page_title: Hisingerite
hierarchical_section_title: Hisingerite
caption_attribution_description: English: Hisingerite Locality: Långban, Filipstad, Värmland, Sweden (Locality at mindat.org) Size: 7.3 x 5.2 x 2.4 cm. Hisingerite is an uncommon secondary, hydrated, iron silicate. Very rare, crystallized plates of reddish-brown, silver metallic-lustre hisingerite crystals are festooned on the sculptural matrix of this very rich specimen from the famous Langban deposit of Sweden. Hisingerite specimens are very rare from Langban and this choice piece is from the collection of Dr. Mark Feinglos, a noted rarities collector. Deutsch: Hisingerit Fundort: Långban, Filipstad, Värmland, Schweden (Fundort bei mindat.org) Größe: 7.3 x 5.2 x 2.4 cm.
context_page_description: Hisingerite is an iron(III) phyllosilicate mineral with formula Fe³⁺₂Si₂O₅(OH)₄·2H₂O. A black or dark brown, lustrous secondary mineral, it is formed by the weathering or hydrothermal alteration of other iron silicate and sulfide minerals.
  It was first described in 1828 for an occurrence in Riddarhyttan, Vastmanland, Sweden. It was named after Wilhelm Hisinger, a Swedish chemist.
  There are also aluminian hisingerite variety in which one of the iron atoms is replaced by aluminium and chrome-alumina-hisingerite variety in which chromium substitutes for iron.
context_section_description: Hisingerite is an iron(III) phyllosilicate mineral with formula Fe³⁺₂Si₂O₅(OH)₄·2H₂O.  A black or dark brown, lustrous secondary mineral, it is formed by the weathering or hydrothermal alteration of other iron silicate and sulfide minerals.
  It was first described in 1828 for an occurrence in Riddarhyttan, Vastmanland, Sweden. It was named after Wilhelm Hisinger (1766–1852), a Swedish chemist.
  There are also aluminian hisingerite variety in which one of the iron atoms is replaced by aluminium and chrome-alumina-hisingerite variety in which chromium substitutes for iron.
caption: Crystallized plates of reddish-brown, silver metallic-lustre hisingerite crystals
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