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Start Over You searched for: Author Mines Bureau Remove constraint Author: Mines Bureau Publish Year Decade 1960 - 1969 Remove constraint Publish Year Decade: 1960 - 1969

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873. Asbestos; by Timothy C.

874. Vermiculite; by Timothy C.

877. Aluminum; by John W. Stamper.

878. Antimony; by Donald E. Moulds.

879. Barite; by Donald E. Eilertsen.

880. Bauxite; by Lloyd R. Williams.