Acanthite is a silver sulfide that typically forms in pseudo-cubic and pseudo-octahedral crystals. It was named after the Greek word “akantha” meaning thorn, as it also can create steeply peaked, thorn-like crystals. Ranging from steely grey to an almost black, gunmetal coloration, well-formed acanthite can have a dramatic and artistic look that many liken to modern art sculptures.
This is a prime example with a dynamic and dimensional form. It consists of a cluster of intergrown, branching crystals with winding arms and tiny cavities that is crowned with large, rounded crystals. Hiding in the back is a small cluster of sharp, shiny chalcopyrite crystals that add an unexpected accent to the sculptural piece. Reminiscent of octopi, mushrooms, or even sci-fi aliens, the specimen is interpretive and easily captures the imagination with its unusual combination of textures and shapes.