This coin appears to be minted on a delaminated planchet. You should search for a coin error dealer on the internet. If it truly is SILVER (if it has a S mint mark), instead of the normal nickel finish (P or D mint marks), it is probably worth quite a lot of money. The only SILVER state quarters are Proof, and they go thru many inspections before leaving the Mint.
Yes. What you have is called a lamination error. The outer cupronickel* cladding did not bond properly to the copper core. It could have fallen apart at any time, either before the coin was struck or after leaving the mint. Either way it would retail for about $10.
(*) The outer layers of modern coins are an alloy of nickel and copper. Silver was removed from circulation coins in 1965.
Sterling silver is not a solution, it is an alloyof silver containing 92.5% by weight of silver and 7.5% by weight of other metals, usually copper. The sterling silver standard has a minimum millesimal fineness of 925.
92.5% of silver more than 7.5 % of copper and another metal
Silver is more expensive than copper and aluminum and less abundant so it is more economically feasible to use other metals.
Some silver alloys may include rist watches, neclaces , and any other silver jewlery.
It's because copper is the best conductor of electricity, other than silver which is slightly better but too expensive.
Silver
With a date of 1979 the coin has no silver it's a clad coin made of copper-nickel alloy bonded to a core of copper but if the coin is missing on full side it may have significant value. Take it to a dealer for and assessment.
Copper and Silver are both elements. However the copper and silver objects you find in everyday life are unlikly to be 100% pure copper or silver. These objects will be made with copper or silver alloyed to other metals to improve its properties or decrease its cost.
Sterling silver is defined as no less than 92.5% pure silver. This means that up to 7.5% can be other material- this other is usually copper.
Quarters and most other silver US coins contained 10% copper; the last coins made of that alloy were dated 1964. The US has never made solid silver circulating coins. Pure silver is far too soft for use in coins, so it was always alloyed with copper for hardness.
Sterling silver is not a solution, it is an alloyof silver containing 92.5% by weight of silver and 7.5% by weight of other metals, usually copper. The sterling silver standard has a minimum millesimal fineness of 925.
It could be from a Silver Proof Set - in which case it is made of Silver.
No, only silver plated rings and other alloys coating copper or copper and silver alloys.
epc on silver simply means electroplated copper , or in other terms you have an item that is made of silver over copper.
Sterling silver is 92.5% silver. The rest is other metals, usually copper.
It refers to the purity of silver. In the United States, when some coins were still made of silver, they were 90% silver with 10% copper.
Sterling silver is 92.5% silver with 7.5% other metals, usually copper.