title: Rickardite
text: # Rickardite
  
  Rickardite is a telluride mineral, a copper telluride $(Cu_7Te_5)$ or $Cu_{3-x(x=0to0.36)}Te_2.$ It was first described for an occurrence in the Good Hope Mine, Vulcan district, Gunnison County, Colorado, US, and named for mining engineer Thomas Arthur Rickard (1864–1953). It is a low temperature hydrothermal mineral that occurs associated with vulcanite, native tellurium, cameronite, petzite, sylvanite, berthierite, pyrite, arsenopyrite and bornite.
  
  