Abstract
"The more or less impure iron bearing mineral occurs mixed with a very tenacious clay, in which are also found chert, cretaceous quartz pebbles, pockets of sand, masses of pebbles and sand cemented by hydrous iron oxide, (which in some cases partly replaces the silica) and several varieties of fossils, such as crinoids etc. The impurities mentioned are often an integral part of the ore particles, and are present in varying quantities thruout [sic] the deposit. But, besides the foreign matter which the eye can discern, the apparently pure mineral contains a varying percentage of silica and alumina, (as well as traces of other elements) which no mechanical process could possible eliminate"--The Ore, page 3-4.
Advisor(s)
Mann, Horace T.
Department(s)
Mining Engineering
Degree Name
Professional Degree in Mining Engineering
Publisher
Missouri School of Mines and Metallurgy
Publication Date
1917
Pagination
54 pages
Geographic Coverage
Iowa
Rights
© 1917 Ernest Wander, All rights reserved.
Document Type
Thesis - Open Access
File Type
text
Language
English
Subject Headings
Iron ores -- Iowa
Iron ores -- Purification
Ore-dressing
Thesis Number
T 401
Print OCLC #
5950695
Electronic OCLC #
320778386
Link to Catalog Record
http://merlin.lib.umsystem.edu/record=b2609579~S5Recommended Citation
Wander, Ernest, "The Goltra process of concentrating iron ores as developed at Waukon, Iowa" (1917). Professional Degree Theses. 141.
https://scholarsmine.mst.edu/professional_theses/141
Comments
Illustrated by author.