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Strømsheia (Straumsheia), Valle, Aust-Agder, Norway

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Latitude & Longitude (WGS84): 59° 6' 30'' North , 7° 44' 42'' East
Latitude & Longitude (decimal): 59.10860,7.74526
Other regions containing this locality:Scandinavia
Köppen climate type:Dfc : Subarctic climate
Name(s) in local language(s):Strømsheia (Straumsheia), Valle kommune, Aust-Agder fylke, Norge


The story goes that a business man from Kristiansand by the name Peder Linde in about 1680 had found silver ore 20 km away from a farm by the name Strømme.

Here he built dam, smelter, several houses and he took out a significant quantity ore ("en stor Hoben Malm"). It is assumed that Linde mined what is known as the Gamle mine.

There is considerable uncertainty as to what made Linde stop mining, and a historical document asserting that he was afraid that the dammed up lake would flood the mine, seems improbable.

It seems more reasonable to assume that the rich ores from the beginning were exhausted, and further mining was not profitable.

From Linde's time, there was some rich ore left over near the mine, and in 1823 Ole Sangesand built a smelter near the mine. He managed to smelt a few "kløver" (This is the load a horse can carry) copper.

In 1825 professor Esmark visited Straumsheia and he claimed the mining right, but it is not known if he actually mined the deposits.

In 1844 was diplomat Reinhardt from Kristiansand owner of the deposits, and both the Amalie and Gamle mine were in production.

In 1845 a new company was founded, the Setesdalens kobberværk, and in that same year the obtained the rights to mine in the Kong Oscars, Amalie, Gamle, Kvævind and Brattebrok mines.

Later the right were taken over by the Evje nikkelverk who studied the area thoroughly, but concluded that further mining was not profitable.

It is assumed that the mines at the Straumsheia hardly can have produced more than 100 tons of copper.

N.B. On modern maps the Gamle mine is erronously called Kongens mine. The location of the latter is unknown at this point in time.


Coordinates © Kartverket - https://www.kartverket.no


Mineral List

Mineral list contains entries from the region specified including sub-localities

18 valid minerals.

Rock Types Recorded

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Rock list contains entries from the region specified including sub-localities

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Alphabetical List Tree Diagram

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Proterozoic
541 - 2500 Ma



ID: 3186372
Proterozoic crystalline metamorphic rocks

Age: Proterozoic (541 - 2500 Ma)

Lithology: Granitoid gneiss; orthogneiss/paragneiss

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Mesoproterozoic
1000 - 1600 Ma



ID: 3132753
Proterozoic II meta-sandstone

Age: Mesoproterozoic (1000 - 1600 Ma)

Description: undifferentiated metamorphic

Lithology: Major:{meta-sandstone}, Minor{conglomerate,marble,meta-volcanic rock group}

Reference: Asch, K. The 1:5M International Geological Map of Europe and Adjacent Areas: Development and Implementation of a GIS-enabled Concept. Geologisches Jahrbuch, SA 3. [147]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License


Localities in this Region


This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Scheerer, Th. (1848): Andet bidrag til Kundskab om norske Mineralier. Nyt Mag. Naturv. 5, 299-318[ With an analysis of chalcocite from Strømsheia]
Neumann, H. (1954): Kobberforekomstene på Straumsheia. Norges Geologiske Undersøkelse 191, 18-29

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