A simple high-temperature growth apparatus was constructed to obtain large crystals of chemically gradient (In, Na)-doped MnWO(4)solid-solutions. This paper presents the crystal growth and characterisation of both MnWO(4)and epitaxially grown (In, Na): MnWO(4)crystals on MnWO4. These large monolithic crystals were made in two steps: A MnWO4 crystal was grown in the crystallographic main direction [001] applying the Czochralski method, followed by the top seeded growth of (In, Na): MnWO4 solid-solutions with an oriented seed crystal of MnWO4. Such a monolithic crystal will serve to fundamental investigation of coupling properties at boundaries between various multiferroic MnWO4-type-solid-solutions. (C) 2016 Elsevier B.V. All rights reserved.