Properties of Hornfels lan Tuff
ukuran gandum
grained nggoleki
grained nggoleki
rengat
conchoidal
ora rata
porosity
Highly keropos
Highly keropos
luster
mengilap
vitreous kanggo kurang
cleavage
sampurna
ora kasedhiya
kateguhan
durung ketemu
ora kasedhiya
tartamtu gravitasi
3.4-3.9
2.73
Kapadhetan
0.25-0.30 g / cm 3
1-1.8 g / cm 3
resistance
tahan panas, impact tahan, meksa tahan
tahan panas, impact tahan, meksa tahan, nyandhang tahan