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pyrites |
Also found in: Dictionary/thesaurus, Wikipedia, Hutchinson | 0.06 sec. |
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pyrites 1. another name for pyrite 2. any of a number of other disulphides of metals, esp of copper and tin |
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| My host says that the two principal improvements introduced by foreigners have been, first, reducing by previous roasting the copper pyrites -- which, being the common ore in Cornwall, the English miners were astounded on their arrival to find thrown away as useless: secondly, stamping and washing the scoriae from the old furnaces -- by which process particles of metal are recovered in abundance. Straight from the ocean's depths rose towering cliffs, shot with brown and blues and greens--withered moss and lichen and the verdigris of copper, and everywhere the rusty ocher of iron pyrites. |
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