“Stannoidite from the type locality! Sphalerite (grey) with tiny inclusions of chalcopyrite (yellow), surrounded by chalcopyrite (yellow), galena (off white), and polygonal-granular stannoidite (light-brown to brown-grey reflectance pleochroism). Reflected plane polarized light digital image in air. Width of image 0.5 mm. Ore microscopy is the only method that illuminates the darkness of the opaque “grey ugly” with true reflectance colors! Ex Hidemichi Hory collection, G. Grundmann photo. ”