Properties of Slate lan Gritstone
ukuran gandum
banget nggoleki-grained
coarse grained
rengat
splintery
conchoidal
tilas
cahya kanggo coklat peteng
putih
porosity
kurang keropos
Highly keropos
kateguhan
1.2
ora kasedhiya
tartamtu gravitasi
2.65-2.8
2.250
Kapadhetan
2.6-2.8 g / cm 3
2.2 g / cm 3
resistance
tahan panas, impact tahan, meksa tahan, nyandhang tahan
tahan panas, impact tahan, meksa tahan