Sphalerite from Silverbrook Mine, Ilsington, UK - 135.7g Double and steady progress

and steady progress

Auto Power Off: Automatically turns off when water runs out

Style or variant: Large Diamond

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Sphalerite from Silverbrook Mine, Ilsington, UK - 135.7g Double and steady progressA labelled Devon sphalerite specimen from Silverbrook Mine, Ilsington. The piece is a compact 80mm matrix specimen with grey black sphalerite rich areas, pale matrix and natural rusty orange iron staining across the surface. Silverbrook Mine is a small classic Devon lead and silver locality with recorded sphalerite, so this is best treated as a labelled British locality specimen rather than a showy cabinet crystal. Exact specimen shown in the photos.