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Kervenguy, Milizac, Finistère, Brittany, Francei
Regional Level Types
Kervenguy- not defined -
Milizac- not defined -
Finistère- not defined -
Brittany- not defined -
FranceCountry

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Latitude & Longitude (WGS84): 48° 27' 58'' North , 4° 32' 16'' West
Latitude & Longitude (decimal): 48.46623,-4.53803
GeoHash:G#: gbsg8xp82
Köppen climate type:Cfb : Temperate oceanic climate


"(Coming from Gouesnou). A locality north of Brest on the N788. [From Gouesnou] take the D67 west. Turn right at the intersection with the D26 and the road on the left leading to Kérivot. Close to the Kervenguy farm there is an old quarry where one can collect arsenopyrite, quartz, and wolframite." [Belot, 1978]

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


3 valid minerals.

Detailed Mineral List:

Arsenopyrite
Formula: FeAsS
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.
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: Chauris, L. (2014): Minéraux de Bretagne, Les Editions du Piat, 283.
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.
'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: 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.

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
'Arsenopyrite'2.EB.20FeAsS
Group 4 - Oxides and Hydroxides
'Quartz'4.DA.05SiO2
Group 9 - Silicates
'Muscovite'9.EC.15KAl2(AlSi3O10)(OH)2
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 2 - SULFIDES
AmBnXp, with (m+n):p = 1:2
Arsenopyrite2.12.4.1FeAsS
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
Unclassified Minerals, Rocks, etc.
'Tourmaline'-A(D3)G6(T6O18)(BO3)3X3Z
'Wolframite'-(Fe2+)WO4 to (Mn2+)WO4

List of minerals for each chemical element

HHydrogen
H MuscoviteKAl2(AlSi3O10)(OH)2
BBoron
B TourmalineA(D3)G6(T6O18)(BO3)3X3Z
OOxygen
O MuscoviteKAl2(AlSi3O10)(OH)2
O QuartzSiO2
O TourmalineA(D3)G6(T6O18)(BO3)3X3Z
O Wolframite(Fe2+)WO4 to (Mn2+)WO4
AlAluminium
Al MuscoviteKAl2(AlSi3O10)(OH)2
SiSilicon
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si QuartzSiO2
SSulfur
S ArsenopyriteFeAsS
KPotassium
K MuscoviteKAl2(AlSi3O10)(OH)2
MnManganese
Mn Wolframite(Fe2+)WO4 to (Mn2+)WO4
FeIron
Fe ArsenopyriteFeAsS
Fe Wolframite(Fe2+)WO4 to (Mn2+)WO4
AsArsenic
As ArsenopyriteFeAsS
WTungsten
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

Early Carboniferous
323.2 - 358.9 Ma



ID: 3148668
peraluminous syn orogenic plutonism

Age: Mississippian (323.2 - 358.9 Ma)

Lithology: Granite

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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