Kvanefjeld

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File:Villiaumitic lujavrite, Illímaussaq Complex, Kvanefjeld GD.jpg
Villiaumitic lujavrite, Kvanefjeld. Field of view is 1.75 cm wide. Click for link to additional photos.

Kvanefjeld (or Kuannersuit), in Greenland, is the site of a mineral deposit, which is claimed to be the world's second-largest deposit of rare earth oxides, and the sixth-largest deposit of uranium.[1] There are also substantial sodium fluoride deposits, and Kvanefjeld is thought to be one of the largest multi-element deposits of its kind in the world.[2]

File:Tugtupite large.jpg
Tugtupite from Kvanefjeld, Greenland.

A recent relaxation of regulations by the government of Greenland has opened up the possibility of large-scale mining by Greenland Minerals and Energy.[3] The Kvanefjeld site is part of the Ilimaussaq intrusive complex.[4] Rare earths and uranium are typically concentrated in lujavrite.[5] Lujavrite, a dark agpaitic nepheline syenite, occurs as an internal layer in the north Ilimaussaq complex. The uppermost sections generally have the highest rare earth elements, uranium and zinc grades.

Lujavrite is a rare variety of nepheline syenite having amphibole, aegirine pyroxene, nepheline and feldspar. The red spots in the rock are crystals of the rare halide mineral villiaumite (NaF - sodium fluoride).

The Kvanefjeld project is 100% owned by ASX-listed Greenland Minerals and Energy Limited.[6]

Kvanefjeld is already known among mineral collectors as a source of fluorescent minerals such as tugtupite and chkalovite.[7] Lua error in package.lua at line 80: module 'strict' not found.

References

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