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from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A trigonal-pyramidal mineral containing aluminum, arsenic, hydrogen, magnesium, manganese, and oxygen.

from The Century Dictionary and Cyclopedia

  • n. A hydrous arseniate of manganese, aluminium, and magnesium, occurring in small rhombohedral crystals of a red color at Nordmark in Sweden. Also called diadelphite.


-ite (Wiktionary)


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