Properties of Phonolite lan Nephelinite
ukuran gandum
grained nggoleki
grained nggoleki
rengat
conchoidal kanggo ora rata
flat
porosity
kurang keropos
kurang keropos
luster
greasy kanggo kurang
vitreous kanggo metallic
kateguhan
ora kasedhiya
2.7
tartamtu gravitasi
2.6
2.4-2.9
transparan
tembus kanggo opaque
opaque
Kapadhetan
2.6 g / cm 3
2.5-3 g / cm 3
kapasitas panas tartamtu
ora Sumadhiya
resistance
tahan panas, impact tahan, nyandhang tahan
tahan panas