Properties of Slate lan Krikel
ukuran gandum
banget nggoleki-grained
banget nggoleki-grained
rengat
splintery
ora kasedhiya
tilas
cahya kanggo coklat peteng
putih
porosity
kurang keropos
Highly keropos
tartamtu gravitasi
2.65-2.8
2.2-2.8
Kapadhetan
2.6-2.8 g / cm 3
2.4-2.8 g / cm 3
resistance
tahan panas, impact tahan, meksa tahan, nyandhang tahan
tahan panas, impact tahan