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