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Blindevann, Sande, Vestfold, Norway

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Latitude & Longitude (WGS84): 59° 34' 17'' North , 10° 20' 18'' East
Latitude & Longitude (decimal): 59.57163,10.33848
GeoHash:G#: u4x6gk8jz
Locality type:Road Cutting
Köppen climate type:Dfb : Warm-summer humid continental climate
Name(s) in local language(s):Blindevann (Blindevannsveien), Sande kommune, Vestfold fylke, Norge

Different minerals found in roadcuts along Blindevannveien, south of Blindevann in miarolitic cavities in the Drammen granite. A roadcut in the S-end of the Blindevann lake has been especially rich in cavities.

Regions containing this locality


Region - 2,002 mineral species & varietal names listed

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List

6 valid minerals.

Rock Types Recorded

Note: this is a very new system on and data is currently VERY limited. Please bear with us while we work towards adding this information!

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Alphabetical List Tree Diagram

Detailed Mineral List:

Formula: Be4(Si2O7)(OH)2
Reference: Atle Michalsen Collection; Knut Edvard Larsen collection # MM-4373
Reference: Raade. G. (1971): Om druserom i Drammensgranitten. Nytt fra Oslofeltgruppen. 1971 (1): 10-13
'Biotite granite'
Reference: Raade. G. (1971): Om druserom i Drammensgranitten. Nytt fra Oslofeltgruppen. 1971 (1): 10-13
Formula: CaCO3
Reference: Raade. G. (1971): Om druserom i Drammensgranitten. Nytt fra Oslofeltgruppen. 1971 (1): 10-13
Formula: CaF2
Reference: Raade. G. (1971): Om druserom i Drammensgranitten. Nytt fra Oslofeltgruppen. 1971 (1): 10-13
Formula: Fe2O3
Reference: Raade. G. (1971): Om druserom i Drammensgranitten. Nytt fra Oslofeltgruppen. 1971 (1): 10-13
Formula: K(AlSi3O8)
Reference: Knut Edvard Larsen collection # MM-4373
Formula: SiO2
Reference: Knut Edvard Larsen collection # MM-4373

List of minerals arranged by Strunz 10th Edition classification

Group 3 - Halides
Group 4 - Oxides and Hydroxides
Group 5 - Nitrates and Carbonates
Group 9 - Silicates
Unclassified Minerals, Rocks, etc.
'Biotite granite'-

List of minerals arranged by Dana 8th Edition classification

Group 56 - SOROSILICATES Si2O7 Groups, With Additional O, OH, F and H2O
Si2O7 Groups and O, OH, F, and H2O with cations in [4] coordination
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Unclassified Minerals, Rocks, etc.
'Biotite granite'-

List of minerals for each chemical element

H BertranditeBe4(Si2O7)(OH)2
Be BertranditeBe4(Si2O7)(OH)2
C CalciteCaCO3
O BertranditeBe4(Si2O7)(OH)2
O CalciteCaCO3
O HematiteFe2O3
O OrthoclaseK(AlSi3O8)
O QuartzSiO2
F FluoriteCaF2
Al OrthoclaseK(AlSi3O8)
Si BertranditeBe4(Si2O7)(OH)2
Si OrthoclaseK(AlSi3O8)
Si QuartzSiO2
K OrthoclaseK(AlSi3O8)
Ca CalciteCaCO3
Ca FluoriteCaF2
Fe HematiteFe2O3

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

Permian - Carboniferous
251.902 - 358.9 Ma

ID: 3157793
Carboniferous granite

Age: Phanerozoic (251.902 - 358.9 Ma)

Lithology: Major:{granite group}, Minor{monzonite,syenite,plutonic ultramafic 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]

251.902 - 298.9 Ma

ID: 3191892
Paleozoic intrusive rocks

Age: Phanerozoic (251.902 - 298.9 Ma)

Lithology: Intrusive igneous rocks

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]

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


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Raade. G. (1971): Om druserom i Drammensgranitten. Nytt fra Oslofeltgruppen. 1971 (1): 10-13

This page contains all mineral locality references listed on 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 visit any sites listed in without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.
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