This is a unique geological phenomenon known as Danxia landform. These phenomena can be observed in several places in China . This example is located in Zhangye, Province of Gansu . The color is the result of an accumulation for millions of years of red sandstone and other rocks.
Viewed at a magnification of over 250 times real life, tiny grains of sand are shown to be delicate, colourful structures as unique as snowflakes. When seen well beyond the limits of human eyesight, the miniature particles are exposed as fragments of crystals, spiral fragments of shells and crumbs of volcanic rock.
Professor Gary Greenberg who has a PhD in biomedical research from University College London said: 'It is incredible to think when you are walking on the beach you are standing on these tiny treasures." He searches through thousands of tiny rocks with acupuncture needles to find and arrange the most perfect specimens, then uses a painstaking technique to create his images. He has spent five years searching the globe for remarkable sand grains like these to photograph.