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Chalcophyllite Image

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 Chalcophyllite

Large Chalcophyllite Image

Mineral: Chalcophyllite: Cu++18Al2(AsO4)3(SO4)3(OH)27ยท33(H2O)
Comments: Altered rhyolite vug lined with chalcophyllite crystals. The largest crystal is 0.5 cm across and several have the perfect "stop sign" hexagon form.
Location: Majuba Hill Mine, Pershing County, Nevada, USA.
Scale: Picture size 2 cm.
Copyright: © John Veevaert
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