LEXINGTON, Ky. (WKYT) - Coal has been a hallmark of the Kentucky mining industry for years, and for 25 of those years, Kentucky has celebrated coal as its state mineral. There is just one problem: ...
Test your rock & mineral smarts—are you a Rock Star? Think you know rocks and minerals? Take the Science Trek quiz! Test your smarts on gold, salt, Earth’s oldest rocks, gemstones on Mars, and the ...
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