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Magnesium compounds (other than magnesite)
Public services for the identification of mineral specimens
Mining laws of Switzerland
Sodium sulfate
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Published Year
1930-1939 (4)
Subject
Magnesium compounds (1)
Minerals--Identification--Directories (1)
Mines and mineral resources (1)
Mining law--Switzerland (1)
Sodium sulfate (1)
Author
Tyler, Paul McIntosh, (4) *
