Fluorite, Blue Circle Quarry, Eastgate

Fluorite, Blue Circle Quarry, Eastgate
A block of altered limestone covered on one side with emerald green fluorite crystals. There are four oxidised cubo-octahedral crystals of galena and a little quartz on the rear. From the Blue Circle Quarry, Eastgate, Weardale.
Part of the Friends of Killhope mineral collection on loan to the museum.