Bazzite

Formula:  Be₃(Sc,Al)₂Si₆O₁₈

Origin of name:  For Alessandro Bazzi, Italian engineer and discover of the mineral from Baveno, Italy

Crystal system:  Hexagonal

Crystal class:  6/m 2/m 2/m

Twinning:

Unit cell: a = 9.501 Å, c = 9.178 Å

Colour:  Intense blue

Diaphaneity:  Transparent

Luster:  Vitreous

Habit:  Crystals acicular, micro

Hardness:  6.5 to 7

Specific gravity:  2.77

Cleavage:  None

Tenacity:

Streak:

Synonyms/varieties:

Comments:  Sc analogue of beryl. Electromagnetic. Found in miarolitic cavities in granite, in alpine veins, in granite pegmatites