With their skin stained white by clay and calcite sand, these elephants look like ghosts haunting the sun-drenched savannah. The unusual-looking animals were photographed by a watering hole in Namibia ...
They say that elephants never forget, but this one looks like a morning wash may have slipped its mind. Indeed, with its skin stained by clay and calcite sand it looks like it’s been painted with ...
Tucked away on a high shelf in the collections room of the Museum of Science is a startlingly unique rock specimen. It is white with long jutting crystal arms and made of a fragile mineral called ...
Craftsmen carry away a finished handicraft made of chrysanthemum stone in a workshop in Enshi, central China's Hubei Province, January 12, 2013. "Chrysanthemum stone", a type of mineral technically ...