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Thomsonite-Ca from
Marchlyn Mawr, Llanberis, Gwynedd (Caernarvonshire), 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 (Caernarvonshire), Wales, UK

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