Properties of Hornfels lan Variolite
ukuran gandum
grained nggoleki
ora ditrapake
rengat
conchoidal
conchoidal
tilas
dingerteni
putih kanggo werna abu-abu
porosity
Highly keropos
kurang keropos
luster
mengilap
ora kasedhiya
cleavage
sampurna
ora kasedhiya
kateguhan
durung ketemu
2.3
tartamtu gravitasi
3.4-3.9
2.8-3
Kapadhetan
0.25-0.30 g / cm 3
2.9-3.1 g / cm 3
resistance
tahan panas, impact tahan, meksa tahan
tahan panas, meksa tahan, nyandhang tahan