Properties of Nephelinite lan Tachylite
ukuran gandum
grained nggoleki
medium kanggo nggoleki coarse grained
porosity
kurang keropos
kurang keropos
luster
vitreous kanggo metallic
resinous
cleavage
cacat
ora kasedhiya
kateguhan
2.7
ora kasedhiya
tartamtu gravitasi
2.4-2.9
2.4
Kapadhetan
2.5-3 g / cm 3
3.058 g / cm 3
resistance
tahan panas
tahan panas, impact tahan, nyandhang tahan