Hemimorphite is a basic hydrous zinc silicate. It was formally classed alongside Smithsonite as Calamine, until it was discovered that these minerals are in fact slightly different from each other. It can be found in white, colourless, beige, yellow, light brown or blue. Its name comes from the Greek hemi, meaning half and morph, meaning shape, as it has different crystal terminations on each end of a single crystal. However this formation is rarely seen as most hemimorphite
