Properties of Websterite lan Lignite
ukuran gandum
coarse grained
medium kanggo nggoleki coarse grained
rengat
ora rata
conchoidal
tilas
putih, greenish putih utawa abu-abu
ireng
porosity
kurang keropos
Highly keropos
luster
kurang kanggo vitreous kanggo submetallic
kurang kanggo vitreous kanggo submetallic
cleavage
ora duwe aturan baku
non-ana
kateguhan
ora kasedhiya
ora kasedhiya
tartamtu gravitasi
3.2-3.5
1.1-1.4
Kapadhetan
3.1-3.6 g / cm 3
800-801 g / cm 3
kapasitas panas tartamtu
ora Sumadhiya
resistance
impact tahan, meksa tahan, nyandhang tahan
tahan panas