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Norsk versjon | ||||
| THE INDUSTRIAL MINERAL DATABASE | |||||
| Deposit Area 814 - 312 | |||||
| (Last updated 05.feb.2008) | |||||
Name of Deposit Area : Feset II |
| (Object Id : 0814,312,00,00) |
| Location |
| County : | Telemark (08) | Municipality : | Bamble (0814) |
| Map 1:50000: | Kragerø (1712-4) | Map 1:250000: | Arendal |
| Marking point: | Longitude: | 9.5505990 | Latitude: | 58.9735630 |
| EU89-UTM Zone 32 | (Coordinates IS confirmed) |
| X-coord: | 531657 m. | Y-coord: | 6537238 m. |
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| Commodity |
| Main Type: | Feldspar | Sub Type: | Pegmatitic feldspar |
| Production |
| Activity: | Mining | Reserves: | ||
| Prod. method: | Open pit and underground mining | Production: | ||
| Prod. status: | Disused, closed | Volume of dump: |
| Importance |
| Public: | Little Importance (reg. 18.02.2015) |
| Economical: | Minor interest , (Confirmed 05.feb.2008 by Jan Egil Wanvik) |
Products |
| Element/product | Crude ore grade or quality | |
| PEGFEL | % |
Mineralization |
| Era: | Period: | |||
| Dating: | Method: | |||
| Genesis: | Form: | |||
| Main texture: | Min. distribution: |
| Main grain size: |
| Strike/Dip: | Direction: | |||
| Plunge: |
| Stratigraphic classification of host rock |
| Era: | Period: |
| Province: | ||
| Geotec.unit: | ||
| Tectonic complex: | ||
| Igneous complex: |
| Group: | Formation: |
Information(s) in free text format |
| Free text |
| Omtrent 200 m nord for Feset I bruddet ligger et annet feltspatbrudd som i følge O. Andersen har levert store mengder felttspat. I 1926 ble det f.eks. utvunnet ca 330 tonn feltspat. Bruddet har form av en ca 10 m dyp rund synk med 30 m's diameter. Pegmatitten består av en uregelmessig blanding som holder overveiende kali-natronfeltspat i stolper på ca 1/2 m's størrelse, atskillig kvarts, betydelig mindre mengder kalk-natronfeltspat, litt skriftgranitt, muskovitt i små flak og litt biotitt.. Kali-natronfeltspaten er en rødlig variant med omkring 2% Na2O og 13% K2O; svarende til 15% natronfeltspat og 76% kalifeltspat. Kalk-natronfeltspaten har omkring 27% kalifeltpat og 73% natronfeltspat. |
Bibliography: |
| From NGU's Reference Archive: |
| Andersen, Olaf , 1926 |
| Feltspat I. Feltspatmineralenes egenskaper, forekomst og praktiske utnyttelse med særlig henblikk på den norske feltspatindustri. |
| ;Norges geologiske undersøkelse;TIDSSKRIFTARTIKKEL;NGU; No.128A;1-142 pages |
| Abstract: | |
| The present publication is a description, in non-technical language, of the properties, geological mode of occurrences, exploitation, and uses of feldspar with special reference to the Norwegian feldspar industry. Systematic descriptions of commercial deposits are reserved for a future publication to be issued as no. 128b of the present series. Chapter 1 contains a general description of the mineralogical, chemical, and physical properties of the various species of the feldspar group. - Table I gives the theoretical chemical composition of mixture of potash feldspar and soda feldspar for intervals of 10 pct. by weight. - Table 2 gives the corresponding figures for mixtures of soda feldspar and lime feldspar. - Table 3 contains a few examples of chemical analyses of feldspar from Norwegian occurrences. The analyses, of which No.s 1-5 are new, represent selected, "pure" feldspar. No.s 1, 2 and 3 are commercial "potash feldspars" from granite pegmatites, No. 4 a soda-potash feldspar from syenite pegmatite, and No. 5 a soda feldspar of commercial quality from a pyroxene bearing granite pegmatite. No.s 6 and 7 are old analyses respectively of oligoclase from granite pegmatite and labradorite from anorthosite. - Table 4 contains multiplication factors for the recalculation of feldspar analyses. |
Name of Locality : Feset SØ |
| (Object Id : 0814,312,01,00) |
| Location |
| County : | Telemark (08) | Municipality : | Bamble (0814) |
| Map 1:50000: | Kragerø (1712-4) | Map 1:250000: | Arendal |
| Marking point: | Longitude: | 9.5516660 | Latitude: | 58.9730680 |
| EU89-UTM Zone 32 | (Coordinates IS confirmed) |
| X-coord: | 531719 m. | Y-coord: | 6537183 m. |
|
|
| Commodity |
| Main Type: | Feldspar | Sub Type: | Pegmatitic feldspar |
Information(s) in free text format |
| Free text |
| Bruddet er en del av driften som foregikk i Feset området. Lokaliteten er bekreftet av Alf Olav Larsen |
Name of Locality : Neplandåsen1 |
| (Object Id : 0814,312,02,00) |
| Location |
| County : | Telemark (08) | Municipality : | Bamble (0814) |
| Map 1:50000: | Kragerø (1712-4) | Map 1:250000: | Arendal |
| Marking point: | Longitude: | 9.5518770 | Latitude: | 58.9753660 |
| EU89-UTM Zone 32 | (Coordinates NOT confirmed) |
| X-coord: | 531729 m. | Y-coord: | 6537439 m. |
|
|
| Commodity |
| Main Type: | Feldspar | Sub Type: | Pegmatitic feldspar |
| Production |
| Activity: | Mining | Reserves: | ||
| Prod. method: | Open pit mining | Production: | ||
| Prod. status: | Disused, closed | Volume of dump: |
Information(s) in free text format |
| Free text |
| Bruddet er en del av driften som foregikk i Feset området. Lokaliteten er bekreftet av Alf Olav Larsen |
Name of Locality : Neplandåsen 2 |
| (Object Id : 0814,312,03,00) |
| Location |
| County : | Telemark (08) | Municipality : | Bamble (0814) |
| Map 1:50000: | Kragerø (1712-4) | Map 1:250000: | Arendal |
| Marking point: | Longitude: | 9.5522920 | Latitude: | 58.9752210 |
| EU89-UTM Zone 32 | (Coordinates IS confirmed) |
| X-coord: | 531753 m. | Y-coord: | 6537424 m. |
|
|
| Commodity |
| Main Type: | Feldspar | Sub Type: | Pegmatitic feldspar |
| Production |
| Activity: | Mining | Reserves: | ||
| Prod. method: | Open pit mining | Production: | ||
| Prod. status: | Disused, closed | Volume of dump: |
Information(s) in free text format |
| Free text |
| Bruddet er en del av driften som foregikk i Feset området. Lokaliteten er bekreftet av Alf Olav Larsen |
Name of Locality : Neplandåsen 3 |
| (Object Id : 0814,312,04,00) |
| Location |
| County : | Telemark (08) | Municipality : | Bamble (0814) |
| Map 1:50000: | Kragerø (1712-4) | Map 1:250000: | Arendal |
| Marking point: | Longitude: | 9.5526350 | Latitude: | 58.9760460 |
| EU89-UTM Zone 32 | (Coordinates IS confirmed) |
| X-coord: | 531771 m. | Y-coord: | 6537516 m. |
|
|
| Commodity |
| Main Type: | Feldspar | Sub Type: | Pegmatitic feldspar |
| Production |
| Activity: | Mining | Reserves: | ||
| Prod. method: | Open pit mining | Production: | ||
| Prod. status: | Disused, closed | Volume of dump: |
Information(s) in free text format |
| Free text |
| Bruddet er en del av driften som foregikk i Feset området. Lokaliteten er bekreftet av Alf Olav Larsen |
Name of Locality : Askedalen |
| (Object Id : 0814,312,05,00) |
| Location |
| County : | Telemark (08) | Municipality : | Bamble (0814) |
| Map 1:50000: | Kragerø (1712-4) | Map 1:250000: | Arendal |
| Marking point: | Longitude: | 9.5500990 | Latitude: | 58.9751580 |
| EU89-UTM Zone 32 | (Coordinates IS confirmed) |
| X-coord: | 531626 m. | Y-coord: | 6537415 m. |
|
|
| Commodity |
| Main Type: | Feldspar | Sub Type: | Pegmatitic feldspar |
| Production |
| Activity: | Mining | Reserves: | ||
| Prod. method: | Open pit mining | Production: | ||
| Prod. status: | Disused, closed | Volume of dump: |
Information(s) in free text format |
| Free text |
| Bruddet er en del av driften som foregikk i Feset området. Lokaliteten er bekreftet av Alf Olav Larsen |
| The fact sheet was created on 22.11.2024 |
| Questions or comments regarding the fact sheet can be emailed to: ressursdatabaser@ngu.no |
| Copyright © 2024 Geological Survey of Norway |