Properties of Variolite lan Slate
ukuran gandum
ora ditrapake
banget nggoleki-grained
rengat
conchoidal
splintery
tilas
putih kanggo werna abu-abu
cahya kanggo coklat peteng
porosity
kurang keropos
kurang keropos
luster
ora kasedhiya
kurang
cleavage
ora kasedhiya
slaty
tartamtu gravitasi
2.8-3
2.65-2.8
Kapadhetan
2.9-3.1 g / cm 3
2.6-2.8 g / cm 3
resistance
tahan panas, meksa tahan, nyandhang tahan
tahan panas, impact tahan, meksa tahan, nyandhang tahan