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Kergonguy, Plouguin, Finistère, Brittany, Francei
Regional Level Types
Kergonguy- not defined -
Plouguin- not defined -
Finistère- not defined -
Brittany- not defined -
FranceCountry

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Latitude & Longitude (WGS84): 48° 30' 50'' North , 4° 33' 47'' West
Latitude & Longitude (decimal): 48.51404,-4.56312
GeoHash:G#: gbsgbptnz
Köppen climate type:Cfb : Temperate oceanic climate


"(Coming from Lannalis). North of Brest on the D26 between Coat-Méal and Plouguin. At the place called Kergonguy, between the pebbles on undeveloped land between the fields there is cassiterite, quartz, rutile, and scheelite." [Belot, 1978]

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


4 valid minerals.

Detailed Mineral List:

Cassiterite
Formula: SnO2
Reference: Belot, Victor R. (1978) Guide des minéraux, coquillages et fossiles: où les trouver en France, comment les reconnaître et les collectionner (Guides Horay). Pierre Horay (Ed.), 224 pp.
Quartz
Formula: SiO2
Reference: Belot, Victor R. (1978) Guide des minéraux, coquillages et fossiles: où les trouver en France, comment les reconnaître et les collectionner (Guides Horay). Pierre Horay (Ed.), 224 pp.; Chauris, L. (2014) Minéraux de Bretagne. Les Editions du Piat, 164.
Rutile
Formula: TiO2
Reference: Belot, Victor R. (1978) Guide des minéraux, coquillages et fossiles: où les trouver en France, comment les reconnaître et les collectionner (Guides Horay). Pierre Horay (Ed.), 224 pp.
Scheelite
Formula: Ca(WO4)
Reference: Belot, Victor R. (1978) Guide des minéraux, coquillages et fossiles: où les trouver en France, comment les reconnaître et les collectionner (Guides Horay). Pierre Horay (Ed.), 224 pp.; Chauris, L. (2014) Minéraux de Bretagne. Les Editions du Piat, 164.
'Tourmaline'
Formula: A(D3)G6(T6O18)(BO3)3X3Z
Reference: Chauris, L. (2014): Minéraux de Bretagne, Les Editions du Piat, 164.
'Wolframite'
Formula: (Fe2+)WO4 to (Mn2+)WO4
Reference: Chauris, L. (2014): Minéraux de Bretagne, Les Editions du Piat, 164.

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
'Cassiterite'4.DB.05SnO2
'Quartz'4.DA.05SiO2
'Rutile'4.DB.05TiO2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
'Scheelite'7.GA.05Ca(WO4)
Unclassified Minerals, Rocks, etc.
'Tourmaline'-A(D3)G6(T6O18)(BO3)3X3Z
'Wolframite'-(Fe2+)WO4 to (Mn2+)WO4

List of minerals arranged by Dana 8th Edition classification

Group 4 - SIMPLE OXIDES
AX2
Cassiterite4.4.1.5SnO2
Rutile4.4.1.1TiO2
Group 48 - ANHYDROUS MOLYBDATES AND TUNGSTATES
AXO4
Scheelite48.1.2.1Ca(WO4)
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Rocks, etc.
'Tourmaline'-A(D3)G6(T6O18)(BO3)3X3Z
'Wolframite'-(Fe2+)WO4 to (Mn2+)WO4

List of minerals for each chemical element

BBoron
B TourmalineA(D3)G6(T6O18)(BO3)3X3Z
OOxygen
O CassiteriteSnO2
O QuartzSiO2
O RutileTiO2
O ScheeliteCa(WO4)
O TourmalineA(D3)G6(T6O18)(BO3)3X3Z
O Wolframite(Fe2+)WO4 to (Mn2+)WO4
SiSilicon
Si QuartzSiO2
CaCalcium
Ca ScheeliteCa(WO4)
TiTitanium
Ti RutileTiO2
MnManganese
Mn Wolframite(Fe2+)WO4 to (Mn2+)WO4
FeIron
Fe Wolframite(Fe2+)WO4 to (Mn2+)WO4
SnTin
Sn CassiteriteSnO2
WTungsten
W ScheeliteCa(WO4)
W Wolframite(Fe2+)WO4 to (Mn2+)WO4

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

Paleozoic - Neoproterozoic
251.902 - 1000 Ma



ID: 3147958
Lower Gneiss Unit (Massif Central)

Age: Neoproterozoic to Triassic (251.902 - 1000 Ma)

Description: high grade metamorphic

Lithology: Major:{migmatite/anatexite}, Minor{gneiss,amphibolite}

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]

Devonian - Silurian
358.9 - 443.8 Ma



ID: 3184835
Paleozoic sedimentary rocks

Age: Paleozoic (358.9 - 443.8 Ma)

Lithology: Sedimentary 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 Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Belot, Victor R. (1978) Guide des minéraux, coquillages et fossiles: où les trouver en France, comment les reconnaître et les collectionner (Guides Horay). Pierre Horay (Ed.), 224 pp.
Chauris, L. (2014) Minéraux de Bretagne. Les Editions du Piat, 164.


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