Properties of Variolite lan Nephelinite
ukuran gandum
ora ditrapake
grained nggoleki
tilas
putih kanggo werna abu-abu
putih
porosity
kurang keropos
kurang keropos
luster
ora kasedhiya
vitreous kanggo metallic
cleavage
ora kasedhiya
cacat
tartamtu gravitasi
2.8-3
2.4-2.9
Kapadhetan
2.9-3.1 g / cm 3
2.5-3 g / cm 3
resistance
tahan panas, meksa tahan, nyandhang tahan
tahan panas