Minerals / Calcite flat-bladed crystals 2, Nantiago. (CWO)

Calcite, Calcium carbonate, CaCO3. Nantiago mine, Central Wales Orefield. The uncommonly flat bladed crystals of calcite are deposited on a piece of host rock of indeterminate nature. This type of crystal is more usually associated with baryte, which I don't think has been recorded at this mine. The gangue mineral at Nantiago is calcite, and the spoil heaps are littered with the mineral, mostly displaying it's rhombohedral habit.

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