Properties of Variolite lan Pyrolite
ukuran gandum
ora ditrapake
coarse grained
rengat
conchoidal
ora duwe aturan baku
tilas
putih kanggo werna abu-abu
putih
porosity
kurang keropos
kurang keropos
luster
ora kasedhiya
mengilap
cleavage
ora kasedhiya
cacat
tartamtu gravitasi
2.8-3
3-3.01
transparan
opaque
tembus kanggo opaque
Kapadhetan
2.9-3.1 g / cm 3
3.1-3.4 g / cm 3
resistance
tahan panas, meksa tahan, nyandhang tahan
tahan panas, meksa tahan, nyandhang tahan