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