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Richterite, Tridymite


Richterite : Na[CaNa][Mg5][(OH)2|Si8O22], Tridymite : SiO2

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Locality: Hendersons Quarry, Mt. Ngongotaha, Rotorua, Bay of Plenty, North Island, New Zealand
Richterite on tridymite. FOV = ~1.0 mm. Collection and photograph of Rod Martin
(From recalculation of data given for ferrikatophorite)

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