Properties of Porphyry lan Essexite
ukuran gandum
grained nggoleki
grained nggoleki
rengat
ora duwe aturan baku
conchoidal
porosity
kurang keropos
Highly keropos
luster
kurang
ora kasedhiya
cleavage
cacat
ora kasedhiya
tartamtu gravitasi
2.5-4
ora Sumadhiya
transparan
tembus kanggo opaque
opaque
Kapadhetan
2.5-2.52 g / cm 3
ora Sumadhiya
resistance
tahan panas, impact tahan
impact tahan, meksa tahan, nyandhang tahan