Skogbyite, Zr(Mg2Mn3+4)SiO12, a new zirconium mineral in the braunite group from Långban, Bergslagen, Sweden

Jonsson, Erik; Hålenius, Ulf; Majka, Jaroslaw; Bosi, Ferdinando

doi:https://doi.org/10.5194/ejm-37-269-2025

Articles | Volume 37, issue 2

https://doi.org/10.5194/ejm-37-269-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

New minerals, nomenclature, and classification: EJM support

https://doi.org/10.5194/ejm-37-269-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 37, issue 2

Research article

|

23 Apr 2025

Research article |

| 23 Apr 2025

Skogbyite, Zr(Mg₂Mn³⁺₄)SiO₁₂, a new zirconium mineral in the braunite group from Långban, Bergslagen, Sweden

Erik Jonsson, Ulf Hålenius, Jaroslaw Majka, and Ferdinando Bosi

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Latest update: 23 Apr 2025

Short summary

Skogbyite, with the chemical formula Zr(Mg²⁺₂Mn³⁺₄)SiO₁₂, is a new species in the braunite group of minerals. It was discovered in a complex mineral assemblage, essentially a very poor manganese ore, from the Långban Fe–Mn oxide deposit, Värmland County, Bergslagen ore province, Sweden. It is named after the Swedish mineralogist Henrik Skogby (b. 1956). It is a new mineral attesting to the localised mobility and reactivity of zirconium under very special geological conditions.