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Kakortokite

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About KakortokiteHide

A local name for a variety of agpaitic nepheline syenite displaying pronounced cumulate textures and igneous layering with a repetition of layers enriched in alkali feldspar, eudialyte and arfvedsonite.


Classification of KakortokiteHide

Mineralogy of KakortokiteHide

Essential minerals - these are minerals that are required within the classification of this rock:
Amphibole > Arfvedsonite[Na][Na2][Fe2+4Fe3+]Si8O22(OH)2
EudialyteNa15Ca6(Fe2+,Mn2+)3Zr3[Si25O73](O,OH,H2O)3(OH,Cl)2
Feldspar > Alkali FeldsparFeldspar Group minerals rich in Potassium or Sodium.
Feldspathoid > NephelineNa3K(Al4Si4O16)

References for KakortokiteHide

Reference List:
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Le Maitre (ed.) (2002) Igneous Rocks - A Classification and Glossary of Terms. Cambridge Press

Internet Links for KakortokiteHide

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