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La Redonde, Allègre, Le Puy-en-Velay, Haute-Loire, Auvergne-Rhône-Alpes, Francei
| Regional Level Types | |
|---|---|
| La Redonde | - not defined - |
| Allègre | Commune |
| Le Puy-en-Velay | Arrondissement |
| Haute-Loire | Department |
| Auvergne-Rhône-Alpes | Region |
| France | Country |
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Latitude & Longitude (WGS84):
45° North , 3° East (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~5km
Köppen climate type:
Other/historical names associated with this locality:
Auvergne; Rhône-Alpes
This vein, complex in structure, cuts across road D 134, 800 meters SW from La Redonde hamlet. Hosts rocks : Velay granite and migmatites.
It can be followed on 2 kilometers to the SW (Les Auvagniers and Reyrat woods).
Several mineralizing stages are known:
a) Microbrecciated black quartz with arsenopyrite
b) Low deposits of dark purple fluorite with agate and hematoid/white quartz crystals
c) Deposits of banded purple/green fluorite (cubic or octahedral) and white baryte blades alternating with quartz
d) Dissolution of the fluorite providing perimorphs
e) Very low deposits of pale blue/colorless cubic fluorite with baryte and galena in the cavities.
f) Alteration of the primary sulphides and formation of secondary minerals
This deposit was mined briefly for baryte in the late 1920s but stocks proved too small for a profitable operation. Today, the adit is collapsed and the shaft is backfilled since 2009.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Arsenopyrite Formula: FeAsS |
| ⓘ Baryte Formula: BaSO4 |
| ⓘ Fluorite Formula: CaF2 |
| ⓘ Galena Formula: PbS |
| ⓘ Goethite Formula: Fe3+O(OH) |
| ⓘ Hematite Formula: Fe2O3 |
| ⓘ Kaolinite Formula: Al2(Si2O5)(OH)4 |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Pyromorphite Formula: Pb5(PO4)3Cl |
| ⓘ Quartz Formula: SiO2 |
| ⓘ Quartz var. Agate Formula: SiO2 |
| ⓘ Quartz var. Chalcedony Formula: SiO2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| ⓘ | Arsenopyrite | 2.EB.20 | FeAsS |
| Group 3 - Halides | |||
| ⓘ | Fluorite | 3.AB.25 | CaF2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Goethite | 4.00. | Fe3+O(OH) |
| ⓘ | Hematite | 4.CB.05 | Fe2O3 |
| ⓘ | Quartz var. Agate | 4.DA.05 | SiO2 |
| ⓘ | var. Chalcedony | 4.DA.05 | SiO2 |
| ⓘ | 4.DA.05 | SiO2 | |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Baryte | 7.AD.35 | BaSO4 |
| Group 8 - Phosphates, Arsenates and Vanadates | |||
| ⓘ | Pyromorphite | 8.BN.05 | Pb5(PO4)3Cl |
| Group 9 - Silicates | |||
| ⓘ | Kaolinite | 9.ED.05 | Al2(Si2O5)(OH)4 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Goethite | Fe3+O(OH) |
| H | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| O | Oxygen | |
| O | ⓘ Quartz var. Agate | SiO2 |
| O | ⓘ Baryte | BaSO4 |
| O | ⓘ Quartz var. Chalcedony | SiO2 |
| O | ⓘ Goethite | Fe3+O(OH) |
| O | ⓘ Hematite | Fe2O3 |
| O | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| O | ⓘ Pyromorphite | Pb5(PO4)3Cl |
| O | ⓘ Quartz | SiO2 |
| F | Fluorine | |
| F | ⓘ Fluorite | CaF2 |
| Al | Aluminium | |
| Al | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| Si | Silicon | |
| Si | ⓘ Quartz var. Agate | SiO2 |
| Si | ⓘ Quartz var. Chalcedony | SiO2 |
| Si | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| Si | ⓘ Quartz | SiO2 |
| P | Phosphorus | |
| P | ⓘ Pyromorphite | Pb5(PO4)3Cl |
| S | Sulfur | |
| S | ⓘ Arsenopyrite | FeAsS |
| S | ⓘ Baryte | BaSO4 |
| S | ⓘ Galena | PbS |
| S | ⓘ Pyrite | FeS2 |
| Cl | Chlorine | |
| Cl | ⓘ Pyromorphite | Pb5(PO4)3Cl |
| Ca | Calcium | |
| Ca | ⓘ Fluorite | CaF2 |
| Fe | Iron | |
| Fe | ⓘ Arsenopyrite | FeAsS |
| Fe | ⓘ Goethite | Fe3+O(OH) |
| Fe | ⓘ Hematite | Fe2O3 |
| Fe | ⓘ Pyrite | FeS2 |
| As | Arsenic | |
| As | ⓘ Arsenopyrite | FeAsS |
| Ba | Barium | |
| Ba | ⓘ Baryte | BaSO4 |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
| Pb | ⓘ Pyromorphite | Pb5(PO4)3Cl |
Other Regions, Features and Areas containing this locality
Eurasian PlateTectonic Plate
- Moldanubian BeltOrogenic Belt
EuropeContinent
France
- ⭔AuvergneRegion
- Massif CentralHighland Region
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