1 Properties
1.1 fisik
1.1.1 atose
1.1.2 ukuran gandum
grained medium
1.1.3 rengat
mrembet
1.1.4 tilas
bluish ireng
1.1.5 porosity
Highly keropos
1.1.6 luster
kurang
1.1.7 kekuatan compressive
1.1.8 cleavage
ora kasedhiya
1.1.9 kateguhan
2
1.1.10 tartamtu gravitasi
1.1.11 transparan
opaque
1.1.12 Kapadhetan
1.2 situs termal
1.2.1 kapasitas panas tartamtu
1.2.2 resistance
tahan panas, impact tahan