Glassy brown bipyramidal crystals of a probable beudantite group mineral, with nearby yellowish-green material probably also the same species. Width 2.25mm. Collected underground. Stack of 90 images.
Glassy brown bipyramidal crystals of a probable beudantite group mineral, with nearby yellowish-green material probably also the same species. Width 2.25mm. Collected underground. Stack of 90 images.