Properties of Porphyry lan Kapur
ukuran gandum
grained nggoleki
banget nggoleki-grained
rengat
ora duwe aturan baku
ora kasedhiya
porosity
kurang keropos
Highly keropos
tartamtu gravitasi
2.5-4
2.3-2.4
transparan
tembus kanggo opaque
opaque
Kapadhetan
2.5-2.52 g / cm 3
2.49-2.50 g / cm 3
kapasitas panas tartamtu
ora Sumadhiya
resistance
tahan panas, impact tahan
tahan panas