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n.1.(Min.) A manganese phosphate near triplite, but containing hydroxyl instead of fluorine.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
The unusually high quality of the triploidite from this locality makes it of special interest to collectors, and the occurrence of hessite in pods of digenite is of scientific interest, since these minerals normally occur in hydrothermal deposits.
These include isolated, somewhat brecciated pods of phosphate minerals up to a meter across composed predominantly of lithiophilite and albite with lesser amounts of triploidite, triplite and triphylite.
Table 1 gives microprobe analyses for the lithiophilite, triploidite, triplite and fluorapatite.
Triplite occurs sparingly as dark brown, waxy grains and patches associated with lithiophilite and triploidite in some of the pods.
Triploidite [(Mn,[Fe.sup.+2]).sub.2](P[O.sub.4])(OH)
Triploidite, while not a rare mineral, is certainly an uncommon one, especially in euhedral crystals.
One specimen composed chiefly of lithiophilite and triploidite contains rare, minute grains of a vitreous, green, unidentified mineral.