Properties of Slate lan Trondhjemite
ukuran gandum
banget nggoleki-grained
medium kanggo nggoleki coarse grained
rengat
splintery
conchoidal
tilas
cahya kanggo coklat peteng
bluish ireng
porosity
kurang keropos
banget kurang keropos
luster
kurang
subvitreous kanggo kurang
kekuatan compressive
ora Sumadhiya
cleavage
slaty
ora kasedhiya
tartamtu gravitasi
2.65-2.8
2.86-3
Kapadhetan
2.6-2.8 g / cm 3
2.73 g / cm 3
resistance
tahan panas, impact tahan, meksa tahan, nyandhang tahan
tahan panas, meksa tahan, nyandhang tahan