Greenland: Arfvedsonite Kakortokite
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Fact sheet
Description: 

Kakortokite is 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. Originally described from Kakortok (now Qaqortoq), Ilimaussaq, Greenland.

Rotation 1 - arfvedsonite

Rotation 2 - eudialyte

Rotation 3 - unknown

Rotation 4 - aenigmatite

Rotation 5 - microcline with albite inclusions

Many thanks to Alessandro Da Mommio for providing us with this sample. Alex describes the sample here.

In Place
In Time
Location description: 
Ilimaussaq Alkaline Complex, near Narsaq, Kitta Province, SW Greenland
Accuracy:
Timescale:
Not known
Ma = Millions of years ago
In Focus
Collection:
What\
Type:
Type: 
igneous
What\
Rock-forming minerals:

Rock forming mineral:

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