• Webster's Revised Unabridged Dictionary
    • n Triploidite (Min) A manganese phosphate near triplite, but containing hydroxyl instead of fluorine.
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Century Dictionary and Cyclopedia
    • n triploidite A phosphate of iron and manganese occurring in monoclinic prismatic crystals, also in columnar to fibrous masses of a reddishbrown color. It closely resembles triplite, but differs from it in having the fluorin replaced by hydroxyl.
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