Minggu, 21 Agustus 2011

Hot! Silver Prices

U.S.Geological Survey (USGS): Silver Statistics and Information: Silver has been used for thousands of years as ornaments and utensils, for trade, and as the basis for many monetary systems. Of all the metals, pure silver has the whitest color, the highest optical reflectivity, and the highest thermal and electrical conductivity. Also, silver halides are photosensitive. Owing to the

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