Bjørkåsen mine, Ballangen, Narvik, Nordland, Norwayi
| Regional Level Types | |
|---|---|
| Bjørkåsen mine | Mine |
| Ballangen | Municipality (Former) |
| Narvik | Municipality |
| Nordland | County |
| Norway | Country |
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Latitude & Longitude (WGS84):
68° 19' 46'' North , 16° 47' 24'' East
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Clubs:
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| Club | Location | Distance |
|---|---|---|
| Ofoten Amatørgeologiske Forening | Narvik | 29km |
Mindat Locality ID:
35613
Long-form identifier:
mindat:1:2:35613:3
GUID (UUID V4):
10f63ecd-09d6-4396-a324-8118a5d09b1b
Other/historical names associated with this locality:
Bjørkåsen, Ofoten
Name(s) in local language(s):
Bjørkåsen gruve, Ballangen kommune, Nordland fylke, Norge
The Bjørkåsen sulphide deposit is located in Ballangen municipality in Nordland. The area is called Ofoten (which covers several municipalities).
It consists of 2 sulphide lenses developed along a sulphide impregnated horizon in garnet-mica schist of Cambro-silurian age intruded by granite and gabbro (Karup-Møller 1973).
It was mined from 1915-1924, and about 523 000 ton ore was extracted.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Bismuth Formula: Bi Description: Bismuth occurs as equidimensional grains and as fine laths plates in a giessenite-cosalite-galena mineral suite. |
| ⓘ Bismuthinite ? Formula: Bi2S3 Description: Karup-Møller (1973) reports a secondary Bi mineral that he says is possibly a very fine-grained mixture of bismuthinite and a Ca-bearing gangue mineral. See also Neumann (1985) |
| ⓘ Breithauptite Formula: NiSb Description: Occurs as 0,05 mm rounded to slightly elongated grains mainly along the giessenite-pyrrhotite contact zone. |
| ⓘ Chalcopyrite Formula: CuFeS2 |
| ⓘ Cosalite Formula: Pb2Bi2S5 Description: Occurs as elongated, irregular grains < 0,5 cm. |
| ⓘ Galena Formula: PbS Description: Massive grains up to several cm, with octahedral cleavage. (A galena paramorphose after galena ?)
Bi content of 0,5-1,8 5 but copper and silver values of less than 0,3% (Karup-Møller 1973) |
| ⓘ Galenobismutite ? Formula: PbBi2S4 Description: Oftedal mention "lead- bismuth" (Blyvismutglans, cited after Neumann 1985) in galena, and he assumes that it can be a galenobismutite. References: |
| ⓘ Giessenite Formula: Pb27Cu2(Bi,Sb)19S57 Habit: Regulary shaped needles < 3mm in length; grains Description: Occur as thin needles in quartz or as elongated and irregular grains up to a few mm in size in galena and pyrrhotite. |
| ⓘ 'Joséite' ? Formula: Bi4TeS2 Description: Occurs as short lamellae up to 0.1 mm in length, and also as irregular shaped grains up to 0,05mm in diameter. Neumann (1985) questions the identity of joseite. He states that the microprobe analysis presented by Karup-Møller (1973) doesn't correspond with Joseite. |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Pyrrhotite Formula: Fe1-xS |
| ⓘ Sphalerite Formula: ZnS |
| ⓘ Stannite Formula: Cu2FeSnS4 Description: Relatively common as irregularly shaped grains with an average size of 0,1 mm. Also as extremely small exsolution blebs in sphalerite. |
| ⓘ Ullmannite Formula: NiSbS Description: Occurs as 0,03 mm rounded grains along the giessenite-pyrrhotite contact zone. |
| ⓘ 'UM1971-13-S:BiCuFePb' Formula: Bi4Cu8Fe10Pb12S37 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Bismuth | 1.CA.05 | Bi |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Sphalerite | 2.CB.05a | ZnS |
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Stannite | 2.CB.15a | Cu2FeSnS4 |
| ⓘ | Breithauptite | 2.CC.05 | NiSb |
| ⓘ | Pyrrhotite | 2.CC.10 | Fe1-xS |
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | Bismuthinite ? | 2.DB.05 | Bi2S3 |
| ⓘ | 'Joséite' ? | 2.DC.05 | Bi4TeS2 |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| ⓘ | Ullmannite | 2.EB.25 | NiSbS |
| ⓘ | Giessenite | 2.HB.10b | Pb27Cu2(Bi,Sb)19S57 |
| ⓘ | Cosalite | 2.JB.10 | Pb2Bi2S5 |
| ⓘ | Galenobismutite ? | 2.JC.25e | PbBi2S4 |
| Unclassified | |||
| ⓘ | 'UM1971-13-S:BiCuFePb' | - | Bi4Cu8Fe10Pb12S37 |
List of minerals for each chemical element
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References
Karup-Møller, S. (1971): On some exsolved minerals in galena. Canadian Mineralogist: 10(5): 871-876.
