5719 Goethite replacing Pyrite, Stellerite, Calcite, Lake Cooper quarry, Corop, Campaspe Shire, Victoria November 27, 2020 Steve Australasia Australia Victoria Interpenetrant slightly rounded pyrite cubes, some with truncated corners, altering to brown goethite with prismatic colourless striated prismatic stellerite crystals and minor white calcite crystals. Width of view 3.5mm. Stack of 50 images.
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