Properties of Hornfels lan Adakite
ukuran gandum
grained nggoleki
nggoleki grained medium
rengat
conchoidal
conchoidal
tilas
dingerteni
bluish ireng
porosity
Highly keropos
kurang keropos
luster
mengilap
grainy, mutiyara lan vitreous
kekuatan compressive
ora Sumadhiya
cleavage
sampurna
ora kasedhiya
kateguhan
durung ketemu
ora kasedhiya
tartamtu gravitasi
3.4-3.9
ora Sumadhiya
Kapadhetan
0.25-0.30 g / cm 3
ora Sumadhiya
kapasitas panas tartamtu
ora Sumadhiya
resistance
tahan panas, impact tahan, meksa tahan
tahan panas, meksa tahan, nyandhang tahan