| | Description | |
| Quality of samples: | not specified / average specimens | | Confirmation | |
| Validity: | Believed Valid | | References | |
| References: | Chauris L. (1997), Les sables noirs à ilménite et magnétite de la baie de Saint-Brieuc en Bretagne septentrionale, Bull. Soc. Sc. Nat. Ouest de la France, nouvelle série, tome 19, (2), pp. 84-95. | | Data | |
| Mineral Data: | Click here to view Tourmaline data | | Locality Data: | Click here to view Saint-Laurent de la Mer beach alluvials, Saint-Brieuc, Côtes-d'Armor, Brittany, France |
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