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Ekerite

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A local name for a peralkaline alkali-feldspar-granite from Eiker (Eker), Oslo district, Norway, comtaining anorthoclase, microperthite with small amounts of arfvedsonite and aegirine.


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Classification of EkeriteHide

Mineralogy of EkeriteHide

Essential minerals - these are minerals that are required within the classification of this rock:
Amphibole > Arfvedsonite[Na][Na2][Fe2+4Fe3+]Si8O22(OH)2
Feldspar > Alkali Feldspar > Anorthoclase(Na,K)AlSi3O8
MicroperthiteA microscopic intergrowth of albite or other plagioclase and orthoclase or microcline.
Pyroxene > Clinopyroxene > AegirineNaFe3+Si2O6

Internet Links for EkeriteHide

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