Properties of Greywacke lan Rhyolite
ukuran gandum
sudut lan nggoleki
gedhe lan coarse grained
rengat
conchoidal
sub-conchoidal
porosity
Highly keropos
Highly keropos
kekuatan compressive
ora Sumadhiya
cleavage
sampurna
ora kasedhiya
tartamtu gravitasi
2.2-2.8
2.65-2.67
Kapadhetan
2.6-2.61 g / cm 3
2.4-2.6 g / cm 3
resistance
tahan panas, impact tahan, meksa tahan
tahan panas, nyandhang tahan