Mine detail: Gray Butte

Previously called ''

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Location

Lat / long:

44.43733, -121.11695

Resource(M)

Primary:	Mercury
Ore:	Cinnabar
Discovery year:	1942

Production

Operation type:	Unknown
Production size:	None
Development status:	Occurrence

Geology

Host rock:	John Day Formation;John Day Formation
Host type:	Volcanic Rock (Aphanitic),Tuff
Alteration processes:	Silicification

References

MRDS	M055993
DEP	10041073
Reference	{Deposit:: BROOKS, H. C., 1963, QUICKSILVER IN OREGON: OREGON DEPT. OF GEOLOGY AND MINERAL INDUSTRIES, BULL. 55, 223 P.}{Deposit:: MERCURY IN OREGON, 1965, USBM IC 8252}{Deposit:: FREDERICK, F., 1945, STATE OF OREGON MAP SHOWING LOCATION OF QUICKSILVER DEPOSITS: OREGON DEPT. OF GEOL. AND MIN. INDUSTRIES, SCALE 1:1,000,000}
Reporter	Peterson, Jocelyn A., Gray, Jerry J.