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m-25
Table 6. General Mineralogy and Minability of Ore Zones of
Presently Producing Companies in the Carlsbad Potash District
Marker Bed General Producing
Ore Zone Near Base Mineralogy Company Minability
Tenth MB 120 Sylvite, New Mexico Second best in the
sylvinite Potasb, lMCF district; high-clay
content (6-7%)
Eighth Union Sylvite Moderate reserves;
important in
future; high clay
Seventh Sylvite, Mississippi Moderate ore reserves;
sylvinite Chemical moderate clay (3-4 %)
Fifth MB 123 Sylvite, lMCF Moderate ore reserves;
langbeinite trace clay (I %)
Fourth Langbeinite, lMCF, Principal source of
sylvite Western langbeinite; mixed
Ag-Minerals ore
Third Sylvite, Horizon. Ranks 3rd in
sylvinite Eddy Potash production of
sylvite
First MB 126 Sylvite, Eddy Was the major
sylvinite Potash sylvite-producing zone,
now nearly mined oul
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