Properties of Hornfels lan Pegmatite
ukuran gandum
grained nggoleki
medium kanggo coarse grained
rengat
conchoidal
conchoidal
porosity
Highly keropos
kurang keropos
luster
mengilap
grainy, mutiyara lan vitreous
cleavage
sampurna
sampurna
kateguhan
durung ketemu
2.1
tartamtu gravitasi
3.4-3.9
2.6-2.63
transparan
opaque
tembus kanggo opaque
Kapadhetan
0.25-0.30 g / cm 3
2.6-2.65 g / cm 3
kapasitas panas tartamtu
ora Sumadhiya
resistance
tahan panas, impact tahan, meksa tahan
tahan panas, impact tahan, meksa tahan