A black franklinite crystal is either a seed for, or an inclusion in, a brown hendricksite crystal. Width of view 3.5mm. Stack of 30 images. Click on the image below for a higher resolution version.
Black franklinite, pink rhodonite and red fluorescent colourless calcite. Width of view 10mm. UV photo using a Convoy S2+. Click on the images below for a higher resolution version.
Black franklinite crystals with secondary copper minerals in between. Width of view 3.5mm. Stack of 25 images. Type Locality for franklinite. Click on the image below for a higher resolution version.
