Keywords: John S Mason, machynlleth, making of ynyslas, ynyslas, shore fishing, geology, earth science, research, interpretation, conservation, photography, site assessment, wales, mid-wales, mineralisation, caledonian, dolgellau gold-belt, gold-belt, deformation, tucekite, pyrite, pyromorphite, geologist, dalradian, scottish, minescan, cwmorthin, web design, graphics design
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2024年12月23日