Calcite and Pyrite from Greystone Quarry, Cornwall

Calcite and Pyrite from Greystone Quarry, Lezant, Cornwall, England

Small specimen pieces of calcite and pyrite from Greystone Quarry.

While not exactly show stopping specimens these are popular amongst collectors of Cornish minerals.

The Calcite here is a bright pink fluorescent under 365nm, suggesting it is manganese bearing - unfortunately I forgot to take a photo of this.