Properties of Tuff lan Sovite
ukuran gandum
grained nggoleki
medium kanggo nggoleki coarse grained
rengat
ora rata
conchoidal
porosity
Highly keropos
kurang keropos
luster
vitreous kanggo kurang
subvitreous kanggo kurang
tartamtu gravitasi
2.73
2.86-2.87
Kapadhetan
1-1.8 g / cm 3
2.84-2.86 g / cm 3
resistance
tahan panas, impact tahan, meksa tahan, nyandhang tahan
tahan panas, meksa tahan