English

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Etymology

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A classical compound of ptilo- +‎ -lite, so named on account of its feather-like, threaded appearance.

Noun

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ptilolite (plural ptilolites)

  1. (mineralogy, outdated) Mordenite; once designated as a new mineral, it was discovered to be identical with mordenite. [1]

References

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  1. ^ Clark, F.W. (1892) “Article XIII.--New Occurrence of Ptilolite”, in D., James, Dana, Edward S., editors, The American Journal of Science (3rd)‎[1], volume 44, number 260, New Haven, CT: Tuttle, Morehouse & Taylor, page 101:Both ptilolite and mordenite become simply representable by the same general formula Al2(Si2O5)5R'4+nAq.

Further reading

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