Blue-black covellite in massive quartz. Also present but not in photo, sulphur and jarosite. Width of view 5.75mm. Stack of 24 items. Click on the image below for a higher resolution version.
Blue-black crystals of covellite on iridescent chalcopyrite. Ex Margaret Brown Collection. Acquired by Margaret in 1994 from Trevor Dart. Width of view 11.5mm. Stack of 66 images. Click on the image below for a higher...
A tiny ball of dark blue covellite crystals, probably covering a chalcopyrite crystal, with prismatic brown dravite, and a vein of pyrite and chalcopyrite in quartz. Ex Bernie and Margaret Day Collection. Width of view...
ex Bernie and Margaret Day Collection
