Wairakite is a zeolite mineral with an analcime structure but containing a calcium ion. The chemical composition is Ca8(Al16Si32O96)*16H2O. It is named for the location of its discovery in North Island, New Zealand, by Alfred Steiner in 1955. The mineral has since been found in metamorphic rocks and in geothermal areas. It was most likely first su...
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http://en.wikipedia.org/wiki/Wairakite
hydrated calcium aluminosilicate mineral present in hot-spring deposits, notably those at Wairakei, New Zealand, and Onikobe, Japan. Like analcite, ...
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http://www.britannica.com/eb/a-z/w/2
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