Synthesis and crystallographic data are reported for the double rubidium-scandium chromate RbSc(CrO 4 ) 2 . The parameters of the orthorhombic cell are a = 14.836(2) ; b = 5.627(1) and c = 8.835(4) , Z = 4. The compound is closely related to the lamellar double chromates with other alkali metal cations, iron, lanthanides and yttrium offering the advantage of obtaining inorganic materials for electronics.