Mineralpedia Details for Manganonordite-(Ce)
Manganonordite-(Ce)
Named for being the Mn2+ analogue of the mineral nordite-Ce. Found only at the co-type localities at the Kedykverpakhk Mountain and the Karnasurt Mountain, both in the Lovozero massif of the Kola Peninsula of Russia. Occurs as colorless to pale brown, thin, platy crystals in rosettes or spherulites in sodalite syenites and ussingite veins.
Ref. Minerals and their Localities, Bernard, J.H. and Hyršl, J. (2004)
- Formula
- Na3SrCeMn2+Si6O17
- Crystal System
- Orthorhombic
- Crystal Habit
- Tabular, Rosette
- Cleavage
- Perfect, None, None
- Luster
- Vitreous (Glassy)
- Color
- pale brown, colorless, brown
- Streak
- white
- Class
- Orthorhombic - Dipyramidal
- Fracture
- Brittle - Uneven
- Hardness
- 5-5.5
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Manganonordite-(Ce) from Pegmatite #60, Karnasurt Mt., Lovozero Massif, Kola Peninsula, Russia
Brown to amber embedded crystals froming a rosette to 5mm. RARE.
Click thumbnail images for larger view.
