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This newspaper page contains 4 articles. Subscribers can read the full text of each article.
Newspaper
Medicine Hat News
Location
Medicine Hat, Alberta, Canada
Date
Oct 22, 2012
Page
6
Silver blends with other metals to form alloys and appears as a byproduct of refining copper gold lead and zinc. It is valuable but cheaper than gold used in artistic jewelry and in electrical components and as a chemical catalyst. Silver compounds are used in photography films disinfection medicine and dentistry fillings.
Silver is a precious metal used for jewelry mirrors and tableware and traded as currency and investment. It is a chemical element with symbol Ag and atomic number 47. It is a soft, highly conductive, ductile metal found in native form.
The text traces silver currency from Lydia around 700 B C to modern uses. It notes electrum origins, refined pure silver coinage, and the British pound as a sterling standard. It mentions 1964 U S coins 90 percent silver and cessation of circulation in 1970, plus Canadian minting and Utah legal tender status. It closes with silver as investment and top producers listing Mexico at 22.6 million ounces in 2011.
The article explains sterling silver as 92.5 percent silver with 7.5 percent copper and stamped 925. It notes sterling is harder than pure silver, has a lower melting point, and is often plated with fine silver rhodium or gold. Silversmiths work at room temperature using polished tools, and join pieces by soldering or brazing.
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