What is "moschellandsbergite"

n. (context mineralogy English) A rare isometric mineral made up of a silver-white amalgam of mercury and silver, having the chemical formula Ag₂Hg₃.

Moschellandsbergite is a rare isometric mineral made up of a silver-white amalgam of mercury and silver with the chemical makeup AgHg.

It was first described in 1938 and named after Moschellandsberg Mountain near Obermoschel, Rhineland-Palatinate, Germany. It is considered a low-temperature hydrothermal mineral which occurs with metacinnabar, cinnabar, mercurian silver, tetrahedrite– tennantite, pyrite, sphalerite and chalcopyrite.