“+ noun
Etymology: Swedish yttrotantal yttrotantalite (from yttr- — from New Latin yttria — + -o- + tantal tantalum, from New Latin tantalum ) + English -ite
: a mineral (Fe,Y,U,Ca,etc.)(Cb,Ta,Zr,Sn)O 4 consisting of a metamict oxide of iron, yttrium uranium, calcium, columbium, tantalum, zirconium, tin, and other minerals and probably related to samarskite — called also yttrocolumbite