluish ireng
bluish ireng
porosity
banget kurang keropos
Highly keropos
luster
subvitreous kanggo kurang
kurang
cleavage
crenulation lan mrembet
ora kasedhiya
tartamtu gravitasi
2.86
2.38
Kapadhetan
2.8-2.9 g / cm 3
ora Sumadhiya
kapasitas panas tartamtu
ora Sumadhiya
resistance
tahan panas, impact tahan
tahan panas, impact tahan