Mine detail: Alexander

Previously called ''

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Location

Lat / long:

42.56265, -118.55269

Resource(M)

Primary:	Mercury
Ore:	Cinnabar
Gangue:	Chalcedony, Clay, Limonite

Production

Operation type:	Unknown
Production size:	Small
Development status:	Past Producer
Production years:	1941 - 1942

Geology

Host rock:	Pike Creek Formation
Host type:	Rhyolite
Associated type:	Basalt
Structure:	The Mineralization Lies In A Fault Zone Which Cuts Both Rhyolite Flows, Interbedded Tuffs, And A Younger Basaltic Dike
Alteration processes:	Silicification Of Breccia Is Most Intense In The Rhyolite

References

MRDS	M054971
DEP	10098452
Reference	{Deposit:: BROOKS, H. C., 1963, QUICKSILVER IN OREGON: OREGON DEPT. OF GEOLOGY AND MINERAL INDUSTRIES, BULL. 55, 223 P.}{Deposit:: BAILEY, E. H., USGS, PERSONAL FILES}{Deposit:: MERCURY IN OREGON, 1965, USBM IC 8252, TABLE 26, P. 329.}{Deposit:: WILLIAMS, H. AND COMPTON, R.R., 1953, QUICKSILVER DEPOSITS OF STEENS MOUNTAIN AND PUEBLU MOUNTAINS, SOUTHWESTERN OREGON: USGS BULL. 955-B, P. 19-77}
Reporter	Li, Zhiping (Peters, S.), Peterson, Jocelyn A., Ferns, Mark L. (Brooks, Howard C.), Gray, Jerry J.