Mine detail: Silver Hill Mine Group

Previously called 'Black BenManilaHall Mine GroupAnanais'

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Location

Lat / long:

31.95152, -109.22564

Resource(M)

Primary:	Copper, Lead, Silver, Gold
Secondary:	Tungsten
Ore:	Scheelite
Orebody form:	IRREGULAR

Production

Operation type:	Unknown
Production size:	Small
Development status:	Past Producer
First production started:	1895
Last production ended:	1953

Geology

Host rock:	Naco Group, Earp And Horquilla Formations
Host type:	Limestone
Associated type:	Quartz Monzonite
Structure:	District Mineralization Associated With Major Tertiary Volcanic And Intrusive Event, E-W Trending Thrust Fault Mapped .25 Mile N Of Mine. A Fault Striking N49w, Dip 74sw Runs Through Mine Workings. Quartz Monzonite Porphyry Dike Strikes Generally Nw
Alteration processes:	Pyrometamorphosed Limestone

References

MRDS	M241037
DEP	10104055
Reference	{Deposit:: KEITH, S B, 1973, ARIZONA BUREAU OF MINES BULLETIN 187, P 54.}{Deposit:: COOPER, 1959, USGS MAP MF-213}{Deposit:: USBM RI 5650, 1960, P. 6-10}{Production:: KEITH, 1973, ARIZ BUR OF MINES BULL 187.}
Reporter	Zigler, Jan L., Gest, Don E.