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Midtbø (Midbø), Tvedestrand, Aust-Agder, Norway

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Latitude & Longitude (WGS84): 58° 40' 7'' North , 8° 52' 5'' East
Latitude & Longitude (decimal): 58.66863,8.86811
GeoHash:G#: u4qmcb399
Köppen climate type:Dfb : Warm-summer humid continental climate


Approximately 6 km NW of Tvedestrand.

Study of the altitude map has not resulted in locating this quarry/mine.

The coordinates are for the farm.


Coordinates © Kartverket - https://www.kartverket.no

Regions containing this locality

Scandinavia

Region - 2,024 mineral species & varietal names listed

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


5 valid minerals.

Detailed Mineral List:

Albite
Formula: Na(AlSi3O8)
Reference: Mallard, (1887): Sur la Cryptolite de Norvege. Bulletin de la Société française de Minéralogie, 10: 236-238
Albite var: Oligoclase
Formula: (Na,Ca)[Al(Si,Al)Si2O8]
Reference: Mallard, (1887): Sur la Cryptolite de Norvege. Bulletin de la Société française de Minéralogie, 10: 236-238
'Apatite'
Reference: Mallard, (1887): Sur la Cryptolite de Norvege. Bulletin de la Société française de Minéralogie, 10: 236-238
'Biotite'
Reference: Mallard, (1887): Sur la Cryptolite de Norvege. Bulletin de la Société française de Minéralogie, 10: 236-238
'Monazite'
Description: Mallard found monazite as inclusions in apatite.
Reference: Mallard, (1887): Sur la Cryptolite de Norvege. Bulletin de la Société française de Minéralogie, 10: 236-238
Pyrrhotite
Formula: Fe7S8
Reference: Mallard, (1887): Sur la Cryptolite de Norvege. Bulletin de la Société française de Minéralogie, 10: 236-238
Quartz
Formula: SiO2
Reference: Mallard, (1887): Sur la Cryptolite de Norvege. Bulletin de la Société française de Minéralogie, 10: 236-238
Rutile
Formula: TiO2
Reference: Mallard, (1887): Sur la Cryptolite de Norvege. Bulletin de la Société française de Minéralogie, 10: 236-238
Samarskite-(Y)
Formula: (Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8
Reference: Nijland, T.G., Zwaan, J.C & Touret, L. (1998): Topographical mineralogy of the Bamble sector, south Norway. Scripta Geologica 118, 46 pp

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Pyrrhotite2.CC.10Fe7S8
Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2
Rutile4.DB.05TiO2
Samarskite-(Y)4.DB.25(Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8
Group 9 - Silicates
'Albite'9.FA.35Na(AlSi3O8)
var: Oligoclase9.FA.35(Na,Ca)[Al(Si,Al)Si2O8]
Unclassified Minerals, Rocks, etc.
'Apatite'-
'Biotite'-
'Monazite'-

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmXp, with m:p = 1:1
Pyrrhotite2.8.10.1Fe7S8
Group 4 - SIMPLE OXIDES
AX2
Rutile4.4.1.1TiO2
Group 8 - MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
ABO4
Samarskite-(Y)8.1.11.1(Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Albite76.1.3.1Na(AlSi3O8)
Unclassified Minerals, Rocks, etc.
var: Oligoclase-(Na,Ca)[Al(Si,Al)Si2O8]
'Apatite'-
'Biotite'-
'Monazite'-

List of minerals for each chemical element

OOxygen
O AlbiteNa(AlSi3O8)
O Albite (var: Oligoclase)(Na,Ca)[Al(Si,Al)Si2O8]
O QuartzSiO2
O RutileTiO2
O Samarskite-(Y)(Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8
NaSodium
Na AlbiteNa(AlSi3O8)
Na Albite (var: Oligoclase)(Na,Ca)[Al(Si,Al)Si2O8]
AlAluminium
Al AlbiteNa(AlSi3O8)
Al Albite (var: Oligoclase)(Na,Ca)[Al(Si,Al)Si2O8]
SiSilicon
Si AlbiteNa(AlSi3O8)
Si Albite (var: Oligoclase)(Na,Ca)[Al(Si,Al)Si2O8]
Si QuartzSiO2
SSulfur
S PyrrhotiteFe7S8
CaCalcium
Ca Albite (var: Oligoclase)(Na,Ca)[Al(Si,Al)Si2O8]
Ca Samarskite-(Y)(Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8
TiTitanium
Ti RutileTiO2
FeIron
Fe PyrrhotiteFe7S8
Fe Samarskite-(Y)(Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8
YYttrium
Y Samarskite-(Y)(Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8
NbNiobium
Nb Samarskite-(Y)(Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8
TaTantalum
Ta Samarskite-(Y)(Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8
ThThorium
Th Samarskite-(Y)(Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8
UUranium
U Samarskite-(Y)(Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Proterozoic
541 - 2500 Ma



ID: 3186372
Proterozoic crystalline metamorphic rocks

Age: Proterozoic (541 - 2500 Ma)

Lithology: Granitoid gneiss; orthogneiss/paragneiss

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Mesoproterozoic
1000 - 1600 Ma



ID: 3131151
Proterozoic II quartzite

Age: Mesoproterozoic (1000 - 1600 Ma)

Description: undifferentiated metamorphic

Lithology: Quartzite

Reference: Asch, K. The 1:5M International Geological Map of Europe and Adjacent Areas: Development and Implementation of a GIS-enabled Concept. Geologisches Jahrbuch, SA 3. [147]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

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Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Mallard, (1887): Sur la Cryptolite de Norvege. Bulletin de la Société française de Minéralogie, 10: 236-238


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