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THE ORE DATABASE
Occurence 3116 - 001 Skår
(Object Id: 6631)
(Last updated: 22.10.2025)
Location
County: Østfold Municipality: Skiptvet (3116)
Map 1:50000: Sarpsborg (1913-1) Map 1:250000: Oslo
Coordinate system: EU89-UTM Zone 32
East: 622735 m. North: 6587054 m.
Longitude: 11.1619300 Latitude: 59.4042010
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Resource
Resource Type: Ferroalloys (Cr,Ni,Co,V,Mo,W) Resource Subtype: Nickel
Element(s): Ni Cu
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
Ni 2.0 % 18.02.2005

Mineralization
Era: Proterozoic Period: Mesoproterozoic
Genesis: Orthomagmatic formation Form:
Main texture: Min. distribution:
Main grain size: Main alteration:
Strike/Dip: Direction:
Plunge:
Stratigraphic classification of host rock
Era: Proterozoic Period: Mesoproterozoic
Province: East Norwegian Basement Province
Geotec.unit: Østfold Complex
Tectonic complex:
Igneous complex:
Group: Formation:

Information(s) in free text format
Free text
Forekomsten ligger rett øst for en hytte ved veien som fører ned til Skår på nordvest-siden av Glomma ovenfor. Arbeidene består av en 3-4 m bred og ca. 25 m lang dagskjæring med retning 300 grader. Veggene er opptil 6-8 m høye. Sør for dagskjæringen er det spor etter en gammel gruvevei som dels er anlagt over store, gjengrodde tipphauger. Ifølge Norges Bergverksstatstikk produserte gruva 11 t nikkelmalm i 1918, og den ble drevet tidligere av Glørud interessentskap i1876-77 (Rekstad 1921). Relativt mye masse er tatt ut. I skjæringen dominerer finkornet amfibolitt med uregelmessig disseminasjon og aggregater av magnetkis og kobberkis. Biotittførende granittisk gneis finnes i sørøstenden med foliasjon 130/20-60 grader.

Photo(s) from the Deposit area:
Photo no. 1 showing Skår gruve"
Photo no. 2 showing Tippen"

Bibliography:
From NGU's Reference Archive:
Rekstad, J. , 1921
Eidsberg. De geologiske forhold innen rektangelkartet Eidsbergs område
;Norges geologiske undersøkelse;KARTBESKRIVELSE; BOK;NGU; No.88;76 pages
Abstract:
The territory is situated in south-eastern Norway to the east of the Oslofjord. It is an inland district which at no place reaches the sea. Glomma is the chief river which runs through the country in a southerly direction. The rocks occurring here are gneiss, granite, gabbro and schistose amphibolite, all of them of Archean age. Gneiss occupies a large area of the region. The rock has a varied appearance. Partly it is rich in mica (mica gneiss), partly it contains hornblende (hornblende-gneiss), partly it is coarse-grained and of granitoid texture. This latter form embraces also granite which has been deformed by powerful mechanical forces. This granite is intermixed with the gneiss in such a way as to make it impossible to separate them on the map. For the most part there is no distinctive demarcation between them, but the one passes into the other. The gneiss is mostly stratified, with well defined strike and dip. The granite intermixed is younger than the gneiss, but it belongs to the oldest known granites of Scandinavia. The gneiss is for the most part of igneous origin. Gabbro and amphibolite occur as numerous lenses injected into the gneiss. Connected with the gabbro here occurs nickelferous pyrrhotite. The greatest of these occurrences is at Romsås.

, 1940
Aktenvermerk uber Nickelerz-Vorkommen in Smålenene.
;Norges geologiske undersøkelse;FAGRAPPORT;Bergarkivet; No.BA 1585;2 pages
Abstract:
Notatet gir opplysninger om nikkel-magnetkisforekomster i Smålenene, Spydeberg, Hobøl, Skiptvedt, Svendal, Rakkestad, Eidsberg, Trøgstad og Askim.

Fieldsamples
Sample No. Sample type Miscellanrous
Skår01 Dump
Sampler: Mansur/Sandstad/...Stored: Løkken/...Size(kg): 2
Comment: Pyrrhotite±chalcopyrite dissemination/aggregates in fine grained amphibolite
No. of registrated element analyses = 1
Skår02 Dump
Sampler: Mansur/Sandstad/...Stored: Løkken/...Size(kg): 2
Comment: Chalcopyrite+pyrrhotite dissemination/aggregates in fine grained amphibolite
No. of registrated element analyses = 1
NB! All analyse values are shown at the end of the printout.:

Analyse Results
from
Deposit Area 3116 - 001 Skår

Element analyses
( *=parts pr. million, #=parts pr.billion, Negative values means below detection limit value.)
Sample No. Sample Type Cu* Zn* Pb* Co* Ni* Ag* Au#
Skår01 Dump 3040 101 8 283 7220 1.7 35.0
Skår02 Dump 11950 140 7 156 3170 6.9 43.0
------------------
Sample No. Pt# Pd# As* Cd* Ba* Mo* Sn* Sb* Bi*
Skår01 126.0 186.0 0 .8 60 0.81 1 0 1
Skår02 143.0 86.0 1 2.4 140 0.55 1 0 0
------------------
Sample No. Se* Ga* Ge* In* V* Cr* Mn* Fe% Th*
Skår01 12.00 16.45 0.25 0.13 143 415 939 12.90 2.38
Skår02 9.00 18.80 0.22 0.11 157 459 848 10.00 2.08
------------------
Sample No. U* W* Rb* Sr* Y* Zr* Nb* Ta* Cs*
Skår01 0.30 0 40.4 212.0 9.5 16 2.40 0.16 3.42
Skår02 0.30 0 118.0 238.0 12.1 19 2.80 0.14 4.92
------------------
Sample No. La* Ce* Li* Be* P* Sc* Te* Hf* Re*
Skår01 6.00 13.65 17 0 220 19.20 1.77 0.60 30
Skår02 6.70 15.30 24 1 240 21.60 0.77 0.60 15
------------------
Sample No. Tl*
Skår01 0
Skår02 1

The fact sheet was created on 25.10.2025
Questions or comments regarding the fact sheet can be emailed to:
ressursdatabaser@ngu.no
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