5719 Goethite replacing Pyrite, Stellerite, Calcite, Lake Cooper quarry, Corop, Campaspe Shire, 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.