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Mineralati

Minerals

Geigerite

geigerite

Mn²⁺5(AsO4)2(HAsO4)2·10H2O

Geigerite: Mineral information, data and localities.

Geigerite: Mineral information, data and localities. — via www.mindat.org · Source

Overview

Geigerite is a mineral, a complex hydrous manganese arsenate with formula: Mn5(AsO3OH)2(AsO4)2·10H2O. It forms triclinic pinacoidal, vitreous, colorless to red to brown crystals. It has a Mohs hardness of 3 and a specific gravity of 3.05. It was discovered in Grischun, Switzerland in 1989. It was named in honor of Thomas Geiger (1886–1976), Wiesendangen, Switzerland, who studied the Falotta manganese ores.

Scientific references

  1. Geigerite — Wikidata. https://www.wikidata.org/wiki/Q3759225 Link
  2. Geigerite — Wikipedia. https://en.wikipedia.org/wiki/Geigerite Link