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how to identify gold ore from copper ore

How to Identify Gold Ore | eHow

How to Identify Gold Ore. Gold is a precious metal mined to create practical and ornamental pieces of work. Refined gold ore can be melted, poured and cast into ...

How to Identify Silver Ore | eHow

2014-5-15 · How to Identify Silver Ore. Silver is a precious metal located throughout the world in geological deposits. Colorado's state nickname is the "Silver State ...

Copper mining. From ore to copper. - …

On the previous page, we introduced the main stages in producing copper. Here we will look at the steps before any chemical reactions take place.

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