Class : Silicates
    Subclass : Inosilicates
    Crystal System : Triclinic
    Chemistry : Na(Mn, Ca)₂Si₃O₈(OH)
    Rarity : Rare

Serandite forms an isomorphic series with pectolite, its calcic equivalent, the intermediate terms being called schizolite. It owes its name to the mineral collector J. M. Sérand, who participated in its collection on the island of Rouma in Guinea. Serandite is essentially a mineral of alkaline complexes, it crystallizes in the geodes of nepheline syenites and their pegmatites. It occurs in thick prismatic or tabular crystals, of a beautiful pale pink to salmon pink or red, sometimes pinkish gray color. It is sometimes cut but its rarity and its fairly low hardness do not allow it to rise to the rank of jewelry stone, it is more reserved for the collection. Its crystals are also sought after by mineral collectors.

This mineral twins around the composition plane [010], the contact twin is less frequent on (110).