Properties of Slate lan Scoria
ukuran gandum
banget nggoleki-grained
grained nggoleki
rengat
splintery
conchoidal
tilas
cahya kanggo coklat peteng
putih
porosity
kurang keropos
Highly keropos
luster
kurang
subvitreous kanggo kurang
kekuatan compressive
ora Sumadhiya
tartamtu gravitasi
2.65-2.8
ora Sumadhiya
Kapadhetan
2.6-2.8 g / cm 3
ora Sumadhiya
kapasitas panas tartamtu
ora Sumadhiya
resistance
tahan panas, impact tahan, meksa tahan, nyandhang tahan
tahan panas, impact tahan, meksa tahan, nyandhang tahan