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Updated: May 9, 2025
Captain Martin seconded Newport in this; Smith protested against it; he thought Newport was no refiner, and it did torment him "to see all necessary business neglected, to fraught such a drunken ship with so much gilded durt." This was the famous load of gold that proved to be iron pyrites.
If, therefore, it were proved, that either the one or other of those two substances had been consolidated by fusion, the other must be acknowledged as having had the same origin; but now I am to prove, from the natural history of mineral coal, that pyrites had been there formed by fusion; and then, by means of the known origin of that sulphureo-metallic substance, we shall extend our knowledge to the origin of every other mineral body.
These last-named rocks are auriferous in the Quebrada del Oro, near Guigue; and between Villa de Cura and the Morros de San Juan, in the mountain of Chacao. The gold is contained in pyrites, which are found sometimes disseminated almost imperceptibly in the whole mass of the gneiss,* and sometimes united in small veins of quartz.
I must observe, in the first place, that the substance just described under the name of grunstein, in every respect resembles that which forms layers in the mica-slate of Cabo Blanco, and veins near Caracas. It differs only by containing neither quartz, garnets, nor pyrites.
He had not gone far before he discovered that iron pyrites was the only "gold" in that locality. The hole was never filled up, and was now almost hidden from sight by a heavy growth of underbrush. "That's the place for me," Jack mused. A few strides took him to it, and he stepped in to await, in concealment, the passage of the oncoming horsemen.
And to keep them from telling any of the villagers where they had found the pyrites, they were to be deprived of water all day long. By night their tongues would be too swollen for speech. For they had been sentenced to the No Shade torture, as well; their heads would be exposed all day long to the burning sun itself.
It was of three colors light blue, dark blue, and purple. The golden specks, however, with which it was sprinkled really spots of yellow pyrites rendered it useless to the gem-engravers of Pliny's time. The zathene, the gassinades, and the narcissitis were gems of inferior value.
They would not confound Auvergne and the granitic valley of Caracas in the same denomination; that of a country of extinct volcanoes. I never could have pronounced the opinion, that the Silla and the Cerro de Avila, mountains of gneiss and mica-slate, were in dangerous proximity to the city of Caracas because they contained a great quantity of pyrites in subordinate beds of primitive limestone.
"I'm a greater believer in what the theater people call 'atmosphere. Some of your facts, Mr. Ingerman, remind me of an expert's report in a mining prospectus. When tested by cyanide of potassium the gold in the ore often changes into iron pyrites. But don't hug the delusion that I shall neglect Steynholme.
Basil Valentine, who was one of the greatest alchemists of the 16th century, discovered many of the properties of the metal antimony, and prepared and examined many compounds of that metal; he made green vitriol from pyrites, brandy from fermented grape-juice, fulminating gold, sulphide of potash, and spirits of salt; he made and used baths of artificial mineral waters, and he prepared various metals by what are now called wet methods, for instance, copper, by immersing plates of iron in solutions of bluestone.
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