Manganese Deposits of the United States with Sections on Foreign Deposits, Chemistry, and Uses (Classic Reprint)
Author: Edmund Cecil Harder
Publisher: Forgotten Books
Published: 2017-09-16
Total Pages: 308
ISBN-13: 9781528566117
DOWNLOAD EBOOK →Excerpt from Manganese Deposits of the United States With Sections on Foreign Deposits, Chemistry, and Uses Manganiferous zinc residuum is obtained only from zinc oxide works using New Jersey manganiferous zinc ores. The manganese ores proper and the manganiferous ores are SO closely associated that even in detail it is hard to separate them. In this report, therefore, they are discussed together under the same general headings. The manganese and manganiferous ore deposits throughout the United States are largely secondary concentration deposits. Such are the ores of eastern United States, except certain rhodonite de posits, and such also are the ores in northern Arkansas, in the Lake Superior region, at Leadville and in other silver districts, and in west ern California. A few deposits of hog manganese ore occur locally, and these also are secondary concentrations. The rhodonite and rhodochrosite in the unoxidized portions of the silver veins at Butte, however, are primary concentrations, as are also the manganese sili cate veins in central Texas and elsewhere. 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.
