- Zincobotryogen
Zincobotryogen is a hydrous
sulfate mineral with formula (Zn,Mg,Mn)Fe3+(SO4)2(OH)·7H2O. It forms bright orange redmonoclinic prismatic crystals that exhibit a vitreous to greasy luster. Itsspecific gravity is 2.201 and it has aMohs 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 tobotryogen . It has been reported from the Xitieshan Mine, Qinghai, Northwest Region,China ; Rammelsberg mine, near Goslar,Harz Mountains ,Germany ; the Bisbee district ofArizona and various mines inColorado .References
* [http://rruff.geo.arizona.edu/doclib/hom/zincobotryogen.pdf Mineral data Pub. 2001]
* [http://webmineral.com/data/Zincobotryogen.shtml Webmineral data]
* [http://www.mindat.org/min-4411.html Mindat with locality data]
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