Geigerite

From Wikipedia, the free encyclopedia

Geigerite is a mineral, a complex hydrous manganese arsenate with formula: Mn5(AsO3OH)2(AsO4)2·10H2O. It forms triclinic pinacoidal vitreous colorless, red to brown crystals. It has a Mohs hardness of 3 and a specific gravity of 3.05.[1][2]

It was discovered in Grischun, Switzerland in 1989. It was named in honor of Dr. Thomas Geiger (1886–1976), Wiesendangen, Switzerland, who studied the Falotta manganese ores.[3]

[edit] See also

[edit] References

  1. ^ http://webmineral.com/data/Geigerite.shtml Webmineral data
  2. ^ http://www.mindat.org/min-1669.html Mindat
  3. ^ http://rruff.geo.arizona.edu/doclib/hom/geigerite.pdf Mineral Handbook
 This article about a specific mineral or mineraloid is a stub. You can help Wikipedia by expanding it.
v • d • e
Manganese minerals
Borates
Carbonates
Oxides
Phosphates
Silicates
Sulfides
Other
Axinite (borosilicate) · Geigerite (arsenate) · Manganese nodule (various) · Zincobotryogen (sulfate)
Languages