Minerals / Calcite flat-bladed crystals 1, Nantiago. (CWO)
Calcite, Calcium carbonate, CaCO3. Nantiago mine, Central Wales Orefield. The bulk of this specimen is massive calcite. One face is covered with bladed crystals. This type of calcite crystal is not very common, and in appearance, the specimen could easily be mistaken for baryte.
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