“Reflected light digital image by the late Alan Criddle of nukundamite (strongly pleochroic from red-brown to grey) intergrown with covellite (blue) and pyrite (white) in plane polarised light. The crossed polars image shows nukundamite to be strongly anisotropic with metallic green rotation tints. Image on the type specimen BM 1974,5. See Rice et al. (1979): Mineral. Mag. 43: 193-200.”