Mine detail: Golden Pen Deposit

Previously called 'Golden Pen and Bovard 2? #M035733Golden Pen Mine and Gold Pen #M233181'

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Location

Lat / long:

38.77964, -118.38013

Resource(B)

Primary:	Potassium, Aluminum, Gold, Silver
Ore:	Alunite, Gold, Silver
Gangue:	Kaolin, Quartz, Sericite
Orebody form:	VEIN PINCH AND SWELL
Discovery year:	1911

Production

Operation type:	Unknown
Production size:	Medium
Development status:	Past Producer

Geology

Host type:	Rhyolite
Associated type:	Volcanic Rock (Aphanitic)
Structure:	Nw-Trending Fault That Offsets Ash-Flow Tuff Sequence.
Alteration processes:	Silicification, Kaolinization, Alunitization; Argillized.

References

MRDS	D002139
DEP	10009267
Reference	{Analytical Data:: SRC.REF: THOENEN, J. R., 1941 , USBM R. I. 3561 , P. 20}{Deposit:: ROSS, D. C., 1961 , GEOLOGY AND MINERAL DEPOSITS OF MINERAL COUNTY, NEVADA: NEV. BUREAU OF MINES BULL. 58 , P. 80 .}{Deposit:: SCHRADER, F. C., 1914 , ALUNITE AT BOVARD, NEV.: USGS BULL. 540 , P. 351 - 356 .}{Deposit:: THOENEN, J. R., 1941 , ALUNITE RESOURCES OF THE UNITED STATES: USBM R. I. 3561 , P. 19 - 20 .}{Deposit:: VANDERBERG, W. O., 1937 , RECONNAISSANCE OF MINING DISTRICTS IN MINERAL COUNTY NEV.: USBM I. C. 6941 , P. 57 - 58 .}{Deposit:: BLACK, J.W., 1920, UNPUBLISHED REPORT.}{Deposit:: 1908 DIREXPL VARIOUS WORKS FOR GOLD}{Deposit:: 1911 RECON F.C. SCHRADER: BULL. 540}{Deposit:: 1940 RECON J. R. THOENEN: USBM R. I. 3561}{Deposit:: 1974 RECON R. B. HALL: PROF. PAPER 1076A}{Production:: SCHRADER, F. C., 1914 , USGS BULL. 540 , P. 353 ; THOENEN, J. R., 1941 , USBM R. I. 3561 , P. 20. ROSS, D.C., 1961, TABLE 6.1.}
Reporter	Hall, Robert B., Starritt, Bruce C., Marcus, Susan (Jones, David A.)