structure, tectonics

How do you make a green rock?

Typically when we think of rocks, we don’t often picture them as having vibrant hues. Minerals themselves often come in a spectacular array of colors, but rocks overall tend to have more muted tones and earthy colors. These rocks (pictured above) from the Buckskin Mountains in western Arizona stand out in stark contrast to the… Continue reading How do you make a green rock?