Properties of Pumice lan Rapakivi Granit
ukuran gandum
grained nggoleki
gedhe lan coarse grained
rengat
planar
ora kasedhiya
tilas
putih, greenish putih utawa abu-abu
putih
porosity
Highly keropos
kurang keropos
luster
earthy
kurang kanggo grainy karo bagean kala-kala pearly lan vitreous
cleavage
sampurna
ora kasedhiya
kateguhan
3
ora kasedhiya
tartamtu gravitasi
2.86
2.6-2.7
Kapadhetan
0.25-0.3 g / cm 3
2.6-2.8 g / cm 3
resistance
impact tahan, meksa tahan
tahan panas, nyandhang tahan