Properties of Hornfels lan Aplite
ukuran gandum
grained nggoleki
banget nggoleki-grained
rengat
conchoidal
ora kasedhiya
porosity
Highly keropos
kurang keropos
luster
mengilap
kurang kanggo mutiyara kanggo subvitreous
cleavage
sampurna
ora kasedhiya
kateguhan
durung ketemu
ora kasedhiya
tartamtu gravitasi
3.4-3.9
2.6
Kapadhetan
0.25-0.30 g / cm 3
2.6 g / cm 3
resistance
tahan panas, impact tahan, meksa tahan
tahan panas, nyandhang tahan