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Burchard, Ernest F.

The production of fluorspar in 1913 with a note on cryolite. - Washington, D.C. Government Printing Office 1914 - pp .373-381 - Mineral Resources of the United States, calendar year 1913-Part II .

Impreso

La producción de fluorita en 1913 con una nota en la criolita.


Ingles

Subjects--Topical Terms:
MINERIA
FLUORITA
CRIOLITA

Subjects--Index Terms: PRODUCCION DE FLUORITA

Dewey Class. No.: 549.4