Did you know that every grain of sand is unique, and that it comes in a vast array of colors, shapes, textures and origins?
The elements found in sand contribute to its color. White sand, like that found in the Maldives, is typically composed of limestone from crushed coral and shells.
Darker sands, like that found on many islands of volcanic origin, typically contain obsidian or basalt deposited by flowing lava.
Through his fascinating microscopic photography (110 – 250 times magnification), Dr. Gary Greenberg of Hawaii gives us a glimpse into the complex world of sand.