Excerpt from Minerals and Rocks: The Elements of Mineralogy and Lithology, for the Use of Students in General Geology On the other hand, the blowpipe tests are given fully in order that the student in the field may be able to recognize the chemical constituents of minerals with which he may not be familiar. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com 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.