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