Properties of Tephrite lan Greywacke
ukuran gandum
medium kanggo nggoleki coarse grained
sudut lan nggoleki
rengat
ora rata
conchoidal
porosity
banget kurang keropos
Highly keropos
luster
subvitreous kanggo kurang
kurang
kekuatan compressive
ora Sumadhiya
cleavage
crenulation lan mrembet
sampurna
tartamtu gravitasi
2.86
2.2-2.8
Kapadhetan
2.8-2.9 g / cm 3
2.6-2.61 g / cm 3
kapasitas panas tartamtu
ora Sumadhiya
resistance
tahan panas, impact tahan
tahan panas, impact tahan, meksa tahan