Mineral Propertie s
It is often difficult to identify a mineral simply by looking at it, but each mineral has a set of distinctive characteristics that are eas...
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Minerals and Rocks
Minerals are the building blocks of the earth . A mineral is a combination of elements that forms an inorganic, naturally occurring sol...
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Chemical Composition
The average chemical composition of the earth's crust has been determined from tens of thousands of chemical analyses of rocks an dm...
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