richterite

Etymology
Named in 1865 by Johann Friedrich August Breithaupt in honour of Hieronymous Theodor Richter (1824-1898), professor of chemistry at Freiberg University of Mining and Technology and the co-discoverer of indium.

Richter +

Noun

 * 1)  A basic silicate mineral of sodium, potassium, magnesium, manganese, and calcium belonging to the amphibole group