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American gold coins minted from approximately 1840 to 1933 contain 90% gold and 10% copper. American Gold Eagles minted from 1986 contain 91.67% gold, 3% silver, 5.33% copper.

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βˆ™ 15y ago
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βˆ™ 13y ago

You can get this info from the US Mints web site.

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βˆ™ 11y ago

chalcopyrite,gold,and silver

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Q: Which ores contain metals used in making coins?
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Related questions

Are ores and rocks minerals or metals?

Ores are mineral deposits that contain metals in concentrated form. Rocks can also contain minerals, but not all rocks are considered to be minerals. Metals are elements that are typically extracted from ores through mining and processing.


What are rocks called that contain metals that can be mined for profit?

They are called ores.


What is the difference between ores and native metals?

Ores are naturally occurring minerals that contain metal compounds that must be extracted, while native metals are metals that exist in their pure form in nature. Ores require processing to extract the metal, while native metals can be found in their metallic form without the need for extraction.


What are minerals that contain metallic elements called?

Minerals that contain metallic elements are called ores. These ores are valuable natural resources that can be mined for the extraction of the metallic elements they contain, which are often used in various industries such as manufacturing and construction.


Can all rocks be referred to as ores?

No, not all rocks can be referred to as ores. Ores are rocks or minerals that contain sufficient quantity of a sought-after material, like metals, that can be extracted and processed for use. So, while all ores are rocks, not all rocks are considered ores.


How Minerals that can be mined at a profit are called ores true or false?

True. Ores are minerals that contain valuable metals or elements that can be extracted economically through mining and processing.


What are the important ores?

Their importance is that these ores can be extracted into metals .


Are all metals found in ores?

No, not all metals are found in ores. Some metals are found in their pure form, such as gold and copper. However, most metals are typically found in ores, which are rocks or minerals that contain a high concentration of the metal.


What ores do diamond contain?

Diamonds are formed from carbon and contain no ores.


What are ores . name any 4common ores?

Ores are naturally occurring minerals that contain valuable elements or metals. Four common ores include iron ore (hematite), copper ore (chalcopyrite), aluminum ore (bauxite), and gold ore (native gold).


Rocks that contain a metal oxide are called ores true or false?

True. Rocks that contain a high concentration of metal oxides are called ores. These ores are mined and processed to extract the metal from the ore.


Do metals only come fron ores?

Yes, metals do only come from ores and pure metals also are found in the Earth's crust.