1 Properties
1.1 fisik
1.1.1 atose
1.1.2 ukuran gandum
grained medium
grained nggoleki
1.1.3 rengat
1.1.4 tilas
bluish ireng
cahya kanggo coklat peteng
1.1.5 porosity
Highly keropos
kurang keropos
1.1.6 luster
1.1.7 kekuatan compressive
92.40 n / mm 237.40 n / mm 2
0.15
450
1.1.8 cleavage
1.1.9 kateguhan
1.1.10 tartamtu gravitasi
1.1.11 transparan
1.1.12 Kapadhetan
ora Sumadhiya2.9-3.1 g / cm 3
0
1400
1.2 situs termal
1.2.1 kapasitas panas tartamtu
ora Sumadhiya0.84 kj / kg k
0.14
3.2
1.2.2 resistance
tahan panas, impact tahan
tahan panas, meksa tahan, nyandhang tahan