Properties of Borolanite lan Rhyolite
ukuran gandum
grained nggoleki
gedhe lan coarse grained
rengat
conchoidal kanggo ora rata
sub-conchoidal
porosity
kurang keropos
Highly keropos
luster
greasy kanggo kurang
earthy
cleavage
miskin
ora kasedhiya
kateguhan
ora kasedhiya
2
tartamtu gravitasi
2.6
2.65-2.67
transparan
tembus kanggo opaque
opaque
Kapadhetan
2.6 g / cm 3
2.4-2.6 g / cm 3
resistance
tahan panas, impact tahan, nyandhang tahan
tahan panas, nyandhang tahan