Resultados de búsqueda - "Heavy minerals."

Recovering byproduct heavy minerals from sand and gravel, placer gold, and industrial mineral operations / por Gomes, J. M. (John M.)

Materias: “…Heavy minerals.…”

Recovery of byproduct heavy minerals from Oregon and Washington sand and gravel operations por Martinez, G. M. (George M)

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Recovery of byproduct heavy minerals from sand and gravel operations in Oregon and Washington / por Martinez, G. M. (George M.)

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Recovery of byproduct heavy minerals from sand and gravel operations in central and southern California / por Gomes, J. M. (John M.)

Materias: “…Heavy minerals By-products California.…”