Here are 15 incredible colored-sand beaches around the world with sands that range from green to pink. ... Iron-rich black and red lava rocks led to the colorful red sand.

The color comes from a combination of black and red pulverized volcanic rock. It’s breathtaking on its own, but if that’s not enough, the beach is surrounded by steep red hills as far as the ...

Sand, after all, is just itty bitty pieces of broken down rock. That means beach sand can be pretty much any color rock is. Usually, that rock is mostly boring old quartz, with its generally pale ...

Pictured Rocks National Lakeshore known for its sandstone cliffs and quiet, sandy beaches, but the Lake Superior park offers a variety of activities for those planning to visit this summer. The ...

So Greber argues the high ratios of light-colored rocks discovered in his old sediments can only mean plate tectonics began early in our planet’s history. But 3.5 billion years is just a lower ...

Mars may appear red when viewed from Earth, but NASA's Curiosity rover has captured an up-close photo of the planet's mountainous landscape, with purple-colored rocks littered across the foreground.