Properties of Krikel lan Tuff
ukuran gandum
banget nggoleki-grained
grained nggoleki
rengat
ora kasedhiya
ora rata
porosity
Highly keropos
Highly keropos
luster
kurang
vitreous kanggo kurang
cleavage
slaty
ora kasedhiya
kateguhan
2.6
ora kasedhiya
tartamtu gravitasi
2.2-2.8
2.73
Kapadhetan
2.4-2.8 g / cm 3
1-1.8 g / cm 3
resistance
tahan panas, impact tahan
tahan panas, impact tahan, meksa tahan, nyandhang tahan