Properties of Hornfels lan Dacite
ukuran gandum
grained nggoleki
medium kanggo nggoleki coarse grained
rengat
conchoidal
conchoidal
porosity
Highly keropos
kurang keropos
luster
mengilap
subvitreous kanggo kurang
kekuatan compressive
ora Sumadhiya
cleavage
sampurna
sampurna
kateguhan
durung ketemu
ora kasedhiya
tartamtu gravitasi
3.4-3.9
2.86-2.87
Kapadhetan
0.25-0.30 g / cm 3
2.77-2.771 g / cm 3
resistance
tahan panas, impact tahan, meksa tahan
tahan panas, impact tahan, meksa tahan, nyandhang tahan