Treasures of the Earth From the author of Collecting Rocks, Gems and Minerals and one of the leading agate collectors in the world, comes this comprehensive gui

Jasper is a beautiful stone, and the variation is enough to make any collector excited. When you’re diving into the world of rock collecting, they’re a grea

Among the rarest and most prized minerals, agate is one of the most exquisite examples of nature's artwork. A striking rock that occurs in various shapes and si

Southern Africa is home to many important and interesting minerals, as well as a wide array of beautiful gemstones – including diamonds from South Africa, eme