Vicanite-(Ce)

General Information:
 Chemical Formula:
(Ca,Ce,La,Th)15As+++++(As+++0.5,Na0.5)Fe+++Si6B4O40F7
 Environment:
Inside a volcanic ejectum from a pyroclastic formation.
 IMA Status:
Approved IMA
 Locality:
Vican (Vico lake) volcanic complex at Tre Croci, Ventralla (north of Rome), Latium, Veterbo provicne, Italy.
 Name Origin:
After its locality.
Physical Properties:
 Cleavage:
None
 Color:
yellow green or green.
 Density:
4.73
 Diaphaniety:
Transparent
 Habits:
Anhedral Grains - Granular minerals without the expression of crystal shapes, Crystalline - Fine - Occurs as well-formed fine sized crystals.,
 Hardness:
5.5-6 - Knife Blade-Orthoclase
 Luminescence:
Non-fluorescent.
 Luster:
Vitreous - Adamantine
 Streak:
white
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