Properties of Nephelinite lan Variolite
ukuran gandum
grained nggoleki
ora ditrapake
tilas
putih
putih kanggo werna abu-abu
porosity
kurang keropos
kurang keropos
luster
vitreous kanggo metallic
ora kasedhiya
cleavage
cacat
ora kasedhiya
tartamtu gravitasi
2.4-2.9
2.8-3
Kapadhetan
2.5-3 g / cm 3
2.9-3.1 g / cm 3
resistance
tahan panas
tahan panas, meksa tahan, nyandhang tahan