The episodes revolve around minerals found deep within the earth, presenting information about them, their importance, how they are extracted, and their uses. Each episode focuses on a different...Read more mineral, such as gold, silver, phosphate, and copper.
The episodes revolve around minerals found deep within the earth, presenting information about them, their importance, how they are extracted, and their uses. Each episode focuses...Read more on a different mineral, such as gold, silver, phosphate, and copper.
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