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Umbozerite
€30.00
Sheaf-like, radiating aggregate of black umbozerite needles in altered ussingiteKarnasurt, Lovozero, Kola peninsula, Russia
Sheaf-like, radiating aggregate of black umbozerite needles/tabular prisms in altered ussingite, with aegirine
BO_263
1 Item
Data sheet
- Locality
- Karnasurt, Lovozero massif, Kola peninsula, Russia
- Size category
- Small miniature
- Size (cm)
- 5x3x1.5
- Weight
- 20 g
- Formula
- Na3Sr4Th[Si(O,OH)3-4]8
- Properties
- Vitreous; prismatic crystals; brown/black
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Sheaf-like, radiating aggregate of black umbozerite needles in altered ussingiteKarnasurt, Lovozero, Kola peninsula, Russia