Landgrunnvatn Gold Prospect, Brønnøy, Nordland, Norwayi
| Regional Level Types | |
|---|---|
| Landgrunnvatn Gold Prospect | Prospect |
| Brønnøy | Municipality |
| Nordland | County |
| Norway | Country |
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Latitude & Longitude (WGS84):
65° 17' 7'' North , 12° 45' 47'' East
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Terråk | 623 (2010) | 28.6km |
Other Languages:
Norwegian:
Landgrunnvatn gullskjerp, Brønnøy, Nordland, Norge
A gold occurrence probably discovered in the 1930's by Boliden AB on behalf of A/S Kolsvik Malmfelter during regional mapping. Samples were collected in 1982-83 by BP Norge A.S.
The mineralisation occurs in a hydrothermal quartz vein measuring 220x2 m in biotite gneiss, containing boudinated bodies of marble. The gneiss contains 1-2 m wide granite dykes, not intersecting the quartz vein.
The surface of the quartz vein is covered by rust due to disseminated pyrite crystals in cavities in fractured quartz, and also due to veins containing pyrite/pyrrhotite and locally chalcopyrite.
The gold-containing arsenopyrite mineralisations occur in the lying contact with the gneiss, in the form of 1-2 cm wide and 1-3 m long, massive fracture fillings.
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Standard Detailed Gallery Strunz Chemical ElementsMineral List
5 valid minerals.
Rock Types Recorded
Note: data is currently VERY limited. Please bear with us while we work towards adding this information!
Select Rock List Type
Alphabetical List Tree DiagramDetailed Mineral List:
| ⓘ Arsenopyrite Formula: FeAsS |
| ⓘ Chalcopyrite Formula: CuFeS2 |
| ⓘ 'Chlorite Group' |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Pyrrhotite Formula: Fe1-xS |
| ⓘ Quartz Formula: SiO2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Pyrrhotite | 2.CC.10 | Fe1-xS |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| ⓘ | Arsenopyrite | 2.EB.20 | FeAsS |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Unclassified | |||
| ⓘ | 'Chlorite Group' | - | |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Quartz | SiO2 |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| S | Sulfur | |
| S | ⓘ Arsenopyrite | FeAsS |
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Pyrrhotite | Fe1-xS |
| Fe | Iron | |
| Fe | ⓘ Arsenopyrite | FeAsS |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Pyrite | FeS2 |
| Fe | ⓘ Pyrrhotite | Fe1-xS |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| As | Arsenic | |
| As | ⓘ Arsenopyrite | FeAsS |
Other Databases
| Link to Geological Survey of Norway: | 2927 |
|---|
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