1 Properties
1.1 fisik
1.1.1 atose
1.1.2 ukuran gandum
grained medium
coarse grained
1.1.3 rengat
mrembet
conchoidal kanggo ora rata
1.1.4 tilas
bluish ireng
cahya kanggo coklat peteng
1.1.5 porosity
Highly keropos
Highly keropos
1.1.6 luster
kurang
grainy, mutiyara lan vitreous
1.1.7 kekuatan compressive
92.40 n / mm 2ora Sumadhiya
0.15
450
1.1.8 cleavage
ora kasedhiya
ora kasedhiya
1.1.9 kateguhan
1.1.10 tartamtu gravitasi
1.1.11 transparan
1.1.12 Kapadhetan
ora Sumadhiya2.2-2.35 g / cm 3
0
1400
1.2 situs termal
1.2.1 kapasitas panas tartamtu
ora Sumadhiya0.75 kj / kg k
0.14
3.2
1.2.2 resistance
tahan panas, impact tahan
tahan panas, impact tahan