Knaben Molybdenum Mines, Knaben, Kvinesdal, Agder, Norwayi
| Regional Level Types | |
|---|---|
| Knaben Molybdenum Mines | Group of Mines |
| Knaben | Mining District |
| Kvinesdal | Municipality |
| Agder | County |
| Norway | Country |
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Latitude & Longitude (WGS84):
58° North , 7° East (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~1km
Type:
Group of Mines
Köppen climate type:
Mindat Locality ID:
49802
Long-form identifier:
mindat:1:2:49802:2
GUID (UUID V4):
2066510d-7b22-4ecd-b053-d2ef9e316971
Other Languages:
Norwegian:
Knaben molybdengruver, Knaben, Kvinesdal, Agder, Norge
The mines were in operation between 1885 to 1973.
From Müller at al (2015):
"The major rock type in the Knaben district is weakly foliated, porphyric reddish biotite granite with an intrusion age of ca. 1036 Ma belonging to the Mesoproterozoic Sirdal Magmatic belt. The porphyric granite contains mega screens and xenoliths of amphibolite and flaser gneiss in an area >10 km long (N-S) and 1 km wide (E-W).
In the Kinaben 2 and Ørnehommen mines the porphyric granite is intruded by grey, quartz-rich granite with disseminated molybdenite. Latter is assumed to be the primary source of molybdenum.
Coarse-grained molybdenite mineralization is commonly associated with ductile deformed, pegmatitic quartz bands and in one case with a large (300x150x5 m) pegmatite (Kvina mine)."
NOTE Ronald Werner April 2021:
I base the registrations done by me on Müller (2015) and the Riksantikvaren.no. Most of these registrations are probably spot-on, but in a few cases there will be a margin of error, and it is very well possible that the registrations of the Riksantikvaren are not 100% reliable and also that maybe some localities were overseen.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded from this region.Mineral List
Mineral list contains entries from the region specified including sub-localities7 valid minerals.
Detailed Mineral List:
| ⓘ Ferrimolybdite Formula: Fe2(MoO4)3 · nH2O Description: Sample in the collection of Naturhstorisk Museum, Oslo. |
| ⓘ Molybdenite Formula: MoS2 Localities: Description: Large masses of molybdenite wwiging up to 5 ton has been found. In 1914 a 9 ton mass of quartz and 90% molybdenite was found. |
| ⓘ Molybdite ? Formula: MoO3 Description: Sample in the collection of Naturhistorisk Museum in Oslo (from J.Schetelig 1915, labelled molybdite. Neumann (1985) question the identification, might possibly be a ferrimolybdite. |
| ⓘ 'Monazite' Formula: REE(PO4) |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Quartz Formula: SiO2 |
| ⓘ Uraninite Formula: UO2 |
| ⓘ Xenotime-(Y) Formula: Y(PO4) Description: Found in the heavy-fraction of ore-concentrate together with monazite-(Ce) and uraninite. |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Molybdenite | 2.EA.30 | MoS2 |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| ⓘ | Uraninite | 4.DL.05 | UO2 |
| ⓘ | Molybdite ? | 4.E0.10 | MoO3 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Ferrimolybdite | 7.GB.30 | Fe2(MoO4)3 · nH2O |
| Group 8 - Phosphates, Arsenates and Vanadates | |||
| ⓘ | Xenotime-(Y) | 8.AD.35 | Y(PO4) |
| Unclassified | |||
| ⓘ | 'Monazite' | - | REE(PO4) |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Ferrimolybdite | Fe2(MoO4)3 · nH2O |
| O | Oxygen | |
| O | ⓘ Ferrimolybdite | Fe2(MoO4)3 · nH2O |
| O | ⓘ Molybdite | MoO3 |
| O | ⓘ Monazite | REE(PO4) |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Uraninite | UO2 |
| O | ⓘ Xenotime-(Y) | Y(PO4) |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| P | Phosphorus | |
| P | ⓘ Monazite | REE(PO4) |
| P | ⓘ Xenotime-(Y) | Y(PO4) |
| S | Sulfur | |
| S | ⓘ Molybdenite | MoS2 |
| S | ⓘ Pyrite | FeS2 |
| Fe | Iron | |
| Fe | ⓘ Ferrimolybdite | Fe2(MoO4)3 · nH2O |
| Fe | ⓘ Pyrite | FeS2 |
| Y | Yttrium | |
| Y | ⓘ Xenotime-(Y) | Y(PO4) |
| Mo | Molybdenum | |
| Mo | ⓘ Ferrimolybdite | Fe2(MoO4)3 · nH2O |
| Mo | ⓘ Molybdenite | MoS2 |
| Mo | ⓘ Molybdite | MoO3 |
| U | Uranium | |
| U | ⓘ Uraninite | UO2 |
Localities in this Region
- Agder
- Kvinesdal
- Knaben
- Knaben molybdenum mines
- Abels Molybdenum Prospect
- Atlags Molybdenum Prospect
- Bektefjell Molybdenum Prospects
- Benkehei Molybdenum Mine
- Bergetjern Molybdenum Mine
- Beritshei Molybdenum Occurrence
- Bragold Molybdenum Prospects
- Foss Molybdenum Occurrence
- Grunnevassknuten Molybdenum Prospect
- Hommen Molybdenum Mine
- Hunsbeth Molybdenum Prospect
- Isak og Jakobs Molybdenum Mine
- Jelå Molybdenum Prospect
- Knaben 1 Mine
- Knaben 2 Mine
- Kvina Mines
- Lille Knaben Mines
- Litla Øyvatn Molybdenum Prospect
- Løgehei Molybdenum Occurrence
- Knaben molybdenum mines
- Knaben
- Kvinesdal
- Agder
- Kvinesdal
- Knaben
- Knaben molybdenum mines
- Ørnehommen Molybdenum Mines
- Øyevatnet Molybdenum Prospects
- Reinshommen Molybdenum Mines
- Risnafeltet 1 Molybdenum Prospect
- Risnafeltet 2 Molybdenum Prospect
- Roma Lower Tunnel Molybdenum Mine
- Roma Upper Tunnel Molybdenum Mine
- Rubakkdalen Molybdenum Prospect
- Rubedalen Molybdenum Prospect
- Ruben Molybdenum Mine
- Sandtjørn 1 Molybdenum Prospect
- Sandtjørn 2 Molybdenum Mine
- Sanne Molybenum Occurrence
- Skubbedalen Molybdenum Prospects
- Spillebrok Molybdenum Prospects
- Spillebrokkskjerpene Molybdenum Mine
- Stutedalen I Molybdenum Prospect
- Stutedalen II Molybdenum Prospect
- Stutedalen III Molybdenum Prospect
- Synnøve 3 Molybdenum Mine
- Tobias I Molybdenum Prospect
- Tobias II Molybdenum Prospect
- Knaben molybdenum mines
- Knaben
- Kvinesdal
Other Regions, Features and Areas containing this locality
This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to
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References
uia.brage.unit.no (n.d.) https://uia.brage.unit.no/uia-xmlui/bitstream/handle/11250/2799846/%C3%98ivind%20Rogstad.pdf?sequence=1
Bugge, Arne (1963) Norges molybdenforekomster [Norway's molybdenum deposits]. Norges Geologiske Undersøkelse 217
Dons, Johannes A. (1968) Rhenium-bestemmelser på norsk molybdenglans. Mineralogisk-Geologisk Museum - Universitetet i Oslo- Interne notater, Geologisk Museums venner. 17Content of Rhenium in molybdenite from Knaben
