Properties of Hornfels lan Novaculite
ukuran gandum
grained nggoleki
grained nggoleki
rengat
conchoidal
conchoidal
porosity
Highly keropos
kurang keropos
luster
mengilap
waxy lan kurang
cleavage
sampurna
non-ana
kateguhan
durung ketemu
1.5
tartamtu gravitasi
3.4-3.9
2.5-2.7
transparan
opaque
tembus kanggo opaque
Kapadhetan
0.25-0.30 g / cm 3
2.7 g / cm 3
resistance
tahan panas, impact tahan, meksa tahan
tahan panas, impact tahan, meksa tahan, nyandhang tahan