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from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Magnesium carbonate trihydrate.

from The Century Dictionary and Cyclopedia

  • n. Hydrous magnesium carbonate, MgCO3 + 3H2O, occurring in orthorhombic crystals and white fibrous masses: found in a coal-mine at Nesquehoning. Schuylkill county, Pennsylvania, and similarly elsewhere.


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