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dc.contributor.authorJoseph, P.E.
dc.date.accessioned2018-09-29T02:14:05Z
dc.date.available2018-09-29T02:14:05Z
dc.date.issued1915
dc.identifier.urihttp://hdl.handle.net/10150/629807
dc.descriptionThere are four commercial sources of manganese in the United States, namely, manganese ores, manganiferous iron ores, manganiferous silver ores and manganiferous zinc residuum. The first three are ores; the fourth is a. residual product obtained after roasting zinc from an ore containing zinc, iron and manganese. Although manganese forms a part of over one hundred minerals, and is a relatively widespread element, practically all the manganese in the United States occurring in nature in sufficient quantity to be of commercial value comes from the oxides, mainly psilomelane and pyrolusite. Other oxides are mined, but much less frequently. The carbonate of manganese, rhodochrosite, is not found in sufficient quantities in this country to be of commercial value, but is mined in several foreign countries, as Spain and Wales. The silicate of manganese, rhodonite, contains too much silica to be used for its manganese content, but is sometimes mined for ornamental purposes on account of its beautiful pink color. Other minerals of manganese are too rare to be of commercial importance. 14 p.
dc.language.isoen
dc.publisherUniversity of Arizona Bureau of Mines
dc.relation.ispartofseriesBulletin No. 4
dc.relation.ispartofseriesMineral Technology Series No. 2
dc.relation.urlhttp://repository.azgs.az.gov/uri_gin/azgs/dlio/1134
dc.rightsPublic Domain: This material has been identified as being free of known restrictions under U.S. copyright law, including all related and neighboring rights.
dc.subjectArizona Geological Survey Bulletins
dc.subjectRecent
dc.subjectUnited States of America
dc.subjectmanganiferous zinc residuum
dc.subjectmanganiferous silver ores
dc.subjectmanganiferous iron ores
dc.subjectcommercial sources
dc.subjectminerals
dc.subjectmining
dc.subjectmanganese oxides
dc.subjectmanganese ores
dc.subjectmanganese
dc.titleManganese
csdgm.bounding.west-124.629
csdgm.bounding.east-67.6758
csdgm.bounding.north48.7656
csdgm.bounding.south24.7897
dc.description.collectioninformationDocuments in the AZGS Document Repository collection are made available by the Arizona Geological Survey (AZGS) and the University Libraries at the University of Arizona. For more information about items in this collection, please contact azgs-info@email.arizona.edu.
refterms.dateFOA2018-09-29T02:14:06Z


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