• Webster's Revised Unabridged Dictionary
    • n Mirabilite (Min) Native sodium sulphate; Glauber's salt.
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Century Dictionary and Cyclopedia
    • n mirabilite A name given to the hydrous sulphate of sodium, or Glauber salt, occurring usually in a state of efflorescence about salt-springs. It is used as a substitute for soda in the manufacture of glass.
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