Yuksporite is a rare inosilicate mineral with double width, unbranched chains, and the complicated chemical formula K4(Ca,Na)14Sr2Mn(Ti,Nb)4(O,OH)4(Si6O17)2(Si2O7)3(H2O,OH)3. It contains the relatively rare elements strontium , as well as the commoner metallic elements potassium , sodium. As with all silicates, it contains groups of linked silicon atoms.
Yuksporite is a member of the umbite group that has just two known members, umbite, K2ZrSi3O9.H2O, and yuksporite. It was first reported in 1922, from nepheline syenite occurrences in the Kola Peninsula for the locality, near Mount Yukspor