Tungsandsforekomster i Danmark

Abstract

Occurrences of heavy minerals along the coasts of Denmark have been investigated for the purpose of clarifying the question of to what extent these deposits contain minerals of economic importance in such quantities as to make extraction worth while.

The plan included field studies of the nature and size of the occurrences as well as laboratory analyses of the mineral content in the sand.

It has been ascertained that there are about 25 kilometres of beach in all with a high content of well-concentrated heavy mineral sand. The quantity of this sand is estimated at about 100,000 tons. Most of the large deposits were found to be in northern and western Jutland. It was ascertained that the following minerals assumed to be of economic importance were present: magnetite, ilmenite (containing haematite), and zircon. Other minerals, for example garnet, may prove useful as a by-product of extraction.