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