Properties of Pumice lan Skarn
ukuran gandum
grained nggoleki
grained nggoleki
rengat
planar
ora duwe aturan baku
tilas
putih, greenish putih utawa abu-abu
cahya kanggo coklat peteng
porosity
Highly keropos
kurang keropos
luster
earthy
waxy lan kurang
kekuatan compressive
ora Sumadhiya
tartamtu gravitasi
2.86
2.86
Kapadhetan
0.25-0.3 g / cm 3
2.8-2.9 g / cm 3
resistance
impact tahan, meksa tahan
tahan panas