Excerpt from The Heber R. Bishop Collection of Jade and Other Hard Stones<br><br>Jade is a name popularly given to several distinct kinds of ornamental stones of tough compact texture and of color vary ing from nearly white to a very dark green, which have been used from the earliest times in worked forms as weapons, uten sils, ornaments and decorative objects Scientifically, however, the term is restricted to the two minerals Jadeite and Nephrite, and to Chloromelanite, a variety of jadeite rich in iron, of dark color and high specific gravity.<br><br>About the Publisher<br><br>Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com<br><br>This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.