Definitionn. any of various metallic-looking sulfides
Last update: July 4, 2015
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Iron consists of pyrites. [Please select]
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Iron-pyrites come almost entirely from Department. [Please select]
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We picked up some very fine specimens of "infernal grape," in the form of nearly round balls of iron pyrites. [Please select]
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This Glover tower is placed between the sulphur burners or pyrites kilns and the first lead chamber. [Please select]
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A fresh section of it shows it to be Arsenical Iron Pyrites, each piece weighing four or five ounces. [Please select]
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The pyrites ordinarily contains, or is accompanied by much gold, which it protects from amalgamation. [Please select]
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This separation of the pyrites from the pulverized rock is called "concentrating the tailings," and the material collected is called "concentrated tailings." [Please select]
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A mixture of common salt assists the decomposition of the pyrites. [Please select]
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] The London clay is very tenacious, and near the surface is generally of a brown colour, probably owing to the decomposition of the iron pyrites which it contains. [Please select]
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Black above, the Mimic Geotrupes is the colour of copper pyrites below; also black in all parts exposed to the light of day, the Stercoraceous Geotrupes displays a ventral surface of a glorious amethyst violet. [Please select]
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