• Webster's Revised Unabridged Dictionary
    • n Warwickite (Min) A dark brown or black mineral, occurring in prismatic crystals imbedded in limestone near Warwick, New York. It consists of the borate and titanate of magnesia and iron.
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Century Dictionary and Cyclopedia
    • n warwickite A borotitanate of magnesium and iron, occurring in dark-brown to black acicular crystals embedded in granular lime stone. Named from the locality of its occurrence, near Warwick, New York.
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