CHALCOPYRITE,var. Blister Copper

Botryoidal chalcopyrite displaying some iridescence together with areas of metallic silver microcrystals of tennantite.?? An attractive specimen.

60mm x 60mm x 28mm.

St Agnes, Cornwall.?? Note that whilst the label states St. Agnes the location is more likely to be Redruth - Camborne and probably Cook's Kitchen mine.