Properties of Slate lan Borolanite
ukuran gandum
banget nggoleki-grained
grained nggoleki
rengat
splintery
conchoidal kanggo ora rata
tilas
cahya kanggo coklat peteng
putih
porosity
kurang keropos
kurang keropos
luster
kurang
greasy kanggo kurang
kateguhan
1.2
ora kasedhiya
tartamtu gravitasi
2.65-2.8
2.6
transparan
opaque
tembus kanggo opaque
Kapadhetan
2.6-2.8 g / cm 3
2.6 g / cm 3
kapasitas panas tartamtu
ora Sumadhiya
resistance
tahan panas, impact tahan, meksa tahan, nyandhang tahan
tahan panas, impact tahan, nyandhang tahan