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Ankerite, Quartz


Ankerite : Ca(Fe2+ ,Mg,Mn2+)(CO3)2, Quartz : SiO2

Photo Copyright © Steve Rust  - This image is copyrighted. Unauthorized reproduction prohibited.
Locality: Nant Helen opencast coal mine, Onllwyn, Neath-Port Talbot (West Glamorgan; Glamorgan), Wales, UK
Ankerite crystals to 6mm. Steve Rust photo & collection

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