Economic Geology Or Geology in Its Relations to the Arts And Manufactures
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5; and in fusibility it stands intermediate between gold and platinum. When native it is alloyed with a little platinum and iridium, or with gold and silver, as in the Porpezite of Peru, which con- sists, according to Berzelius, of 85. 98 gold, 9. 85 palladium, and 4. 17 silver. It is ductile as well as malleable, and is considerably harder than platinum. It is oxidised and dis- solved by nitric acid; but its proper solvent is nitro-hydro- chloric acid. It forms alloys, most of which are brittl...e, with arsenic, iron, bismuth, lead, tin, copper, silver, gold, and plati- num ; the alloy with nickel is ductile. It is sometimes used for the finely divided scales of mathematical and astronomical instruments; for the smaller chemical weights; and i per cent added to steel produces a smoother cutting edge.
Silver.
The early and well-known metal Silver is found native in the older rocks, in threads and strings, in arborescent moss-like aggregates, and in plates and nuggets often of considerable magnitude.
What to read after Economic Geology Or Geology in Its Relations to the Arts And Manufactures?
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To quickly assess the difficulty of the text, read a short excerpt:
5; and in fusibility it stands intermediate between gold and platinum. When native it is alloyed with a little platinum and iridium, or with gold and silver, as in the Porpezite of Peru, which con- sists, according to Berzelius, of 85. 98 gold, 9. 85 palladium, and 4. 17 silver. It is ductile as well as malleable, and is considerably harder than platinum. It is oxidised and dis- solved by nitric acid; but its proper solvent is nitro-hydro- chloric acid. It forms alloys, most of which are brittl...e, with arsenic, iron, bismuth, lead, tin, copper, silver, gold, and plati- num ; the alloy with nickel is ductile. It is sometimes used for the finely divided scales of mathematical and astronomical instruments; for the smaller chemical weights; and i per cent added to steel produces a smoother cutting edge.
Silver.
The early and well-known metal Silver is found native in the older rocks, in threads and strings, in arborescent moss-like aggregates, and in plates and nuggets often of considerable magnitude.
What to read after Economic Geology Or Geology in Its Relations to the Arts And Manufactures?
You can find similar books in the "Read Also" column, or choose other free books by David Page to read onlineMoreLess
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