| Classification |
|---|
|
| Species: | 'Biotite' (not an IMA approved species) |
| Formula: | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Confirmation |
|---|
|
| Validity: | Believed Valid |
| Data |
|---|
|
| Mineral Data: | Click here to view Biotite data |
| Locality Data: | Click here to view Bestrée, Pointe du Raz, Plogoff, Quimper, Finistère, Brittany, France |
| Data Identifiers |
|---|
|
| Mindat Occurrence Record ID: | 1220752 |
| Long-form Identifier: | 1:3:1220752:7 |
| GUID (UUID V4): | a9239c13-ff0d-4d8a-884e-14c80393ad03 |
| Nearest other occurrences of Biotite |
|---|
|
|
| 1.6km (1.0 miles) | ⓘPointe du Raz, Plogoff, Quimper, Finistère, Brittany, France |
| 1.8km (1.1 miles) | ⓘFeunteun Aod Point, Plogoff, Quimper, Finistère, Brittany, France |
| 3.0km (1.8 miles) | ⓘPointe du Van, Cléden-Cap-Sizun, Quimper, Finistère, Brittany, France |
| 9.7km (6.0 miles) | ⓘNerroth island, Sein Island, Quimper, Finistère, Brittany, France |
| 11.6km (7.2 miles) | ⓘPlas ar Skoul, Sein Island, Quimper, Finistère, Brittany, France |
| 35.2km (21.9 miles) | ⓘTrégana beach alluvials, Trégana, Locmaria-Plouzané, Brest, Finistère, Brittany, France |
| 37.2km (23.1 miles) | ⓘBlancs Sablons beach alluvials, Le Conquet, Brest, Finistère, Brittany, France |
| 42.9km (26.7 miles) | ⓘRuscumunoc beach alluvial deposits, Ruscumunoc, Plouarzel, Brest, Finistère, Brittany, France |
| 48.4km (30.1 miles) | ⓘRocher du Crapaud beach alluvials, Lanildut, Brest, Finistère, Brittany, France |
| 52.6km (32.7 miles) | ⓘPenn ar Roc'h - Porz an Ejen area, Ushant, Brest, Finistère, Brittany, France |
| References |
|---|
|
Barrière, M., Chauris, L., Fouquet, Y., Guilcher, A., Lefort, J.-P., Pelhate, A. (1985): Notice explicative de la feuille Pointe du Raz à 1/50000, B.R.G.M., Editions du Service géologique national, p. 9. |
| Reference Search (possible matching items) |
|---|
 | | Book (edition) | | Greece. Other occurrences are found in Chile, Italy, France, Germany, Turkey, and Algeria. SELECTED REFERENCES:...nepheline-feldspathoid pegmatites in association with feldspar, biotite, muscovite, zircon, corundum, and sphene. Found...nepheline-feldspathoid pegmatites in association with feldspar, biotite, muscovite, zircon, corundum, and sphene; also...‘‘gummite’’ at Margnac, in the Massif Central, France. SELECTED REFERENCE: Cesbron, F., et al., Min....counties, Arizona; and at deposits in Mexico, Canada, France, Bulgaria, Czechoslovakia, and elsewhere. SELECTED |
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