Dragbacken, Ostrobothnia, Finlandi
| Regional Level Types | |
|---|---|
| Dragbacken | Pegmatite |
| Ostrobothnia | Region |
| Finland | Country |
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Latitude & Longitude (WGS84):
63° 37' 59'' North , 23° 26' 59'' East
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Moderately NW-dipping, NE-SW-aligned, c. 1–5 m planar dykes (c. 400 m + strike length)
Discordant to wall rock fold limb, near hinge zone
Partly zoned pegmatites
Observation of a narrow (< 1 m) pegmatite dyke in an aggregate quarry prompted follow-up boulder mapping, percussion drilling, ionic leach till geochemistry, ground magnetometry surveying, and a 1500 m diamond drilling program. This work delineated two subparallel, NE-striking, and moderately (40 – 50°) NW-dipping spodumene-bearing pegmatite dykes located approximately 300 m apart. The northwestern dyke is c. 0.5 – 5.8 m thick and has a minimum length of c. 200 m, while the southeastern dyke is c. 0.15 – 0.6 m thick with a minimum length of c. 90 m.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
6 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:
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 9 - Silicates | |||
| ⓘ | Zircon | 9.AD.30 | Zr(SiO4) |
| ⓘ | Spodumene | 9.DA.30 | LiAlSi2O6 |
| ⓘ | Muscovite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| ⓘ | Albite | 9.FA.35 | Na(AlSi3O8) |
| Unclassified | |||
| ⓘ | 'Columbite-(Fe)-Columbite-(Mn) Series' | - | |
| ⓘ | 'Garnet Group' | - | X3Z2(SiO4)3 |
| ⓘ | 'Columbite-Tantalite' | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Li | Lithium | |
| Li | ⓘ Spodumene | LiAlSi2O6 |
| O | Oxygen | |
| O | ⓘ Albite | Na(AlSi3O8) |
| O | ⓘ Magnetite | Fe2+Fe23+O4 |
| O | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Spodumene | LiAlSi2O6 |
| O | ⓘ Zircon | Zr(SiO4) |
| O | ⓘ Columbite-(Fe)-Columbite-(Mn) Series | |
| O | ⓘ Garnet Group | X3Z2(SiO4)3 |
| Na | Sodium | |
| Na | ⓘ Albite | Na(AlSi3O8) |
| Al | Aluminium | |
| Al | ⓘ Albite | Na(AlSi3O8) |
| Al | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Al | ⓘ Spodumene | LiAlSi2O6 |
| Si | Silicon | |
| Si | ⓘ Albite | Na(AlSi3O8) |
| Si | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Spodumene | LiAlSi2O6 |
| Si | ⓘ Zircon | Zr(SiO4) |
| Si | ⓘ Garnet Group | X3Z2(SiO4)3 |
| K | Potassium | |
| K | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Mn | Manganese | |
| Mn | ⓘ Columbite-(Fe)-Columbite-(Mn) Series | |
| Fe | Iron | |
| Fe | ⓘ Magnetite | Fe2+Fe23+O4 |
| Fe | ⓘ Columbite-(Fe)-Columbite-(Mn) Series | |
| Zr | Zirconium | |
| Zr | ⓘ Zircon | Zr(SiO4) |
| Nb | Niobium | |
| Nb | ⓘ Columbite-(Fe)-Columbite-(Mn) Series | |
Other Regions, Features and Areas containing this locality
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References
[1]Lynch, Edward P.; Szentpéteri, Krisztián; Andersson, Joel B.H.; Kuusela, Janne; Sadeghi, Martiya; Bauer, Tobias E. (2025) Lithium-caesium-tantalum (LCT) pegmatite mineralization in the Paleoproterozoic central Fennoscandian Shield (Sweden and Finland): A review of geological characteristics and assessment of mineral system commonalities. Ore Geology Reviews, 184. 106739 doi:10.1016/j.oregeorev.2025.106739
