Mine detail: Josefina Tungsten Mine

Previously called 'JosefinaSan Pablo Mine. Veins: PrimeraRicaBlancaSurMarchant'

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Location

Lat / long:

-33.48079, -69.48281

Resource(M)

Primary:	Tungsten
Ore:	Marcasite, Molybdenite, Sphalerite, Wolframite
Gangue:	Fluorite, Muscovite, Quartz
Discovery year:	1937

Production

Operation type:	Unknown
Production size:	Small
Development status:	Past Producer
First production started:	1938

Geology

Host type:	Schist
Structure:	Pre-Mineral Fault Striking N, Dip 45w And Post-Mineral Fault Striking N, Dip 45w Divides Area In 3 Blocks. Eastern Block Contains Most Veins (East Of Pre-Mineral Fault); Minor Faults Offset Veins Up To 50 M Most N25w, 45 E Or W
Alteration processes:	Premineral Fault Contains Quartz-Chlorite Sulfide

References

MRDS	TC34302
DEP	10061424
Reference	{Deposit:: SMITH, W.C., AND GONZALEZ, E.M., 1947, TUNGSTEN INVESTIGATIONS IN THE REPUBLIC OF ARGENTINA, 1942-1943: U.S. GEOLOGICAL SURVEY BULLETIN 954-A, P. 12-26.}{Deposit:: ANGELELLI, V., 1984, YACIMIENTOS METALIFEROUS DE LA REPUBLICA ARGENTINA: PROVINCIA DE BUENOS AIRES COMISION DE INVESTIGACIONES CIENTIFICAS, LA PLATA, V. 2, P. 653-654.}{Other Database:: CIMRI}{Production:: SMITH AND GONZALEZ (1947)}
Reporter	Page, Norman J.