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Umbozerite

€33.00
A radiating aggregate of minute, black needles of umbozerite in ussingite
Karnasurt, Lovozero, Kola peninsula, Russia
Quantity
Available

A radiating aggregate of minute, black needles of umbozerite in ussingite. Other minerals present are natrolite, birnessite, and aegirine
BO_262
1 Item

Data sheet

Locality
Karnasurt, Lovozero massif, Kola peninsula, Russia
Size category
Small miniature
Size (cm)
5x2x2
Weight
24 g
Formula
Na3Sr4Th[Si(O,OH)3-4]8
Properties
Vitreous; prismatic crystals; brown/black