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THE ORE DATABASE
Deposit 4630 - 009 Hosanger
(Object Id: 4817)
(Last updated: 15.03.2024)
Location
County: Vestland Municipality: Osterøy (4630)
Map 1:50000: Stanghelle (1216-3) Map 1:250000: Bergen
Coordinate system: EU89-UTM Zone 32
East: 307424 m. North: 6716594 m.
Longitude: 5.4890390 Latitude: 60.5391290
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Resource
Resource Type: Ferroalloys (Cr,Ni,Co,V,Mo,W) Resource Subtype: Nickel
Element(s): Ni Cu Au
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: 11 thousand tons


Products
Element/product Crude ore grade or quality Reg. date
Ni 2.5 % 24.01.2024

Operations
From - To Activity Comments
1883 - 1893 Regular production "Varaldsø mining Co" fram til 1889 og fra 1890 "Aktiebolaget Os-Hommelviks kopparverk"
1899 - 1901 Test mining Den amerikanske "nikkelkonge" Thomson (Munster 1909)
1915 - 1917 Test mining Kristiansands Nikkelraffinieringsverk

Mineralization
Era: Proterozoic Period: Neoproterozoic
Genesis: Orthomagmatic formation Form: Irregular
Main texture: Structureless Min. distribution: Massive (>50 % ore minerals)
Main grain size: Medium grained (1-3 mm) Main alteration:
Strike/Dip: 320 / 30 Direction:
Plunge:
Stratigraphic classification of host rock
Era: Proterozoic Period: Neoproterozoic
Province: Caledonian Basement Province
Geotec.unit: Lindås Nappe Complex
Tectonic complex:
Igneous complex:
Group: Formation:

Mineralogy
Relationship Mineral Amount
Gangue mineral Pyroxene Major mineral (>10%)
Gangue mineral Plagioclase Major mineral (>10%)
Gangue mineral Biotite Subordinate mineral (1-10%)
Gangue mineral Amphibole Subordinate mineral (1-10%)
Ore mineral Chalcopyrite Major mineral (>10%)
Ore mineral Pyrrhotite Major mineral (>10%)
Ore mineral Pentlandite Subordinate mineral (1-10%)

Lithology:
Relationship Rock Origin
Host rock Norite Intrusive
Original rock :Norite
Metamorphic facies :Amphibolite

Information(s) in free text format
Free text
The Hosanger district comprise several nickel-copper deposits hosted by the lower parts of a pervasively deformed body of norite, the Hosanger intrusion, belonging to the Lindås Nappe. The first deposit was found in 1875, and mining continued intermittently in the area until 1945 when the operations closed due to the exhaustion of richer ore. Early operations, until 1898, focused on massive mineralisation containing 2–4 % Ni in the southern part of the intrusion. These bodies were socalled "offset" ore, as they occur as veins in the wall rock. The Litland ore was discovered in 1899, but was first mined in 1915, and the Lien ore, further north, was discovered in 1915 but was not mined until 1938. Production figures show Ni grades varying from 0.67 to 1.215 % and Cu from 0.285 to 0.44 % from the group of deposits as a whole. Blackstone Ventures, who currently (2010) hold the claims to the deposit, state that past production totalled 460,000 t grading 1.05 % Ni, 0.35 % Cu and 0.05 % Co.

Bibliography:
From NGU's Reference Archive:
Bjørlykke, Harald , 1949
Hosanger nikkelgruve.
;Norges geologiske undersøkelse;TIDSSKRIFTARTIKKEL;NGU; No.172;1-38 pages
Abstract:
(forkortet) The Hosanger nickel deposits are situated on the western coast of southern Norway, about 20 km NE of Bergen. Nickel ore has been produced in 4 mines, Nonås, Litland, Lien I, Lien II Smith Meyers mine). The mining district at Hosanger belongs geologically to the Bergen Arch System which has been described by C.F. and N.H.Kolderup (1940). During the geological mapping it was only possible to distinguish two types of rocks: the intrusive gabbroic rocks which on the map has been named gabbro, and the surrounding migmatic gneisses with. The gneisses are of very different composition including granite gneisses with mineral composition: microperthite, quatrtz, oliggoclase, biotite, chlorite, garnet and epidoter and albite- zoisite-gneisses with quartz, albite zoisite and biotite. The intrusive has been the shape of a phacolite chiefly composed of noritic rocks, analysis of which are given in table 1(p.12) together with an analysis of ore diorite from the Flåt nickel mine in Setesdal, Southern Norway. J.H.L. Vogt (1923) has calculated the following mineral composition from the analysis of ore norite from Hosanger: Labradorite 20, hypersthene (with 27 FeSi O3 and some diallag) 60, amphibole 12 and biotite 5.

Bjørlykke, Harald , 1946
Nonås felt. Geologisk profil
;Norges geologiske undersøkelse;KART;Bergarkivet; No.K 1584

Bjørlykke, H. , 1947
Hosanger nikkelgruve.
;Norges geologiske undersøkelse;FAGRAPPORT;Bergarkivet; No.BA 6372;25+kart pages
Abstract:
Rapporten gir en bred utredning om Hosangerfeltets geologi og malmmineralisering. Forekomstnr.: 20317 og 20318. Forekomstens navn og koordinater: Nonås, Hosanger 32 3074 67168, Litland, Hosanger 32 3071 67186.

References not to be found in NGU's Reference Archive.:
Rosenlund, A.L. 1939. Nonaasgrubene, opplysninger i tillegg til rapport av 6. november 1915. BV3894, 8s.


Rosenlund, A.L. 1915. Rapport over Nonaafeltet. BV 3893, 16s.

Fieldsamples
Sample No. Sample type Miscellanrous
Nonås-01 Dump
Sampler: Bjerkgård/Sandstad/...Stored: Løkken
Comment: Massive pyrrhotite+chalcopyrite with medium-/coarse-grained hornblende
No. of registrated element analyses = 1
Nonås-02 Dump
Sampler: Bjerkgård/Sandstad/...Stored: Løkken
Comment: Dissemination of pyrrhotite+chalcopyrite i gabbro
No. of registrated element analyses = 1
Nonås-03 Dump
Sampler: Bjerkgård/Sandstad/...Stored: Løkken
Comment: Aggregates/veinlets/dissemination of chalcopyrite-pyrrhotite in gabbro (mob.)
No. of registrated element analyses = 1
NB! All analyse values are shown at the end of the printout.:

Name of Locality: Bratlien
(Object Id: 39433 9,01,00)
Location
County: Vestland Municipality: Osterøy (4630)
Map 1:50000: Stanghelle (1216-3) Map 1:250000: Bergen
Coordinate system: EU89-UTM Zone 32
East: 307386 m. North: 6716470 m.
Longitude: 5.4884690 Latitude: 60.5379910
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Resource
Resource Type: Ferroalloys (Cr,Ni,Co,V,Mo,W) Resource Subtype: Nickel
Element(s): Ni Cu Au
Resources and production
Activity: Mining Reserves:
Operating method: Underground mining Historical production:


Information(s) in free text format
Free text
Brattlien gruve ligger i en bratt skråning sør for hovedbruddet. Dette er en relativt kobber-rik nikkelmalm og ble drevet av Varaldsø Mining Co. i perioden 1882-1891. Mindre prøvedrift og oppfaring ble utført i 1898 og 1915. Arbeidene består av en dagskjæring som fører inn til en stoll og flere skråsynker. Malmsonen består av semimassiv til årenettverk (‘net-textured’) magnetkis-kobberkis i gabbro. Den har moderat fall mot nordøst i den øvre del av synken (320°/35°), men flater ut mot bunnen av synken som skal være ca. 30 m dyp langs fallet.

Fieldsamples
Sample No. Sample type Miscellanrous
Brattlien-01 Bedrock
Sampler: Bjerkgård/Sandstad/...Stored: Løkken
Comment: Semi-massive, fine-/medium-grained pyrrhotite-chalcopyrite (primary)
No. of registrated element analyses = 1
Brattlien-02 Bedrock
Sampler: Bjerkgård/Sandstad/...Stored: Løkken
Comment: Net-textured chalcopyrite in medium-grained amphibole-chlorite rock (mob.)
No. of registrated element analyses = 1
Brattlien-03 Dump
Sampler: Bjerkgård/Sandstad/...Stored: Løkken
Comment: Aggregates/veinlets/dissemination of pyrrhotite-pentlandite?-chalcopyrite in gabbro
No. of registrated element analyses = 1
NB! All analyse values are shown at the end of the printout.:

Name of Locality: Natskogsynken
(Object Id: 39434 9,02,00)
Location
County: Vestland Municipality: Osterøy (4630)
Map 1:50000: Stanghelle (1216-3) Map 1:250000: Bergen
Coordinate system: EU89-UTM Zone 32
East: 307359 m. North: 6716654 m.
Longitude: 5.4878160 Latitude: 60.5396360
Show on map
Resource
Resource Type: Ferroalloys (Cr,Ni,Co,V,Mo,W) Resource Subtype: Nickel
Element(s): Ni Cu Au
Resources and production
Activity: Mining Reserves:
Operating method: Underground mining Historical production:


Information(s) in free text format
Free text
Natskogsynken ligger nordvest for hovedgruva på nordsida av den gamle gruveveien. Det skal ikke ha vært noen drift på malm i denne lokaliteten (Rosenlund 1939).

Fieldsamples
Sample No. Sample type Miscellanrous
Natskogsynken-01 Dump
Sampler: Bjerkgård/Sandstad/...Stored: Løkken
Comment: Dissemination of pyrrhotite-chalcopyrite
No. of registrated element analyses = 1
NB! All analyse values are shown at the end of the printout.:

Name of Locality: Storbotten gruve
(Object Id: 39440 9,03,00)
Location
County: Vestland Municipality: Osterøy (4630)
Map 1:50000: Stanghelle (1216-3) Map 1:250000: Bergen
Coordinate system: EU89-UTM Zone 32
East: 307269 m. North: 6716658 m.
Longitude: 5.4861580 Latitude: 60.5396200
Show on map
Resource
Resource Type: Ferroalloys (Cr,Ni,Co,V,Mo,W) Resource Subtype: Nickel
Element(s): Ni Cu Au
Resources and production
Activity: Mining Reserves:
Operating method: Underground mining Historical production:


Information(s) in free text format
Free text
Denne gruva ligger ca. 200 m nordvest for Brattlien gruve. Koordinatene er avmerket ved en stollinngang som fører inn til et større bergrom med skråsynk opp til Storbotten gruve med inngang nær en sving i den gamle gruveveien. Kun mindre, separate malmlinser som er 50-cm mektige ble observert.

Analyse Results
from
Deposit Area 4630 - 009 Hosanger

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#
Brattlien-01 Bedrock 23100 65 66 882 15650 6.1 229.0
Brattlien-02 Bedrock 20400 62 43 441 16350 6.5 111.0
Brattlien-03 Dump 15150 84 62 451 13700 4.9 87.0
Natskogsynken-01 Dump 5780 169 7 396 9950 1.9 24.0
Nonås-01 Dump 4170 150 7 472 10450 1.0 29.0
Nonås-02 Dump 4290 266 5 241 4540 1.0 13.0
Nonås-03 Dump 5330 229 19 745 6480 1.1 7.0
------------------
Sample No. Pt# Pd# As* Cd* Ba* Mo* Sn* Sb* Bi*
Brattlien-01 465.0 730.0 1 .3 540 2.61 2 0 4
Brattlien-02 166.0 482.0 -0 .3 690 2.34 1 0 1
Brattlien-03 172.0 456.0 1 .4 520 1.86 2 0 2
Natskogsynken-01 16.0 27.0 0 .3 280 1.62 1 0 0
Nonås-01 15.0 26.0 -0 .3 200 1.30 1 0 0
Nonås-02 11.0 10.0 -0 .2 280 0.67 1 -0 0
Nonås-03 21.0 31.0 1 .4 100 1.64 2 0 0
------------------
Sample No. Se* Ga* Ge* In* S% V* Cr* Mn* Fe%
Brattlien-01 60.00 9.71 0.43 0.07 12.45 125 351 830 18.05
Brattlien-02 39.00 10.80 0.38 0.07 7.80 123 345 848 14.50
Brattlien-03 36.00 10.75 0.33 0.08 8.03 135 339 915 14.55
Natskogsynken-01 25.00 12.90 0.31 0.08 5.95 147 557 1440 16.40
Nonås-01 18.00 11.10 0.29 0.09 7.41 151 663 1350 17.95
Nonås-02 10.00 12.60 0.22 0.07 4.54 124 606 2170 16.65
Nonås-03 20.00 13.00 0.29 0.11 8.96 165 701 1130 18.95
------------------
Sample No. Th* U* W* Rb* Sr* Y* Zr* Nb* Cs*
Brattlien-01 0.95 0.20 0 23.2 1690.0 11.4 16 2.70 0.29
Brattlien-02 0.92 0.20 0 28.2 1830.0 13.4 15 3.20 0.35
Brattlien-03 0.78 0.10 0 20.2 995.0 13.8 23 2.90 0.25
Natskogsynken-01 0.92 0.20 0 5.1 402.0 8.2 25 1.00 0.09
Nonås-01 1.04 0.20 0 8.6 195.5 10.1 27 1.40 0.20
Nonås-02 1.06 0.20 -0 6.0 195.5 4.5 11 1.10 0.14
Nonås-03 1.70 0.20 0 20.5 409.0 9.7 11 2.00 0.23
------------------
Sample No. La* Ce* Li* Be* P* Sc* Ti* Te* Hf*
Brattlien-01 49.40 107.50 5 1 1250 19.90 3620 4.03 1.10
Brattlien-02 64.50 137.00 5 1 1580 21.90 3890 2.53 1.00
Brattlien-03 57.60 129.50 4 1 1210 24.50 3380 3.25 1.40
Natskogsynken-01 9.70 24.80 5 1 340 21.30 3170 1.01 1.20
Nonås-01 9.40 25.90 5 1 310 23.40 3100 0.48 1.40
Nonås-02 9.10 19.70 4 0 350 16.70 2210 0.79 0.60
Nonås-03 25.40 55.10 4 1 680 20.90 3840 0.56 0.80
------------------
Sample No. Re* Tl*
Brattlien-01 0 0
Brattlien-02 0 0
Brattlien-03 0 0
Natskogsynken-01 0 0
Nonås-01 0 0
Nonås-02 0 0
Nonås-03 0 0

The fact sheet was created on 25.04.2024
Questions or comments regarding the fact sheet can be emailed to:
ressursdatabaser@ngu.no
Copyright © 2024 Geological Survey of Norway