Properties of Greywacke lan Essexite
ukuran gandum
sudut lan nggoleki
grained nggoleki
rengat
conchoidal
conchoidal
porosity
Highly keropos
Highly keropos
luster
kurang
ora kasedhiya
cleavage
sampurna
ora kasedhiya
tartamtu gravitasi
2.2-2.8
ora Sumadhiya
Kapadhetan
2.6-2.61 g / cm 3
ora Sumadhiya
resistance
tahan panas, impact tahan, meksa tahan
impact tahan, meksa tahan, nyandhang tahan