Browse TRAIL Inventories

Experimental treatment of barite ores from Montgomery County, Ark. and Morgan County, Mo.

Mineral-dressing study of manganese ore, Cason Mine, Batesville, Ark.

Laboratory recovery of manganese carbonate from the Martin mine, Independence County, Ark.

A mineral-dressing study of manganese deposits of West-central Arkansas

Experiments in concentrating lead sulfide slime


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