Canadian 50 cents pieces
1911-1919 .925 silver
1920- 1967 .800 silver
collector sets such as, butterfly, hockey legends, nature series etc all .925 silver
you find if it is silver by using a magnet, magnets won't pick up a silver coin
Silver is too soft to be pure, old silver coins are usually very worn, the copper is added to make it stronger and last longer. the new collector coins can be .925 silver, because they are in protective cases. If you have a new one, keep it in the case, older ones in great shape should be placed in a case asap. and never never never clean a silver coin, it takes away from the value or wears away some of the silver.
The outside is an alloy of 75% copper and 25% nickel, with pure copper in the center. Including the core, the coins are about 91.7% copper and 8.3% nickel.
Silver carbonate is a pure compound because it is a chemical substance made up of silver, carbon, and oxygen in a fixed ratio (Ag2CO3). Each molecule of silver carbonate contains the same elements in the same proportion, giving it a definite and consistent composition, which is a characteristic of pure compounds.
Pure silver is homogeneous.It has no allotropic phase.
Silver is typically found in nature in the form of compounds, such as silver sulfide or silver chloride. However, it can also be found in its pure elemental form, especially when it occurs as native silver in deposits of ore.
Pure elements are substances made up of only one type of atom. Among the options given, Ag (silver) and Al (aluminum) are pure elements. MgCl2 and NaCl are compounds made up of multiple elements bonded together, while C3H8 is a hydrocarbon molecule made up of carbon and hydrogen atoms.
The US has never made pure silver half dollars, they have made pure silver Silver Eagle dollars starting in the 1980s, but those coins are intended for bullion value and not for circulation. All US coins containing silver contain 90% silver at the most because silver is far too weak of a metal to make coins with and needs to be alloyed with a base metal to withstand the wear and tear of circulation.
No. The US has never made a coin with pure silver. The closest to pure silver would be American silver Eagles. These coins are silver bullion coins. They are made of 99.93% silver and .07% copper.
Australian 2 cent coins were issued from 1966 until 1984 and were made from 97% copper, 2.5% zinc and 0.5% nickel. No general circulation Australian 2 cent coin contained any silver. If you have a silver Australian 2 cent coin, it is because somebody plated it. In 2006, the Royal Australian Mint (RAM) issued a pure gold and a pure silver set of coins, including the 2 cent coin, to commemorate the 40th Anniversary of the Decimal Currency in Australia. The coins were never issued individually.
American circulation coins were never made of pure silver. They contained at least 10% copper for hardness. 1971 dollar coins for circulation contained NO silver - they were made of copper and nickel. Collectors' coins were struck in 40% silver.
"Pure" silver coins were never minted in Britain. The closest to pure silver used in coins is sterling silver which is 92.5% silver usually alloyed with copper. Sterling silver coins were last issued for general circulation in 1919 and 1920, beyond 1919/1920 the coins were debased to 50% silver. The Royal Mint still produces Proof and bullion coins (not for general circulation) which are made from sterling silver, but this is reflected in the price you pay for them.
Dollar coins made in 1935 and before contain .77344oz of pure silver.
http://wiki.answers.com/How_can_you_tell_a_coin_is_not_pure_silverCirculationUS coins were never made of pure silver. Up through 1964, dimes, quarters, and halves were made of 90% silver with 10% copper added for hardness.In any case it's essentially impossible to refine silver to 100% purity. Even ultra-pure silver bullion "coins" have traces of other metals in them.
Coins are not usually silver these days. Since the 1960s they have been made of copper and nickel. Silver coins from before 1965 in the US were 90% silver. Foreign countries have used anything from 40% to 92.5% silver in their coins, but to my knowledge, no one has used pure (100%) silver in currency.
Silver dollar coins (1794-1935) were never made of pure silver. It's too soft and the coins would wear out very quickly. They (and most other silver US coins) were made of an alloy of 90% silver and 10% copper. Circulating US dollar coins were made of copper-nickel from 1971 to 1999. The composition was changed to gold-toned brass in 2000. Modern "eagle" coins with an artificial $1 denomination are made of 99.9% pure silver, but these coins aren't intended for spending.
Nothing is 100% PURE silver but like most silver coins it is 99.999% silver
No. No circulating coinage was ever PURE silver, but generally a blend of silver and copper. That said, coins of the Korean won are currently made of aluminum or a nickel/copper blend.
Most coins intended for circulation are not pure silver. While recently there are coins such as the American Silver Eagle which are pure silver, silver has not been in any American circulating coin since 1970 when the 40% silver alloy was removed from the half dollar, pre-1964 Quarters, Dimes and Half-Dollars contain 90% silver with 10% copper. Silver is a very soft metal and would not hold up to daily wear and tear of everyday transactions so it needs to be mixed with a harder metal for it to be resistant to wear and tear.