noun, plural py·ri·tes.Mineralogy.
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Origin of pyrites
Words nearby pyrites
Example sentences from the Web for pyrites
Nor do I consider that the fires in the mine Correction by Mr. Whitworth.originated in the decomposition of the pyrites.A Report on Washington Territory|William Henry Ruffner
Besides, it is easier to obtain Vitriol from the Pyrites than from those other mineral substances.
It consisted in the substitution of flint for pyrites, and a furrowed plate of steel in lieu of the wheel.The Ornithology of Shakespeare|James Edmund Harting
The pyrites are plentiful and produce exportable quantities of sulfur and sulfur products.Area Handbook for Bulgaria|Eugene K. Keefe, Violeta D. Baluyut, William Giloane, Anne K. Long, James M. Moore, and Neda A. Walpole
Sometimes also there is Alum in the vitriolic waters drawn off the Pyrites.