Ivanyukite-Na : Na2Ti4(SiO4)3(OH)2O2·6H2O
Natrolite : Na2Al2Si3O10·2H2O
Photo added to mindat.org
“A yellowish 0,2 mm crystal of Ivanyukite-Na and colourless Natrolite from the type locality. Specimen and photo: Knut Eldjarn”
Knut Eldjarn - 19th March 2011
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