Definitions

from The Century Dictionary.

  • noun Aluminite; hydrous tribasic sulphate of aluminium, found in Sussex, England, and at Halle in Prussia, in reniform masses and botryoidal concretions of a white or yellowish-white color.
  • noun In petrography, a phaneric, granular igneous rock composed of orthorhombic and monoclinic pyroxenes; a variety of pyroxenite.

from the GNU version of the Collaborative International Dictionary of English.

  • noun (Min.) A hydrous sulphate of alumina occurring in white reniform masses.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun A hydrous aluminium sulfate mineral with formula Al2SO4(OH)4·7(H2O).

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