(Last updated: 20.06.2025)
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Norsk versjon | ||||
| THE INDUSTRIAL MINERAL DATABASE | |||||
| Occurence 4014 - 314 Stutsholmen | |||||
| (Object Id: 8408) (Last updated: 20.06.2025) |
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| Location |
| County: | Telemark | Municipality: | Kragerø (4014) |
| Map 1:50000: | Kragerø (1712-4) | Map 1:250000: | Arendal |
| Coordinate system: | EU89-UTM Zone 32 |
| East: | 533412 m. | North: | 6526961 m. |
| Longitude: | 9.5795800 | Latitude: | 58.8811400 |
| Show on map |
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| Resource |
| Resource Type: | Feldspar | Resource Subtype: | Pegmatitic feldspar |
| Importance |
| Raw material meaning: | Little Importance (reg. 18.02.2015) |
| Resources and production |
| Activity: | Mining | Reserves: | ||
| Operating method: | Open pit mining | Historical production: |
Products |
| Element/product | Crude ore grade or quality | Reg. date | |
| Pegmatitic feldspar | % | 15.10.2024 |
Mineralization |
| Genesis: | Form: | |||
| Main texture: | Min. distribution: |
| Main grain size: |
| Strike/Dip: | Direction: | |||
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| Stratigraphic classification of host rock |
| Era: | Period: |
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| Group: | Formation: |
Information(s) in free text format |
| Free text |
| Beliggenhet: N58.88114°, Ø9.57958°. Umiddelbart ved sjøen på sydsiden av Stutsholmen, omkring 40 m SØ for fritidsboligen Stutsholmen 10. Det er bygd et bryggeanlegg og et stort båthus i det tidligere pegmatittbruddet. Geologiske forhold: Pegmatitten opptrer i et drag av amfibolitt-kvartsbergarter og følger vesentlig strøket av disse ØNØ. Det er imidlertid flere linseformede apofyser mot NØ. Forekomsten er beskrevet av Andersen (1931, s. 27-28). Mineraler: Pegmatitten består hovedsakelig av betydelige individer av gulaktig kalifeltspat og kvarts, litt plagioklas, muskovitt og biotitt. Det er lite skriftgranitt i forekomsten. Arbeid og historie: Bruddet har antagelig vært 30-40 m bredt langs pegmatittgangen og lå kun få meter fra sjøkanten. |
Bibliography: |
| From NGU's Reference Archive: |
| Andersen, Olaf , 1931 |
| Feltspat II. Forekomster i fylkene Buskerud og Telemark, i flere herreder i Aust-Agder og i Hidra i Vest-Agder. |
| ;Norges geologiske undersøkelse;TIDSSKRIFTARTIKKEL;NGU; No.128B;1-109 pages |
| Abstract: | |
| Summary s. 151. Feldspar deposits in Southern Norway. (Feltspat II by Olaf Andersen and Feltspat III by Tom F.W. Barth) A few years ago one of the writers published a general outline of the properties, mode of occurrence, exploitation and uses of feldspar with special reference to the Norwegian feldspar industry (Olaf Anderesn, Feltspat I, Norges geologiske undersøkelse, Nr. 128A, 1926). To that publication the reader is referred for general in- formation regarding the feldspar industry of Norway. In the present publi- cation brief descriptions are given of 262 individual feldspar deoposits, all situated in the part of Southern Norway that extends, generally in a rather narrow zone, along the coast westward from the neighbourhood of Kragerø to the island Hidra near Flekkefjord. The deposita described lie in the counties Buskerud, Telemark, Aust-Agder and Vest-Agder, and are distributed over a large number of local districts (herreder). The most important districts at present are those in the neighbourhood of Kragerø ((Bamble, Skåtøy and Sannidal), those along the coast between Risør and Arendal (especially Søndeled, Holt and Froland), and the two districts north of Kristiansand (Iveland and Evje). Each description contains information about the dimensions and general attitude of the pagmatite body and the feldspar. |
| Larsen, Alf Olav , 2025 |
| Pegmatittbrudd i Telemark |
| ;BOK;212 s. pages |
| The fact sheet was created on 12.07.2025 |
| Questions or comments regarding the fact sheet can be emailed to: ressursdatabaser@ngu.no |
| Copyright © 2025 Geological Survey of Norway |