Hematite
Mahurangi Grits, Opahi Bay, Mahurangi West, Auckland Region, New Zealand
Very small spheres of hematite (shiny black) in the husk of a former primary mineral in the basalt.
5MP Chinese unbranded CMOS camera with bellows and "2np" Reichert objective (approx equal to a plan 5-5.5x). Processed with Zerene stacker DMap and post stacking cleanup with Faststone.
Collection and photograph of Rod Martin.