Properties of Krikel lan Lignite
ukuran gandum
banget nggoleki-grained
medium kanggo nggoleki coarse grained
rengat
ora kasedhiya
conchoidal
porosity
Highly keropos
Highly keropos
luster
kurang
kurang kanggo vitreous kanggo submetallic
kekuatan compressive
ora Sumadhiya
kateguhan
2.6
ora kasedhiya
tartamtu gravitasi
2.2-2.8
1.1-1.4
Kapadhetan
2.4-2.8 g / cm 3
800-801 g / cm 3
resistance
tahan panas, impact tahan
tahan panas