Tumchaite     Image

Tumchaite Image

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 Tumchaite

Large Tumchaite Image

Mineral: Tumchaite: Na2(Zr,Sn)Si4O11ยท2(H2O)
Comments: SEM photomicrograph of typical tumchaite crystals shaped by the prism {hkl}, and by two pinacoids {100} and {h0l}. Grains are tabular on (100), elongated along [001]. (AmMin 85:1517).
Location: Vuoriyarvi alkali-ultrabasic massif, Murmansk Region, Russia.
Scale: See Image.
Copyright: © American Mineralogist
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