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