Greenland: Eudialyte Kakortokite
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Fact sheet
Description: 

Sample MTD05 collected by Michael T. Doel

Described as having tugtupite, polylithionite etc. River boulder.

Rotation 1 -

Rotation 2 - microcline K(AlSi3O8)

Rotation 3 - polylithionite KLi2Al(Si4O10)(F,OH)2

Rotation 4 - eudialyte Na15Ca6(Fe2+,Mn2+)3Zr3[Si25O73](O,OH,H2O)3(OH,Cl)2 , arfvedsonite and ?

Ilimaussaq is the type locality for eudialyte

Kakortokite: 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.

In Place
In Time
Location description: 
Illimaussaq intrusion, Narsaq river, Kitaa Province, SW Greenland
Accuracy:
Location precision: 
Moderate
Timescale:
Not known
Ma = Millions of years ago
In Focus
Collection:
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Type:
Type: 
igneous
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Category:

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Rock-forming minerals:

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