Only available from antiquarian booksellers!

 extraLapis No. 39 Agates - born from volcanoes
 With their diverse and seemingly inexhaustible wealth of images and patterns, agates are perceived by many as aesthetically beautiful and mineralogically interesting. The "agate images" arose in a wondrous, still not fully understood, natural, random, and individual way; but initially hidden within the stone. Only through skilled craftsmanship do the agate's "inner worlds" become visible. With each new cut on the diamond saw, the chance arises to discover one of the most beautiful agate cross-sections!
 How do agates form? How do agates grow? How do their colorful and varied patterns develop? This monograph provides the answers to these and many other questions about the fascinating world of agates.
 100 pages with numerous color photos! Format: A4, paperback. 2010