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Sphalerite, Dolomite (Var: Ferroan Dolomite)


Sphalerite : (Zn,Fe2+)S, Dolomite (Var: Ferroan Dolomite) : CaMg(CO3)2

Photo Copyright © Steve Rust  - This image is copyrighted. Unauthorized reproduction prohibited.
Locality: Castell Mine (Dyffryn Castell Mine; New Castell Mine; West Esgairlle Mine; Gwaithddu Mine; Cripiau Bach Mine), Ponterwyd, Cwmrheidol, Ceredigion (Dyfed; Cardiganshire), Wales, UK
Complex translucent brown crystals to 3mm, on creamy ferroan dolomite.

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