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Tumchaite
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| 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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