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THE INDUSTRIAL MINERAL DATABASE
Occurence 4012 - 312 Feset II
(Object Id: 8438)
(Last updated: 05.02.2008)

Location
County: Telemark Municipality: Bamble (4012)
Map 1:50000: Kragerø (1712-4) Map 1:250000: Arendal
Coordinate system: EU89-UTM Zone 32
East: 531657 m. North: 6537238 m.
Longitude: 9.5505990 Latitude: 58.9735630
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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 and underground mining Historical production:


Mineralization
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
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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: 39422 312,01,00)

Location
County: Telemark Municipality: Bamble (4012)
Map 1:50000: Kragerø (1712-4) Map 1:250000: Arendal
Coordinate system: EU89-UTM Zone 32
East: 531719 m. North: 6537183 m.
Longitude: 9.5516660 Latitude: 58.9730680
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Resource
Resource Type: Feldspar Resource Subtype: Pegmatitic feldspar


Information(s) in free text format
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Bruddet er en del av driften som foregikk i Feset området. Lokaliteten er bekreftet av Alf Olav Larsen

Name of Locality: Neplandåsen1
(Object Id: 39423 312,02,00)

Location
County: Telemark Municipality: Bamble (4012)
Map 1:50000: Kragerø (1712-4) Map 1:250000: Arendal
Coordinate system: EU89-UTM Zone 32 (Coordinates NOT confirmed)
East: 531729 m. North: 6537439 m.
Longitude: 9.5518770 Latitude: 58.9753660
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Resource
Resource Type: Feldspar Resource Subtype: Pegmatitic feldspar

Resources and production
Activity: Mining Reserves:
Operating method: Open pit mining Historical production:


Information(s) in free text format
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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: 39539 312,03,00)

Location
County: Telemark Municipality: Bamble (4012)
Map 1:50000: Kragerø (1712-4) Map 1:250000: Arendal
Coordinate system: EU89-UTM Zone 32
East: 531753 m. North: 6537424 m.
Longitude: 9.5522920 Latitude: 58.9752210
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Resource
Resource Type: Feldspar Resource Subtype: Pegmatitic feldspar

Resources and production
Activity: Mining Reserves:
Operating method: Open pit mining Historical production:


Information(s) in free text format
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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: 39540 312,04,00)

Location
County: Telemark Municipality: Bamble (4012)
Map 1:50000: Kragerø (1712-4) Map 1:250000: Arendal
Coordinate system: EU89-UTM Zone 32
East: 531771 m. North: 6537516 m.
Longitude: 9.5526350 Latitude: 58.9760460
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Resource
Resource Type: Feldspar Resource Subtype: Pegmatitic feldspar

Resources and production
Activity: Mining Reserves:
Operating method: Open pit mining Historical production:


Information(s) in free text format
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Bruddet er en del av driften som foregikk i Feset området. Lokaliteten er bekreftet av Alf Olav Larsen

Name of Locality: Askedalen
(Object Id: 39541 312,05,00)

Location
County: Telemark Municipality: Bamble (4012)
Map 1:50000: Kragerø (1712-4) Map 1:250000: Arendal
Coordinate system: EU89-UTM Zone 32
East: 531626 m. North: 6537415 m.
Longitude: 9.5500990 Latitude: 58.9751580
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Resource
Resource Type: Feldspar Resource Subtype: Pegmatitic feldspar

Resources and production
Activity: Mining Reserves:
Operating method: Open pit mining Historical production:


Information(s) in free text format
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Bruddet er en del av driften som foregikk i Feset området. Lokaliteten er bekreftet av Alf Olav Larsen


The fact sheet was created on 04.05.2024

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