cupriferous

Example Sentences

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On ore smelting he describes the reduction of iron and lead ores and cupriferous silver or gold ores with lead.

From De Re Metallica, Translated from the First Latin Edition of 1556 by Agricola, Georgius

The formation was well studied by the miners of that country a century ago as containing a thin band of dark-coloured cupriferous shale, characterised at Mansfield in Thuringia by numerous fossil fish.

From The Student's Elements of Geology by Lyell, Charles, Sir

The yield of the argentiferous and cupriferous ores, proved, alas! to be but poor.

From The Life of Sir Richard Burton by Wright, Thomas

By Pot Assay.—Roasted cupriferous pyrites containing small quantities of gold and silver comes under this heading.

From A Text-book of Assaying: For the Use of Those Connected with Mines. by Beringer, Cornelius

According to Egleston the loss may be from 40 to 90% of the total gold present in cupriferous ores according to the temperature and duration of calcination.

From Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 2 "Gloss" to "Gordon, Charles George" by Various