Properties of Ganister lan Tuff
ukuran gandum
coarse utawa nggoleki
grained nggoleki
rengat
splintery
ora rata
porosity
Highly keropos
Highly keropos
luster
kurang
vitreous kanggo kurang
cleavage
sampurna
ora kasedhiya
kateguhan
2.6
ora kasedhiya
tartamtu gravitasi
2.2-2.8
2.73
Kapadhetan
2.2-2.8 g / cm 3
1-1.8 g / cm 3
resistance
tahan panas, impact tahan, meksa tahan
tahan panas, impact tahan, meksa tahan, nyandhang tahan