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Thomsonite-Ca from
Marchlyn Mawr, Llanberis, Gwynedd, Wales, UK

Description
Quality of samples:not specified / average specimens
Confirmation
Validity:Believed Valid
References
References:Williams, D., 1924. On two olivine-dolerite dykes in Snowdonia. Proceedings of the Liverpool Geological Society, 14, 38-47.
Data
Mineral Data:Click here to view Thomsonite-Ca data
Locality Data:Click here to view Marchlyn Mawr, Llanberis, Gwynedd, Wales, UK
Nearest other occurrences of Thomsonite-Ca
216.7km (134.7 miles) Bruslee quarry, Ballyclare, Co. Antrim, Northern Ireland, UK
Mineral and/or Locality  
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