Mineral Specimen and Product Inventory Search

Availability

Sold

Locality

Norra Kärr, Gränna, Jönköping, Småland, Sweden

Formula

NaNa₂(Fe²⁺₄Al)Si₈O₂₂(OH)₂

Size

4.5 x 4 x 1.8 cm - Miniature

Dark green prismatic crystals embedded in a matrix with other amphiboles, namely Fluoro-leakite. Both of these minerals are members of a huge supergroup and are basically sodium amphiboles, a rock-forming mineral.