Kungnat

Thanks to O.V.Petersen (for information from his articles) and J.Frisch for specimens.

Kungnat (named for a mountain) is a complex of 2,5x5km, that consists of 2 syenite stocks and a narrow ring dike. The stock in the west contains peralkaline granites, the one in the east syenites, and the ring alkaline gabbro.

The first specimens were collected here as early as 1806-1813 with certainty, but probably even before. There is no real mineral list, the following is but a small beginning.

Mineral list:

aegirine

aegirine-augite

andesine

apatite grp.

astrophyllite

augite

amphibole grp.

barkevikite

biotite

fayalite

ferroaugite

ferrohedenbergite

hastingsite

soda-orthoclase

perthite

quartz

riebeckite

Groennedal-Ika

This is a nepheline-syenite-carbonatite (and many other related rock types) intrusion without spectacular minerals. But even though my mineral list is more than incomplete.

Mineral list:

aegirine

aegirine-augite

amphibole grp.

analcime

apatite grp.

arfvedsonite

barite

biotite

burbankite

calcite

cancrinite

feldspar grp.

fluorite

magnetite

natrolite

nepheline

pyrite

riebeckite

siderite

sodalite

sphalerite

&Suggested reading:

Petersen,O.V., K.Secher: The minerals of Greenland, Mineralogical Record, 24(1993), 2, pp.47-48

Woolley, A.R.: Alkaline Rocks and Carbonatites of the World, Part 1: North and South America, British Museum (Natural History), London 1987

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