Properties of Nephelinite lan Pegmatite
ukuran gandum
grained nggoleki
medium kanggo coarse grained
porosity
kurang keropos
kurang keropos
luster
vitreous kanggo metallic
grainy, mutiyara lan vitreous
tartamtu gravitasi
2.4-2.9
2.6-2.63
transparan
opaque
tembus kanggo opaque
Kapadhetan
2.5-3 g / cm 3
2.6-2.65 g / cm 3
kapasitas panas tartamtu
ora Sumadhiya
resistance
tahan panas
tahan panas, impact tahan, meksa tahan