The Mohs scale of mineral hardness characterizes the scratch resistance of various minerals through the ability of a harder material to scratch a softer material. It was created in 1812 by the German geologist and mineralogist Friedrich Mohs and is one of several definitions of hardness in materials science.
Geologic areas… Do you know anything about them? To be completely honest, I had never even heard the term until I discovered the virtually unknown Wheeler Geologic Area near Creede, which contains volcanic outcroppings from millions of years ago. Intrigued? Here’s what you need to know about this fascinating area: