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: ...

What is the rock cycle? There are three types of rocks — igneous, sedimentary, and metamorphic — that have formed over time in the Earth's different layers. A rock can begin as one type and can change ...

Rocks and minerals are closely related, but there are fundamental differences between the two. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

The Rock Cycle is Earth's great recycling process where igneous, metamorphic, and sedimentary rocks can all be derived from and form one another. Analogous to recycling a Coke can, where an old can ...

A little knowledge of rocks and minerals will help you identify everything from jewelry to fossils. While reading this article may not turn you into a geologist, it should give you the basic ...

DUNLAP, Tenn. | When Ed Lewis and some of his neighbors bought property on a scenic Tennessee mountain, they knew they didn’t own the mineral rights to the land, but they assumed a coal mining revival ...

If you draw with a pencil, you can tell how soft the graphite inside is. Pieces of graphite break off to leave the pencil mark. But can you imagine drawing with a diamond? Diamonds and graphite are ...

WYOMING, Mich. — What looks like just a rock to most people can hold much more meaning for collectors. The rock can be a story, a science lesson, or even a childhood memory. The Indian Mounds Rock and ...

This is due to the far higher density of material in rock wool insulation, when compared with glass wool especially. One cubic metre of rock wool can weigh as much as 200kg, whereas the same volume of ...