“Mordenite needles with yellow jarosite (although almost equal Al and Fe, so mid range to alunite).
5MP Chinese unbranded CMOS camera with bellows and FYSCOPE 4X Semi Plan Achromatic Objective Lens. Processed with Zerene stacker DMap and post stacking cleanup with Faststone.
Collection and photograph of Rod Martin.”
Rod Martin - 24th February 2019