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Excerpt from Mineral Resource Research, 1946-1947, by the Illinois State Geological SurveySpecial high-powered microscopes reveal details of the structure of clays and enable Survey scientists to predict their behavior and to discover new uses for them.Illinois quarries produce large tonnages of limestone for agricultural use, road building, rail road ballast, and many

Title : Mineral Resource Research, 1946-1947, by the Illinois State Geological Survey (Classic Reprint)
Author : M.M. Leighton
Language : en
Rating :
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Type : PDF, ePub, Kindle
Uploaded : Apr 11, 2021

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