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MARCASITE
Gwynfynydd m., Dolgellau, Gwynedd, Wales
Lenticular cog-wheel crystals to 10mm with acicular goethite.
Collected by R.W. Barstow from the Deep Adit level of the Chidlaw lode, May 1982.
Collection: National Museum of Wales, Cardiff Collection Ref: NMW 86.95G.M2
Photo courtesy of Mick COOPER © |
This photo is copyrighted to Mick COOPER. Reproduction is prohibited without written consent.
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