Sverigeite
Sverigeite is an IMA-recognized mineral species in the silicate class, with the chemical formula NaBe₂Mn²⁺₂SnSi₃O₁₂(OH).
It crystallizes in the orthorhombic crystal system (space group Imma).
Key properties: Mohs hardness 6.5; specific gravity 3.6; Light yellow streak; Vitreous on cleavages and fractures, dull on crystal faces luster; optically biaxial.
IMA symbol Svg, IMA status: approved, named in 1983.
Found on a mine dump; possibly part of a vein assemblage.
It is found associated with Mimetite, jacobsite, manganoan calcite, amphibole.
The name refers to the country where the mineral was found, Sweden, Sverige in Swedish.
Index entry. This entry combines official IMA/RRUFF species data with published physical-property data — a full written entry hasn’t been published yet.
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