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from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A calcium manganese nesosilicate mineral occurring in metamorphosed limestones.

from The Century Dictionary and Cyclopedia

  • n. A silicate of calcium and manganese occurring in bluish-green prismatic crystals at Franklin Furnace, New Jersey, It is analogous in formula to the species of the chrysolite group.


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