Properties of Rhyolite lan Batubara
ukuran gandum
gedhe lan coarse grained
medium kanggo nggoleki coarse grained
rengat
sub-conchoidal
conchoidal
porosity
Highly keropos
kurang keropos
luster
earthy
kurang kanggo vitreous kanggo submetallic
kekuatan compressive
ora Sumadhiya
cleavage
ora kasedhiya
non-ana
kateguhan
2
ora kasedhiya
tartamtu gravitasi
2.65-2.67
1.1-1.4
Kapadhetan
2.4-2.6 g / cm 3
1100-1400 g / cm 3
kapasitas panas tartamtu
ora Sumadhiya
resistance
tahan panas, nyandhang tahan
tahan panas