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	THE ???? DATABASE
	Occurence 0 - 000 FEIL
	(Object Id: ) (Last updated: 15.03.2024)

Products

	Element/product	Crude ore grade or quality	Reg. date
	Ti	1.8 %	15.03.2024
	TiO2	3 %	13.12.2001

Mineralization

	Era:	Proterozoic	Period:	Mesoproterozoic
	Genesis:	Unknown	Form:	Irregular
	Main texture:	Banded	Min. distribution:	Disseminated (<20 % ore minerals)

Main grain size:

Medium grained (1-3 mm)

Main alteration:

	Strike/Dip:		Direction:
			Plunge:

Ti-deposit type(s)

	Main type:	Metasomatic	Ilm/Mt-ratio:
	Sub type:	Rutile in albitite	%TiO(Ore):
	Titanium province:	Arendal - Bamble	%P2O5(Ore):
	Host rock:	Albitite	%MgO(Ilm):
	Main Ti mineral:	Ilmenite	%V2O3(Mt):
			ppm U (Rutile):

Stratigraphic classification of host rock

Era:

Proterozoic

Period:

Mesoproterozoic

	Province:	South Norwegian Basement Province
	Geotec.unit:	Bamble Complex
	Tectonic complex:
	Igneous complex:

Group:

Formation:

Mineralogy

	Relationship	Mineral	Amount
	Gangue mineral	Albite	Major mineral (>10%)
	Gangue mineral	Potassic feldspar	Subordinate mineral (1-10%)
	Gangue mineral	Tourmaline	Subordinate mineral (1-10%)
	Gangue mineral	Biotite	Accessory mineral (<1%)
	Gangue mineral	Titanite	Accessory mineral (<1%)
	Ore mineral	Rutile	Major mineral (>10%)

Lithology:

	Relationship	Rock	Origin
	Host rock	Albitite
			Metamorphic facies :Amphibolite
	Wall rock	Amphibolite
			Metamorphic facies :Amphibolite

Information(s) in free text format

Free text

The rutile-bearing albitite (kragerøite) at Lindvikkollen was mined for rutile during the period 1901-50 and produced about 3000 tonnes of rutile concentrate (Bugge 1978). The deposit was investigated by the company A/S Sydvaranger in the middle 1970'ies. This investigation included geological mapping and the core-drilling of 5 holes, 838 m in total. 120 m of these cores are stored at NGUs core storage-facilities at Løkken. The reports from A/S Sydvaranger are not available, but according to Bugge (1978) A/S Sydvaranger calculated the deposit to be 3 million tons of kragerøite with 2 % rutile. The Lindvikkollen deposit is probably too small to be of economic interest. Albitites in neighbouring areas do contain rutile mineralisations here and there, but good information of the size of these deposits is not available.

Bibliography:

From NGU's Reference Archive:

Korneliussen, Are; Furuhaug, Leif , 2000

	On the rutile deposit Ramsgrønova, Orkheia, Ødegården and Lindvik- kollen, S. Norway

;Norges geologiske undersøkelse;FAGRAPPORT;NGU-rapport; No.2000.123;35 pages

Stadheim, J. F. , 1938

	Rækeviken rutilforekomster ved Kragerø.

;Norges geologiske undersøkelse;FAGRAPPORT;Bergarkivet; No.BA 1069;12 pages

	Abstract:
	Rapporten beskriver forekomsten geologisk og den geografiske beliggenhet med hensyn til transport. Økonomiske vurderinger og malmberegninger er inngående gjennomgått. Forskjellige oppredningsforsøk er også utprøvet, og det anbefales videre forsøk. Økonomisk drift regnes som god.

Green, John C. , 1956

	Geology of the Storkollen - Blankenberg area, Kragerø, Norway.

;Norsk geologisk forening;TIDSSKRIFTARTIKKEL;Norsk geologisk tidsskrift; No.36 (2);89-140 pages

Abstract:

The high-grade quartzites and schists of the pre-Cambrian Kongsberg-Bamble formation in the Storkollen-Blankenberg area, Kragerø, enclose small gabbroic stocks which were centripetally altered to amphibolite during the Sveco-fennide (?) metamorphism. Associated with the gabbros and probably derived from them are dikes and irregular bodies of granulose albitite containing varying amounts of other minerals, notable among which are quartz, microcline, rutile, and tourmaline. Certain areas of the large rutile-albitite body of Lindvikskollen (kragerøite) were found to contain corundum; this is a new locality for corundum in Norway. Euhedral tourmaline crystals in an albitite-amphibolite transition zone were found to be an Mg-rich variety; this is also a new locality. It is concluded that most if not all of the albitites were formed metasomatically from preexisting amphibolite. Late in the orogeny, large, rare-earth bearing pegmatites were intruded in a highly liquid state, and cooled slowly with several stages of mineralization, including a partial replacement of microcline by cleavelandite. Finally, after shearing stresses had locally faulted and brecciated the rocks, iron oxide mineralization took place along a small east-west fissure.

Poulsen, A.O. , 1961

	Rutil.

;Norges geologiske undersøkelse;FAGRAPPORT;Bergarkivet; No.BA 3177;4 pages

	Abstract:
	Rutil opptrer i en rekke bergarter. Store forekomster finnes i tallrike avsetninger bl.a. i N.-South Wahs og Quensland. I Norge er rutil særlig knyttet til eklogitt og gneiser. I den senere tid går den vesentlige del av rutilproduksjonen til fremstilling av titan. Norges samlede produksjon var inkl 1958 ca. 4000 tonn. Verdensproduksjonen var i 1985 på 103 200 sh. tonn.

Fangel, H. , 1945

	A/S Kragerø rutilgruber. Angående utvinning av rutilmalm.

;Norges geologiske undersøkelse;FAGRAPPORT;Bergarkivet; No.BA 769;6 pages

Abstract:

Dokumentet gir en oversikt over historikken i reisningen av oppredningsverket for rutil ved Rekvika, over verkets tekniske utformning og over tonnasjer og gehalter i rutilforekomstene Rekvika, Dypsundholmen, Isnes og Landsverk. Oppredningsverket sto ferdig i 1943, men produserte kun 40 tonn rutilkonsentrat frem til slutten av krigen. Dokumentet vurderer mulighetene for rentabel drift, inklusive mulige inntekter fra oppredning av andre typer produkter i tillegg til rutil.

Stadheim, J.

	Concerning Sjaaen Rutile deposits.

;Norges geologiske undersøkelse;FAGRAPPORT;Bergarkivet; No.BA 770;5 pages

	Abstract:
	En kort undersøkelse av rutilforekomsten er gjort. Går inn på tonnasjevurdering, gehalt, utbytte, marked, produksjonskostnader, kapitalbehov, forsatte arbeider og sikkerhet. Det meste av dette historisk interessant. Gehalt 2,4 % Ti02 for forekomstene.

Korneliussen, Are; McEnroe, Suzanne A.; Nilsson, Lars-Petter; Schiellerup, Henrik; Gautneb, Håvard; Meyer, Gurli B.; Størseth, Leif Roger , 2000

	An overview of titanium deposits in Norway

;Norges geologiske undersøkelse;TIDSSKRIFTARTIKKEL;NGU Bulletin; No.436;27-38 pages

Abstract:

Titanium deposits in Norway are of three major types: igneous, metasomatic and metamorphic. The igneous deposits are compared of ilmenite, magnetite and apatite in various proportions and occur in geological provinces of different ages. and some have a metamorphic overprint. The other majord Ti ore-types is the rutile-bearing eclogites in western Norway that formed during the Caledonian high-pressure metamorphism of predominantly Proterozoic basic igneous rocks. The third Ti ore-Type is the Proterozoic rutile-bearing, scapolitised and albitised rocks in the Bamble region of South Norway.

References not to be found in NGU's Reference Archive.:

Bugge, J.A.W. 1978: In Mineral deposits of Europe; vol. 1, Northwest Europe Bowie, S.H.U., Kvalheim, A., Haslam, H.W., Notholt, A.J.G., Jones, M.J. (eds.), Norway. Inst. Min. and Metall., London, 199-249.

Fieldsamples

	Sample No.	Sample type	Miscellanrous
	KB11A.91	Bedrock	Sampler: Are Korneliussen/...Stored: Løkken Comment: Albitite No. of registrated oxide analyses = 1
	KB11B.91	Bedrock	Sampler: Are Korneliussen/...Stored: Løkken Comment: Albitite No. of registrated oxide analyses = 1
	KB11C.91	Bedrock	Sampler: Are Korneliussen/...Stored: Løkken Comment: Albitite No. of registrated oxide analyses = 1
	KB11D.91	Bedrock	Sampler: Are Korneliussen/...Stored: Løkken Comment: Albitite No. of registrated oxide analyses = 1
	KB11F.91	Bedrock	Sampler: Are Korneliussen/...Stored: Løkken Comment: Albitite No. of registrated oxide analyses = 1
	KB5B.91	Bedrock	Sampler: Are Korneliussen/...Stored: Løkken Comment: Albitite No. of registrated oxide analyses = 1

NB! All analyse values are shown at the end of the printout.:

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The fact sheet was created on 26.04.2024

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