Granite colors range the spectrum from white to black to pink, but what makes a single rock type so variable? Here we will discover what makes each granite a different color, what that tells us ...

The best time to find agates in Michigan is after a storm. Popular Michigan agate hunting locations include Whitefish Point, ...

Light-colored granitic rocks stuck out like a sore thumb ... volcanic rock is typically very fine-grained - you can’t make out the different minerals by eye. Granite is primarily composed ...

Minerals are typically formed when molten rock, or magma ... of cryptocrystalline quartz gems and feature a number of different colors. Geologists can tell a chalcedony from the arrangement ...

Studying the composition of these different rock layers can help scientists learn more about Mars' past. The images have a white-balanced color adjustment that resembles how rocks and sand would ...

Studying the composition of these different rock layers can help scientists learn more about Mars' past. The images have a white-balanced color adjustment that resembles how rocks and sand would ...

Studying the composition of these different rock layers can help scientists learn more about Mars' past. The images have a white-balanced color adjustment that resembles how rocks and sand would ...