Public services for the identification of mineral specimens

Author: Tyler, Paul McIntosh,
Year: 1932
Document Type: MAIN
Issuing Agency: U.S. Dept. of the Interior, Bureau of Mines,
Series: Information circular ;
Report Number: 6597
Subject: Minerals--Identification--Directories
Link: https://hdl.handle.net/2027/mdp.39015095085638

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