Properties of Rhyolite lan Foidolite
ukuran gandum
gedhe lan coarse grained
medium kanggo nggoleki coarse grained
rengat
sub-conchoidal
conchoidal
porosity
Highly keropos
banget kurang keropos
luster
earthy
subvitreous kanggo kurang
kekuatan compressive
ora Sumadhiya
cleavage
ora kasedhiya
sampurna
kateguhan
2
ora kasedhiya
tartamtu gravitasi
2.65-2.67
2.86
Kapadhetan
2.4-2.6 g / cm 3
ora Sumadhiya
resistance
tahan panas, nyandhang tahan
tahan panas, nyandhang tahan