Swedenborgite

antimonate

metamorphic

Formula: NaBe4Sb5+O7
Antimonate
Specific gravity: 4.285
Hardness: 8
Streak: White
Colour: Colourless, pale wine- to honey-yellow; colourless in transmitted light
Solubility: Insoluble in acids. Decomposed by fusion with Na2CO3 or KHSO4.
Environments:

Metamorphic environments

At the type locality, Långban, Filipstad, Värmland, Sweden, swedenborgite occurs in skarn from a metamorphosed Fe-Mn ore body, associated with richterite, manganoan biotite, hematite, calcite and bromellite.

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