Chemistry:Zincobotryogen

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Short description: Hydrous sulfate mineral
Zincobotryogen
Zincobotryogen.jpg
General
CategoryMineral
Formula
(repeating unit)
(Zn,Mg,Mn)Fe3+(SO
4
)
2
(OH· 7H
2
O
Crystal systemMonoclinic
Space groupP21/n (no. 14)
Identification
Mohs scale hardness2.5
Specific gravity2.201
References[1][2][3][4]

Zincobotryogen is a hydrous sulfate mineral with the chemical formula (Zn,Mg,Mn)Fe3+(SO
4
)
2
(OH· 7H
2
O
. It forms bright orange red monoclinic prismatic crystals that exhibit a vitreous to greasy luster. Its specific gravity is 2.201 and it has a Mohs hardness of 2.5.

It is a rare secondary mineral which forms in arid climates by alteration of other zinc minerals. It was named for its zinc content and it relationship to botryogen. It has been reported from the Xitieshan Mine, Qinghai, Northwest Region, China ; Rammelsberg mine, near Goslar, Harz Mountains, Germany ; the Bisbee district of Arizona and various mines in Colorado.

References

  1. Süsse, P. (15 June 1968). "Die Kristallstruktur des Botryogens". Acta Crystallographica Section B: Structural Crystallography and Crystal Chemistry 24 (6): 760–767. doi:10.1107/S0567740868003171. 
  2. "Mineral data Pub. 2001". http://rruff.geo.arizona.edu/doclib/hom/zincobotryogen.pdf. 
  3. "Zincobotryogen". http://webmineral.com/data/Zincobotryogen.shtml. 
  4. "Zincobotryogen". http://www.mindat.org/min-4411.html. 
  5. Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine 85 (3): 291–320. doi:10.1180/mgm.2021.43. Bibcode2021MinM...85..291W.