rhodonite is a manganese inosilicate and member of the pyroxenoid group of minerals, crystallizing in the triclinic system

abstract background beautiful black close collection crystal decorative design gem gemmology gemological gemology gemstone geological geology inosilicate isolated jewelry little manganese material mineral mineralogy natural nature object ornamental pattern piece pink polished precious pyroxenoid raw red rhodonite rock rose rough sample semiprecious specimen stone structure surface texture textured triclinic