Properties of Hornfels lan Minette
ukuran gandum
grained nggoleki
nggoleki kanggo coarse grained
rengat
conchoidal
conchoidal
porosity
Highly keropos
banget kurang keropos
luster
mengilap
subvitreous kanggo kurang
kekuatan compressive
ora Sumadhiya
cleavage
sampurna
conchoidal
kateguhan
durung ketemu
ora kasedhiya
tartamtu gravitasi
3.4-3.9
2.86-2.87
transparan
opaque
tembus kanggo opaque
Kapadhetan
0.25-0.30 g / cm 3
2.95-2.96 g / cm 3
kapasitas panas tartamtu
ora Sumadhiya
resistance
tahan panas, impact tahan, meksa tahan
tahan panas, impact tahan