Properties of Marl lan Porphyry
ukuran gandum
banget nggoleki-grained
grained nggoleki
rengat
conchoidal
ora duwe aturan baku
porosity
Highly keropos
kurang keropos
cleavage
ora kasedhiya
cacat
tartamtu gravitasi
2.2-2.8
2.5-4
transparan
opaque
tembus kanggo opaque
Kapadhetan
2.4-2.8 g / cm 3
2.5-2.52 g / cm 3
resistance
tahan panas, impact tahan
tahan panas, impact tahan