Every grain of sand is a jewel waiting to be discovered. That's what Dr. Gary Greenberg found when he first turned his specially designed 3-D microscope on beach sand. Gemlike mineral grains, colorful coral fragments, and delicate microscopic shells revealed that sand comprises much more than little brown rocks. From the star-shaped sand of Japan to the volcanic green olivine of Hawaii to the marble grains of Greece, discover the diversity of sand on gorgeous, remote beaches around the globe. Learn about beach ecology and the fascinating origins of sand grains, including the singing sand dunes of the Sahara Desert. Marvel over Dr. Greenberg's amazing microphotography that magnifies sand grains up to 300 times and showcases the spectacular colors, shapes, and patterns of these tiny natural wonders. When we walk along a beach, we tread upon millions of years of biological and geological history. Join Dr. Greenberg as he explores the science and beauty of the sand grain. With this captivating volume, you will never look at a beach the same way again.