Properties of Lignite lan Nephelinite
ukuran gandum
medium kanggo nggoleki coarse grained
grained nggoleki
porosity
Highly keropos
kurang keropos
luster
kurang kanggo vitreous kanggo submetallic
vitreous kanggo metallic
kekuatan compressive
ora Sumadhiya
kateguhan
ora kasedhiya
2.7
tartamtu gravitasi
1.1-1.4
2.4-2.9
Kapadhetan
800-801 g / cm 3
2.5-3 g / cm 3
resistance
tahan panas
tahan panas