Mine detail: Amity Mine

Previously called 'Johnson CreekHomestake MercuryInternational MercuryNew AmityPaulsen and Saylor'

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Location

Lat / long:

44.34956, -120.32193

Resource(M)

Primary:	Mercury
Ore:	Cinnabar, Limonite, Marcasite, Pyrite
Gangue:	Calcite, Chalcedony, Clay, Gilsonite
Orebody form:	IRREGULAR, LENS LIKE, FRACTURE FILLINGS
Discovery year:	1929

Production

Operation type:	Unknown
Production size:	Small
Development status:	Past Producer
First production started:	1930

Geology

Host rock:	Clarno Formation;Clarno Formation;Clarno Formation
Host type:	Volcanic Breccia (Agglomerate),Andesite
Associated type:	Basalt
Structure:	Johnson Creek Fault Zone - Ene - Trending, Steeply Dipping, Northerly-Trending Faults That Intersect Johnson Creek Fault Zone Are Locally Mineralized.
Alteration processes:	Wall Rock Bleached Along Both Walls Of Fault. Kaolinization

References

MRDS	M060843
DEP	10042805
Reference	{Deposit:: BROOKS, H.C., 1963, QUICKSILVER IN OREGON: OREGON DEPT. GEOL. AND MIN. IND. BULL. 55, P. 146-148}{Deposit:: SWINNEY, C.M., WATERS, A.C., MILLER, G.P., 1968, RECONNAISANCE GEOLOGIC MAP OF THE LOOKOUT MOUNTAIN QUADRANGLE, CROOK AND WHEELER COUNTIES OREGON: USGS MISC. GEOL. INV. MAP I-543}{Deposit:: GILLULY, JAMES, REED, J.C., AND PARK, C.F. JR., 1933, SOME MINING DISTRICTS OF EASTERN OREGON: USGS BULL. 846-A, P. 120}{Deposit:: MERCURY IN OREGON, 1965 , USBM IC 8252 .}{Deposit:: 1929 GILLULY, J., BULL. 846-}{Production:: BROOKS, H.C., 1963, P. 146}
Reporter	Puffett, Willard P., Ferns, Mark L. (Brooks, Howard C.), Gray, Jerry J.