Properties of Pumice lan Nephelinite
ukuran gandum
grained nggoleki
grained nggoleki
tilas
putih, greenish putih utawa abu-abu
putih
porosity
Highly keropos
kurang keropos
luster
earthy
vitreous kanggo metallic
tartamtu gravitasi
2.86
2.4-2.9
Kapadhetan
0.25-0.3 g / cm 3
2.5-3 g / cm 3
resistance
impact tahan, meksa tahan
tahan panas