Mine detail: La Fortuna Mine

Previously called 'Fortuna'

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Location

Lat / long:

32.55176, -114.3305

Resource(M)

Primary:	Gold, Silver
Secondary:	Copper, Iron
Ore:	Gold, Hematite, Limonite, Malachite, Silver
Gangue:	Garnet, Quartz, Specularite
Orebody form:	LINEAR
Discovery year:	1895

Production

Operation type:	Unknown
Production size:	Small
Development status:	Past Producer
First production started:	1896
Last production ended:	1941

Geology

Host type:	Schist,Gneiss
Associated type:	Amphibolite,Pegmatite,Granite
Tectonic:	Basin And Range
Alteration processes:	The Wall-Rock Alteration Accompanying La Fortuna Vein Consists Mainly Of Carbonatization And Silicification. Such Alteration Together With The Structure, Texture, And Mineralogy Of The Vein, Point To Deposition In The Lower Portion Of The Mesothermal Zone.

References

MRDS	M002626
DEP	10027250
Reference	{Deposit:: ELSING, M.J., HEINEMAN, R.E.S., 1936, ARIZONA METAL PRODUCTION: ARIZ. B.M. BULLETIN 140, P. 104.}{Deposit:: WILSON, E.D., 1933, GEOLOGY AND MINERAL DEPOSITS OF SOUTHERN YUMA COUNTY, ARIZONA: ARIZ. B.M. BULLETIN 134 P. 189}{Deposit:: WILSON, E.D., CUNNINGHAM, J.B., BUTLER, G.M., 1934, ARIZONA LODE GOLD MINES AND GOLD MINING: ARIZ. B.M. BULLETIN 137, P. 158.}{Deposit:: SAWYER, M.B., GURMENDI, A.C., DALEY, M.R., AND HOWELL, S.B., 1992, PRINCIPAL DEPOSITS OF STRATEGIC AND CRITICAL MINERALS IN ARIZONA: U.S. BUREAU OF MINES SPECIAL PUBLICATION, 334 P.}{Other Database:: CIMRI}{Production:: A.B.M. BULLETIN 134, P. 198; A.B.M. BULLETIN 140, P. 104. (13) KEITH, S.B., 1979}
Reporter	Gere, W., Hall, R. K. (Creasey, S. C.), Orris, Greta J.