Properties of Borolanite lan Greywacke
ukuran gandum
grained nggoleki
sudut lan nggoleki
rengat
conchoidal kanggo ora rata
conchoidal
porosity
kurang keropos
Highly keropos
luster
greasy kanggo kurang
kurang
kekuatan compressive
ora Sumadhiya
kateguhan
ora kasedhiya
2.6
tartamtu gravitasi
2.6
2.2-2.8
transparan
tembus kanggo opaque
opaque
Kapadhetan
2.6 g / cm 3
2.6-2.61 g / cm 3
resistance
tahan panas, impact tahan, nyandhang tahan
tahan panas, impact tahan, meksa tahan