Fact Sheet for Deposit Area 815

					Norsk versjon
	THE ORE DATABASE
	Deposit Area 815 - 040
	(Last updated 15.mar.2024)

Name of Deposit Area : Lindvikkollen

(Object Id : 0815,040,00,00)

Location

County :

Telemark (08)

Municipality :

Kragerø (0815)

Map 1:50000:

Map 1:250000:

Marking point:

Longitude:

9.3708660

Latitude:

58.8656370

EU89-UTM Zone 32

(Coordinates IS confirmed)

X-coord:

521389 m.

Y-coord:

6525150 m.

Commodity

	Main Type:	Ferrous metals(Fe, Mn, Ti)	Sub Type:	Titanium
			Element(s):	Ti Rutile

Production

Activity:	Mining	Reserves:	3000 thousand tons
Prod. method:	Underground mining	Production:	150 thousand tons
Prod. status:	Disused, closed	Volume of dump:

Importance

Public: Little Importance (reg. 26.05.2015)

Economical: Could be significant , (Confirmed 10.mai.2001 by Jan Sverre Sandstad)

Products

Element/product Crude ore grade or quality

TI 1.8 %

TIO2 3 %

Mineralization

Era: Proterozoic Period: Mesoproterozoic

Dating: Method:

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.:

Analyse Results

from

Deposit Area 815 - 040 Lindvikkollen

Oxide analyses
( All values are in % )

Sample No. Sample Type SiO2 Al2O3 TiO2 Fe2O3 MnO MgO CaO

KB11A.91 Bedrock 62.99 18.82 2.98 0.24 0.01 0.08 1.08

KB11B.91 Bedrock 65.76 18.53 2.97 0.28 0.01 0.07 1.26

KB11C.91 Bedrock 63.70 18.24 4.15 0.40 0.01 0.25 1.28

KB11D.91 Bedrock 64.93 20.13 1.20 0.53 0.01 0.44 1.18

KB11F.91 Bedrock 69.14 19.26 0.02 0.17 0.01 0.01 0.98

KB5B.91 Bedrock 50.55 5.58 9.05 4.15 0.03 10.00 13.99

------------------

Sample No. Na2O K2O P2O5 Sum

KB11A.91 7.13 5.26 0.16 99.00

KB11B.91 9.83 0.88 0.23 100.00

KB11C.91 9.73 0.90 0.21 99.00

KB11D.91 10.23 0.69 0.06 99.00

KB11F.91 10.16 0.97 0.01 101.00

KB5B.91 3.52 0.14 0.08 97.00

	Element/product	Crude ore grade or quality
	TI	1.8 %
	TIO2	3 %

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

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):

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

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%)

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

	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.

	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.

	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.

Sample No.	Sample Type	SiO2	Al2O3	TiO2	Fe2O3	MnO	MgO	CaO
KB11A.91	Bedrock	62.99	18.82	2.98	0.24	0.01	0.08	1.08
KB11B.91	Bedrock	65.76	18.53	2.97	0.28	0.01	0.07	1.26
KB11C.91	Bedrock	63.70	18.24	4.15	0.40	0.01	0.25	1.28
KB11D.91	Bedrock	64.93	20.13	1.20	0.53	0.01	0.44	1.18
KB11F.91	Bedrock	69.14	19.26	0.02	0.17	0.01	0.01	0.98
KB5B.91	Bedrock	50.55	5.58	9.05	4.15	0.03	10.00	13.99

Sample No.	Na2O	K2O	P2O5	Sum
KB11A.91	7.13	5.26	0.16	99.00
KB11B.91	9.83	0.88	0.23	100.00
KB11C.91	9.73	0.90	0.21	99.00
KB11D.91	10.23	0.69	0.06	99.00
KB11F.91	10.16	0.97	0.01	101.00
KB5B.91	3.52	0.14	0.08	97.00