Properties of Felsite lan Nephelinite
ukuran gandum
grained nggoleki
grained nggoleki
porosity
banget kurang keropos
kurang keropos
luster
vitreous
vitreous kanggo metallic
kateguhan
ora kasedhiya
2.7
tartamtu gravitasi
2.6-2.7
2.4-2.9
Kapadhetan
2.6 g / cm 3
2.5-3 g / cm 3
resistance
tahan panas, impact tahan
tahan panas