Wiktionary
argutite
n. (context mineral English) A germanium dioxide mineral.
Wikipedia
Argutite
Argutite ( Ge O) is a rare germanium oxide mineral. It is a member of the rutile group.
It was first described for an occurrence in the Argut deposit, central Pyrenees, Haute-Garonne, France in 1983. The type locality is within a zinc ore deposit within lower Paleozoic sedimentary rocks that have undergone metamorphism. Associated minerals include sphalerite, cassiterite, siderite and briartite.