- Zykaite
Zykaite is a grey-white
mineral consisting ofarsenic ,hydrogen ,iron ,sulfur andoxygen . Thisdull mineral is verysoft with aMohs hardness of only 2. Zykaite istranslucent and has anorthorhombic crystal system . Its commonassociates includelimonite ,gypsum ,scorodite ,quartz andarsenopyrite . It is found in theCzech Republic ,Poland andGermany .Zykaite was named in honour of Dr. Vaclav Zyka, a Czech
geochemist .References
http://www.Mindat.org
http://www.Webmineral.com
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