| | Description | |
| Type Locality: | Benallt Mine (Tyddyn Meirion mine; Ty Canol mine), Rhiw, Llanfaelrhys, Lleyn Peninsula, Gwynedd (Caernarvonshire), Wales, UK is the type locality for Bannisterite | | Quality of samples: | not specified / average specimens | | Confirmation | |
| Validity: | Believed Valid | | References | |
| References: | Smith, M.L. and Frondel, C. (1968) The related layered minerals ganophyllite, bannisterite and stilpnomelane. Mineralogical Magazine: 36: 893-913.; UK Journal of mines & Minerals, number 29 pp47-48 | | Data | |
| Mineral Data: | Click here to view Bannisterite data | | Locality Data: | Click here to view Benallt Mine (Tyddyn Meirion mine; Ty Canol mine), Rhiw, Llanfaelrhys, Lleyn Peninsula, Gwynedd (Caernarvonshire), Wales, UK |
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