Adamite
Adamite is a mineral that can be either yellow, purple, green, pink, or yellowish-green in color and is made from crystals.  It is very easy to break and it can be scratched by a copper penny.  Adamite is not radioactive.  It is named for the French mineralogist Gilbert Joseph Adam (1795-1881), who was the person who discovered it.   It is mainly found in the Atacama Desert in Chile. Adamite is also used for other commercial resources.