Mine detail: Star Pointer Gold Mine

Previously called 'East Robinson ProjectNorth Star PointerZackRuthPilot KnobJD HillTwin PeaksWest Liberty'

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Location

Lat / long:

39.25384, -114.97887

Resource(B)

Primary:	Gold, Silver
Secondary:	Copper
Tertiary:	Lead, Zinc, Arsenic, Tellurium, Antimony, Thallium, Fluorine-Fluorite
Ore:	Gold, Silica, Limonite
Orebody form:	tablar
Discovery year:	1910

Production

Operation type:	Surface-Underground
Deposit type:	distal disseminated gold-silver
Production size:	Small
Development status:	Producer
First production started:	1985
Last production ended:	1987

Geology

Host rock:	Rib Hill Sandstone, Riepe Spring Limestone
Host type:	Sandstone,Limestone
Associated type:	Quartz Monzonite,Porphyry
Structure:	Numerous faults cut the rocks in the mine area., In mid-Cretaceous time, Paleozoic miogeosynclinal sedimentary rocks were deformed into an overturned E-W-trending anticline whose upper limb was thrust to the southwest. Basin-and-Range normal faulting successively down-dropped the upper portions of the system to the east.
Alteration processes:	The main alteration is decalcification and silicification of limestone, ad rocks are also localyaffected by advanced argillic alteration.

References

MRDS	W700597
DEP	10310382
Reference	{Deposit:: Mining Magazine, January 1989, p. 44.}{Deposit:: Gans, P. B., Seedorff, E., Fahey, P. L., Hasler, R. W., Maher, D. J., Jeanne, R. A., and Shaver, S. A., 2001, Rapid Eocene extension in the Robinson district, White Pine County, Nevada: Geology, v. 29, p. 475-478.}{Deposit:: Gans, P. B., and Seedorff, E., eds., 2000, Cenozoic tectono-magmatic evolution of White Pine County, Nevada: Core complexes, Eocene-Oligocene volcanic centers, episodic extension and shortening, and disseminated gold deposits: Geological Society of Nevada Symposium 2000 Field Trip Guidebook No. 11, 166 p.}{Deposit:: Seedorff, E., 2000b, Summary of the gold-silver deposits of the Robinson district, with descriptions of the Northwest Ruth, J. D. Hill, and Star Pointer deposits, in Gans, P. B., and Seedorff, E., eds., Cenozoic tectono-magmatic evolution of White Pine County, Nevada: Core complexes, Eocene-Oligocene volcanic centers, episodic extension and shortening, and disseminated gold deposits: Geological Society of Nevada Symposium 2000 Field Trip Guidebook No. 11, p. 141-166.NBMG, 1988, NBMG MI-1987}{Deposit:: Smith, M.R., Wilson, W.R., Benham, J.A., Pescio, C.A., and Valenti, P., 1988, The Star Pointer gold deposit, Robinson Mining District, White Pine County, Nevada, in Schafer, R.W., and Cooper, J.J., and Vikre, P.G., eds., Bulk mineable precious metal deposit of the Western United States (Symposium Proceedings, Sparks, Nevada, April 6-8, 1987): Geological Society of Nevada, Reno, Nevada, p. 221-232.}{Deposit:: NBMG Mining District File 327, numerous press clippings}{Deposit:: Bonham, H.F., 1986, NBMG Map 91}{Deposit:: Wilson, W.R., 1978, in Shawe, D.R., ed., NBMG Rept. 32, p.55-61.}{Deposit:: Bonham, 1988}{Deposit:: Long, K.R., DeYoung, J.H., Jr., and Ludington, S.D., 1998, Database of significant deposits of gold, silver, copper, lead, and zinc in the United States; Part A, Database description and analysis; part B, Digital database: U.S. Geological Survey Open-File Report 98-206, 33 p., one 3.5 inch diskette.}
Reporter	La Pointe, D.D. (Tingley, J.V.), Li, Zhiping (Moyer, Lorre A.), LaPointe, D.D. , Schruben, Paul G.