Properties of Slate lan Hornfels
ukuran gandum
banget nggoleki-grained
grained nggoleki
rengat
splintery
conchoidal
tilas
cahya kanggo coklat peteng
dingerteni
porosity
kurang keropos
Highly keropos
kateguhan
1.2
durung ketemu
tartamtu gravitasi
2.65-2.8
3.4-3.9
Kapadhetan
2.6-2.8 g / cm 3
0.25-0.30 g / cm 3
resistance
tahan panas, impact tahan, meksa tahan, nyandhang tahan
tahan panas, impact tahan, meksa tahan