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