Minerals & rocks

Minerals & rocks

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These electrons orbit with tremendous speed. If it were possible to see an atom, the electrons would appear to form a solid shell, so fast do they travel. An atom is a#39;held left Chalcopyrite Copper pyrites occurring as cube- and wedge-shapedanbsp;...

Title:Minerals & rocks
Author:Brian Simpson
Publisher: - 1974-01-01


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