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pyrites |
Also found in: Encyclopedia, Wikipedia, Hutchinson | 0.09 sec. |
pyrites [pie-rite-eez] Noun pl -tes 1. same as pyrite 2. a disulphide of a metal, 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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