Properties of Hornfels lan Icelandite
ukuran gandum
grained nggoleki
banget nggoleki-grained
rengat
conchoidal
ora rata
porosity
Highly keropos
kurang keropos
kekuatan compressive
ora Sumadhiya
cleavage
sampurna
ora kasedhiya
kateguhan
durung ketemu
1.1
tartamtu gravitasi
3.4-3.9
2.5-2.8
Kapadhetan
0.25-0.30 g / cm 3
2.11-2.36 g / cm 3
resistance
tahan panas, impact tahan, meksa tahan
tahan panas, meksa tahan, ngeruk tahan, nyandhang tahan