Crystal properties

Crystal growth method

Skull Melting process

Crystal growth orientation

(001), (111), (110)

Maximum size

ca. 7x7x10 mm

Variations

Dopands on request

Crystallographic structure

a = 5,411 A

Mineralogical synonyms

None

Twinning structure

Twinfree

Colour

Black to dark blue

Density

7,215 g/cm³

Melting point

2400 °C

Boiling point

3500 °C

Hardnes

7 (Mohs)