The Klerksdorp Spheres are mysterious objects discovered in South Africa in the 1930s. They are small, round, and composed of a hard, unknown material that has been compared to a type of granite. The spheres range in size from a few millimeters to several centimeters in
Klerksdorp spheres are small objects, often spherical to disc-shaped, that have been collected by miners and rockhounds from 3-billion-year-old pyrophyllite deposits mined by Wonderstone Ltd., near Ottosdal, South Africa. They have been cited by pseudoscientists and reporters in books, popular articles, and many web pages as inexplicable out-of-place artifacts that could only have been manufactured by intelligent beings. Geologists who have studied these objects have concluded that the objects are not manufactured, but are rather the result of natural processes.