Properties of Nephelinite lan Batubara
ukuran gandum
grained nggoleki
medium kanggo nggoleki coarse grained
porosity
kurang keropos
kurang keropos
luster
vitreous kanggo metallic
kurang kanggo vitreous kanggo submetallic
kekuatan compressive
ora Sumadhiya
kateguhan
2.7
ora kasedhiya
tartamtu gravitasi
2.4-2.9
1.1-1.4
Kapadhetan
2.5-3 g / cm 3
1100-1400 g / cm 3
resistance
tahan panas
tahan panas