Properties of Essexite lan Websterite
ukuran gandum
grained nggoleki
coarse grained
rengat
conchoidal
ora rata
tilas
ireng
putih, greenish putih utawa abu-abu
porosity
Highly keropos
kurang keropos
luster
ora kasedhiya
kurang kanggo vitreous kanggo submetallic
cleavage
ora kasedhiya
ora duwe aturan baku
kateguhan
1.6
ora kasedhiya
tartamtu gravitasi
ora Sumadhiya
3.2-3.5
Kapadhetan
ora Sumadhiya
3.1-3.6 g / cm 3
resistance
impact tahan, meksa tahan, nyandhang tahan
impact tahan, meksa tahan, nyandhang tahan