Search results
Results From The WOW.Com Content Network
Skip to main content. Subscriptions; Animals
The zolotnik (Russian золотник, from the Russian zoloto, or золото, meaning gold) was used in Russia as early as the 11th century to denote the weight of gold coins. In its earliest usage, the zolotnik was 1/96 of a pound, but it later was changed to represent 1/72 of a pound.
"The words "silver" and "sterling silver" describe a product that contains 92.5% pure silver. Silver products sometimes may be marked 925, which means that 925 parts per thousand are pure silver. Some jewellery described as "silver plate" has a layer of silver applied to a base metal. "Coin silver" is used for compounds that contain 90% pure ...
Fine silver, which is 99.9% pure silver, is relatively soft, so silver is usually alloyed with copper to increase its hardness and strength.Sterling silver is prone to tarnishing, [1] and elements other than copper can be used in alloys to reduce tarnishing, as well as casting porosity and firescale.
The first wave of gold shipments was made semi-weekly between January 11 and June 17, 1937, and overseen by the United States Post Office Department. [7] [8] The gold was transported from the New York Assay Office and the Philadelphia Mint onto trains using postal trucks and municipal police escorts. [8]
Gold is a wise primary choice if you're looking to grow and preserve your wealth. But "silver can be a smart addition if you want to complement that security with the potential for industrial ...
Argentium silver (patented in 1998) [1] is a brand of modern tarnish-resistant silver alloys, containing either 93.5%, 94% or 96% silver.Argentium alloys replace some of the copper in the traditional sterling silver (92.5% silver + 7.5% copper) with the metalloid germanium.
The earliest known, full-length opera composed by a Black American, “Morgiane,” will premiere this week in Washington, DC, Maryland and New York more than century after it was completed.