Properties of Slate lan Tuff
ukuran gandum
banget nggoleki-grained
grained nggoleki
rengat
splintery
ora rata
tilas
cahya kanggo coklat peteng
putih
porosity
kurang keropos
Highly keropos
luster
kurang
vitreous kanggo kurang
tartamtu gravitasi
2.65-2.8
2.73
Kapadhetan
2.6-2.8 g / cm 3
1-1.8 g / cm 3
resistance
tahan panas, impact tahan, meksa tahan, nyandhang tahan
tahan panas, impact tahan, meksa tahan, nyandhang tahan