Properties of Comendite lan Rhyolite
ukuran gandum
grained medium
gedhe lan coarse grained
rengat
mrembet
sub-conchoidal
tilas
bluish ireng
wernane
porosity
Highly keropos
Highly keropos
cleavage
ora kasedhiya
ora kasedhiya
tartamtu gravitasi
2.38
2.65-2.67
Kapadhetan
ora Sumadhiya
2.4-2.6 g / cm 3
resistance
tahan panas, impact tahan
tahan panas, nyandhang tahan