General Information:
Chemical Formula:
Be3(Sc,Al)2Si6O18
Composition:
(Molecular Weight = 564.46 gm)
Scandium 11.95 % Sc
Beryllium 4.79 % Be
Aluminum 2.39 % Al
Silicon 29.85 % Si
Oxygen 51.02 % O
Empirical Formula:
Be3Sc1.5Al0.5Si6O18
Environment:
Pegmatites and alpine-vein rocks.
Locality:
Lake Maggiore, Italy.
Name Origin:
Named after the Italian engineer, A. E. Bazzi.
Physical Properties:
Cleavage:
[0001] Indistinct
Color:
azure blue or dark blue.
Density:
2.8
Diaphaniety:
Translucent to subtranslucent
Habits:
Crystalline - Fine - Occurs as well-formed fine sized crystals., Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).,
Hardness:
6.5 - Pyrite
Luminescence:
Non-fluorescent.
Luster:
Vitreous (Glassy)
Streak:
pale bluish white
More details...