moncheite
/ˈmɒntʃɪʌɪt/(also moncheïte) Mineralogy
noun
A trigonal telluride and bismuthide of palladium and platinum, (Pt, Pd)(Te, Bi)2, occurring as minute metallic grey grains, often in deposits of chalcopyrite.
Origin
1960s; earliest use found in American Mineralogist. From Russian mončeit from monče- + -it.