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Roc de Courlande, Chastreix, Monts-Dore massif, Puy-de-Dôme, Auvergne, France

Trachy-andesite 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.

References

- Designolle, J.L. (1996): Massif du Sancy (Puy de Dôme). Le Cahier des Micromonteurs, (4), 8-9.
- Gourgaud, A. (1985): Mélanges de magmas dans les séries alcalines et calco-alcalines : leur role dans la genèse des laves intermédiaires et leur influences sur les mécanismes éruptifs. PhD thesis, Clermont-Ferrand, 522 pp.

Mineral List

Albite
'Apatite'
Biotite
Diopside
Edenite
Enstatite
Fayalite
Fluoro-edenite
Fluorophlogopite
Hematite ?
Ilmenite
Magnetite
Phlogopite
'Pyroxene Group' ?
Sanidine
Tridymite
Zircon


17 entries listed. 11 valid minerals. 4 erroneous literature entries.

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Copyright © Jolyon Ralph and Ida Chau 1993-2011. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 19th Jun 2011 10:27:41
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