Photo by Yaiba Sakaguchi

This scorodite specimen is only 8mm long, but it is very pretty. It is from the Drakelands Mine, Plympton, Tavistock District, Devon, England, UK. It gets its name from the Greek σκορόδιου = “Scorodion”, which means it smells like garlic when heated. Scorodite can also be called Arsenic Sinter. It comes from the oxidation of arsenopyrite or other arsenic-bearing species.

Chemical Formula: Fe3+AsO4·2H2O

Source: https://www.mindat.org/min-3595.html