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URL: https://www.mindat.org/loc-53115.html

⇱ Roc de Courlande, Chastreix, Issoire, Puy-de-Dôme, Auvergne-Rhône-Alpes, France

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Roc de Courlande, Chastreix, Issoire, Puy-de-Dôme, Auvergne-Rhône-Alpes, Francei
Regional Level Types
Roc de CourlandeGroup of Outcrops
ChastreixCommune
IssoireArrondissement
Puy-de-DômeDepartment
Auvergne-Rhône-AlpesRegion
FranceCountry

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Latitude & Longitude (WGS84):
45° 31' 37'' North , 2° 46' 22'' East
Latitude & Longitude (decimal):
Type:
Group of Outcrops
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Mont-Dore1,787 (2017)5.6km
La Tour-d’Auvergne810 (2016)6.5km
Picherande379 (2016)7.0km
La Bourboule2,162 (2016)7.3km
Saint-Donat296 (2016)7.7km
Mindat Locality ID:
53115
Long-form identifier:
mindat:1:2:53115:0
GUID (UUID V4):
0
Other/historical names associated with this locality:
Auvergne; Rhône-Alpes
Other Languages:
French:
Roc de Courlande, Chastreix, Issoire, Puy-de-Dôme, Auvergne-Rhône-Alpes, France


Trachyandesite dome-flow, with numerous mafic enclaves, coming from Mont Redon. Good outcrops on the road to Chastreix-Sancy ski station, just below the Roc de Courlande.

Note on the mineral list: Titanite was erroneously reported following the beginning of this discussion: https://www.mindat.org/mesg-601214.html. Actually, the crystals photographed by Alex are titanite, but they couldn't have come from Roc de Courlande where titanite was never reported by dozens of micro-mineralogists who have collected here (Jean-Marc Johannet).

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


12 valid minerals. 5 erroneous literature entries.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Entries shown in red are rocks recorded for this region.

Detailed Mineral List:

ⓘ Albite
Formula: Na(AlSi3O8)
ⓘ 'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
ⓘ '
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Description: crystals have been analysed and are actually fluorophlogopite
ⓘ Diopside
Formula: CaMgSi2O6
ⓘ
Formula: NaCa2Mg5(Si7Al)O22(OH)2
Description: crystals have been analysed and are actually fluoro-edenite
ⓘ Enstatite
Formula: Mg2Si2O6
Description: other reference: Designolle J.L. (1996). Massif du Sancy (Puy de Dôme). Le Cahier des Micromonteurs, (4), 8-9.
ⓘ
Formula: Fe2+2SiO4
ⓘ Fluoro-edenite
Formula: NaCa2Mg5(Si7Al)O22F2
ⓘ Fluorophlogopite
Formula: KMg3(Si3Al)O10F2
ⓘ Hematite ?
Formula: Fe2O3
ⓘ Ilmenite
Formula: Fe2+TiO3
ⓘ Magnetite
Formula: Fe2+Fe3+2O4
Description: other reference: Designolle, J.L. (1996). Massif du Sancy (Puy de Dôme). Le Cahier des Micromonteurs, (4), 8-9.
ⓘ
Formula: KMg3(AlSi3O10)(OH)2
Description: crystals have been analysed and are actually fluorophlogopite
ⓘ 'Pyroxene Group' ?
Formula: ADSi2O6
Description: This is either enstatite or diopside.
ⓘ Sanidine
Formula: K(AlSi3O8)
Description: other reference: Designolle, J.L. (1996). Massif du Sancy (Puy de Dôme). Le Cahier des Micromonteurs, (4), 8-9.
ⓘ
Formula: CaTi(SiO4)O
Description: See discussion on https://www.mindat.org/mesg-601214.html "Erroneously reported as titanite was never found at Roc de Courlande. The sample illustrated by Alex should come from another place in Massif du Sancy like Le Capucin https://www.mindat.org/loc-123571.html Le Puy de la Tache https://www.mindat.org/loc-49421.html or Le Ravin des Chèvres https://www.mindat.org/loc-159540.html" (Jean-Marc Johannet)
ⓘ Tridymite
Formula: SiO2
ⓘ Zircon
Formula: Zr(SiO4)
ⓘ Zirconolite
Formula: CaZrTi2O7

Gallery:

Mg2Si2O6ⓘ Enstatite
NaCa2Mg5(Si7Al)O22F2ⓘ Fluoro-edenite
KMg3(Si3Al)O10F2ⓘ Fluorophlogopite
Fe2+Fe3+2O4ⓘ Magnetite
K(AlSi3O8)ⓘ Sanidine
Zr(SiO4)ⓘ Zircon

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘHematite ?4.CB.05Fe2O3
ⓘIlmenite4.CB.05Fe2+TiO3
ⓘTridymite4.DA.10SiO2
ⓘZirconolite4.DH.30CaZrTi2O7
Group 9 - Silicates
ⓘFayalite ?9.AC.05Fe2+2SiO4
ⓘZircon9.AD.30Zr(SiO4)
ⓘTitanite ?9.AG.15CaTi(SiO4)O
ⓘEnstatite9.DA.05Mg2Si2O6
ⓘDiopside9.DA.15CaMgSi2O6
ⓘEdenite ?9.DE.15NaCa2Mg5(Si7Al)O22(OH)2
ⓘFluoro-edenite9.DE.15NaCa2Mg5(Si7Al)O22F2
ⓘPhlogopite ?9.EC.20KMg3(AlSi3O10)(OH)2
ⓘFluorophlogopite9.EC.20KMg3(Si3Al)O10F2
ⓘSanidine9.FA.30K(AlSi3O8)
ⓘAlbite9.FA.35Na(AlSi3O8)
Unclassified
ⓘ'Biotite' ?-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ'Pyroxene Group' ?-ADSi2O6
ⓘ'Apatite'-Ca5(PO4)3(Cl/F/OH)

List of minerals for each chemical element

HHydrogen
Hⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Hⓘ EdeniteNaCa2Mg5(Si7Al)O22(OH)2
Hⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Hⓘ ApatiteCa5(PO4)3(Cl/F/OH)
OOxygen
Oⓘ AlbiteNa(AlSi3O8)
Oⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oⓘ DiopsideCaMgSi2O6
Oⓘ EdeniteNaCa2Mg5(Si7Al)O22(OH)2
Oⓘ EnstatiteMg2Si2O6
Oⓘ FayaliteFe22+SiO4
Oⓘ HematiteFe2O3
Oⓘ IlmeniteFe2+TiO3
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Oⓘ SanidineK(AlSi3O8)
Oⓘ TitaniteCaTi(SiO4)O
Oⓘ TridymiteSiO2
Oⓘ ZirconZr(SiO4)
Oⓘ ZirconoliteCaZrTi2O7
Oⓘ Fluoro-edeniteNaCa2Mg5(Si7Al)O22F2
Oⓘ Pyroxene GroupADSi2O6
Oⓘ FluorophlogopiteKMg3(Si3Al)O10F2
Oⓘ ApatiteCa5(PO4)3(Cl/F/OH)
FFluorine
Fⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Fⓘ Fluoro-edeniteNaCa2Mg5(Si7Al)O22F2
Fⓘ FluorophlogopiteKMg3(Si3Al)O10F2
Fⓘ ApatiteCa5(PO4)3(Cl/F/OH)
NaSodium
Naⓘ AlbiteNa(AlSi3O8)
Naⓘ EdeniteNaCa2Mg5(Si7Al)O22(OH)2
Naⓘ Fluoro-edeniteNaCa2Mg5(Si7Al)O22F2
MgMagnesium
Mgⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Mgⓘ DiopsideCaMgSi2O6
Mgⓘ EdeniteNaCa2Mg5(Si7Al)O22(OH)2
Mgⓘ EnstatiteMg2Si2O6
Mgⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Mgⓘ Fluoro-edeniteNaCa2Mg5(Si7Al)O22F2
Mgⓘ FluorophlogopiteKMg3(Si3Al)O10F2
AlAluminium
Alⓘ AlbiteNa(AlSi3O8)
Alⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alⓘ EdeniteNaCa2Mg5(Si7Al)O22(OH)2
Alⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Alⓘ SanidineK(AlSi3O8)
Alⓘ Fluoro-edeniteNaCa2Mg5(Si7Al)O22F2
Alⓘ FluorophlogopiteKMg3(Si3Al)O10F2
SiSilicon
Siⓘ AlbiteNa(AlSi3O8)
Siⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siⓘ DiopsideCaMgSi2O6
Siⓘ EdeniteNaCa2Mg5(Si7Al)O22(OH)2
Siⓘ EnstatiteMg2Si2O6
Siⓘ FayaliteFe22+SiO4
Siⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Siⓘ SanidineK(AlSi3O8)
Siⓘ TitaniteCaTi(SiO4)O
Siⓘ TridymiteSiO2
Siⓘ ZirconZr(SiO4)
Siⓘ Fluoro-edeniteNaCa2Mg5(Si7Al)O22F2
Siⓘ Pyroxene GroupADSi2O6
Siⓘ FluorophlogopiteKMg3(Si3Al)O10F2
PPhosphorus
Pⓘ ApatiteCa5(PO4)3(Cl/F/OH)
ClChlorine
Clⓘ ApatiteCa5(PO4)3(Cl/F/OH)
KPotassium
Kⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Kⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Kⓘ SanidineK(AlSi3O8)
Kⓘ FluorophlogopiteKMg3(Si3Al)O10F2
CaCalcium
Caⓘ DiopsideCaMgSi2O6
Caⓘ EdeniteNaCa2Mg5(Si7Al)O22(OH)2
Caⓘ TitaniteCaTi(SiO4)O
Caⓘ ZirconoliteCaZrTi2O7
Caⓘ Fluoro-edeniteNaCa2Mg5(Si7Al)O22F2
Caⓘ ApatiteCa5(PO4)3(Cl/F/OH)
TiTitanium
Tiⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Tiⓘ IlmeniteFe2+TiO3
Tiⓘ TitaniteCaTi(SiO4)O
Tiⓘ ZirconoliteCaZrTi2O7
FeIron
Feⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feⓘ FayaliteFe22+SiO4
Feⓘ HematiteFe2O3
Feⓘ IlmeniteFe2+TiO3
Feⓘ MagnetiteFe2+Fe23+O4
ZrZirconium
Zrⓘ ZirconZr(SiO4)
Zrⓘ ZirconoliteCaZrTi2O7

Other Regions, Features and Areas containing this locality

Eurasian PlateTectonic Plate
EuropeContinent
France

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References

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