Properties of Slate lan Ganister
ukuran gandum
banget nggoleki-grained
coarse utawa nggoleki
rengat
splintery
splintery
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
2.2-2.8 g / cm 3
resistance
tahan panas, impact tahan, meksa tahan, nyandhang tahan
tahan panas, impact tahan, meksa tahan