1. a mineral, manganese metasilicate, MnSiO3, occurring usually in rose-red masses, sometimes used as an ornamental stone; manganese spar.

Origin of rhodonite

1815–25; < German Rhodonit < Greek rhódon rose1 + German -it -ite1
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British Dictionary definitions for rhodonite


  1. a brownish translucent mineral consisting of manganese silicate in triclinic crystalline form with calcium, iron, or magnesium sometimes replacing the manganese. It occurs in metamorphic rocks, esp in New Jersey and Russia, and is used as an ornamental stone, glaze, and pigment. Formula: MnSiO 3

Word Origin for rhodonite

C19: from German Rhodonit, from Greek rhodon rose + -ite
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