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Seldal, Sandnes, Rogaland, Norway

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Latitude & Longitude (WGS84): 58° 52' 27'' North , 5° 59' 36'' East
Latitude & Longitude (decimal): 58.87419,5.99347
GeoHash:G#: u4kqbmsqc
Köppen climate type:Cfb : Temperate oceanic climate
Name(s) in local language(s):Seldal, Høle, Sandnes kommune, Rogaland fylke, Norge


A small abandoned quartz quarry (15x20 meter) located NNE of Øksnanuten on the Seldal Farm near Seldalsvatnet. Production was halted in 1963. Piemontite minaralization was found close to this quarry in the 1980s.

The mp position is questionable.

Regions containing this locality

Scandinavia

Region - 2,000 mineral species & varietal names listed

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


4 valid minerals.

Detailed Mineral List:

Albite
Formula: Na(AlSi3O8)
Reference: Tony Doré pers.com to Knut Edvard Larsen May 1985
'Hydromuscovite'
Habit: Finegrained aggregates
Colour: Light purple or light green
Reference: Tony Doré pers.com to Knut Edvard Larsen May 1985
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Colour: Purplish
Reference: Tony Doré pers.com to Knut Edvard Larsen May 1985
Piemontite
Formula: {Ca2}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
Habit: massive
Colour: Light pink to strongly pink
Reference: Knut Edvard Larsen collection # 726 (analyzed, Tony Doré pers.com May 1985)
'Pumpellyite'
Habit: Massive and as crystals
Colour: Bluish-green
Reference: Tony Doré pers.com to Knut Edvard Larsen May 1985
Quartz
Formula: SiO2
Reference: Tony Doré pers.com to Knut Edvard Larsen May 1985

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
'Quartz'4.DA.05SiO2
Group 9 - Silicates
'Albite'9.FA.35Na(AlSi3O8)
'Muscovite'9.EC.15KAl2(AlSi3O10)(OH)2
'Piemontite'9.BG.05{Ca2}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
Unclassified Minerals, Rocks, etc.
'Hydromuscovite'-
'Pumpellyite'-

List of minerals arranged by Dana 8th Edition classification

Group 58 - SOROSILICATES Insular, Mixed, Single, and Larger Tetrahedral Groups
Insular, Mixed, Single, and Larger Tetrahedral Groups with cations in [6] and higher coordination; single and double groups (n = 1, 2)
Piemontite58.2.1a.11{Ca2}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Muscovite71.2.2a.1KAl2(AlSi3O10)(OH)2
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.
'Hydromuscovite'-
'Pumpellyite'-

List of minerals for each chemical element

HHydrogen
H MuscoviteKAl2(AlSi3O10)(OH)2
H Piemontite{Ca2}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
OOxygen
O AlbiteNa(AlSi3O8)
O MuscoviteKAl2(AlSi3O10)(OH)2
O Piemontite{Ca2}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
O QuartzSiO2
NaSodium
Na AlbiteNa(AlSi3O8)
AlAluminium
Al AlbiteNa(AlSi3O8)
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al Piemontite{Ca2}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
SiSilicon
Si AlbiteNa(AlSi3O8)
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si Piemontite{Ca2}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
Si QuartzSiO2
KPotassium
K MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
Ca Piemontite{Ca2}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
MnManganese
Mn Piemontite{Ca2}{Al2Mn3+}(Si2O7)(SiO4)O(OH)

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 - Paleoproterozoic
1000 - 2500 Ma



ID: 3131618
Proterozoic I granite

Age: Proterozoic (1000 - 2500 Ma)

Description: undifferentiated metamorphic

Lithology: Major:{granite}, Minor{granodiorite-diorite group,meta-granite,meta-granodiorite-diorite group}

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

External Links

Geological Survey of Norway. The Ore Database. Deposit Area 1102 - 307, Seldal:
http://aps.ngu.no/pls/oradb/minres_deposit_fakta.Main?p_objid=8000&p_spraak=E


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