by 
Anonymous
ANSWERS: 2
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1.672 grams
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The modern Sacagawea gold dollar coin is 8.1 grams, but is obviously not really made of gold It's actually composed of 88.5% copper 6.0% zinc 3.5% manganese 2% nickel There were gold dollar coins in the 1800's that were about 1.672 grams and composed of 90% pure gold & 10% copper
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