Mine detail: Juno -Echo Mine

Previously called 'Western Molybdenum'

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Location

Lat / long:

48.29096, -117.68471

Resource(M)

Primary:	Copper, Molybdenum
Secondary:	Silver, Tungsten
Tertiary:	Gold
Ore:	Chalcopyrite, Molybdenite, Scheelite
Gangue:	Pyrite
Orebody form:	LENS

Production

Operation type:	Unknown
Deposit type:	Contact Metamorphic
Production size:	Yes
Development status:	Past Producer
First production started:	1916

Geology

Host rock:	Fine Grained White To Green Marble
Host type:	Marble
Associated rock:	Flowery Trail Granodiorite, Monzonite
Associated type:	Diorite
Alteration processes:	Calc-Silicates In Marble.

References

MRDS	M060109
DEP	10042353
Reference	{Deposit:: PURDY, C.P. JR. 1954, MOLYBDENUM OCCURRENCES OF WASHINGTON: WASHINGTON DIV. MINES AND GEOLOGY RPT. INV. NO. 18, P. 74-86}{Deposit:: CLARK, L.D. AND MILLER, F.K., 1968, GEOLOGY OF THE CHEWELAH MOUNTAIN QUADRANGLE, STEVENS COUNTY, WASHINGTON: WASHINGTON DIV. OF MINES AND GEOLOGY, GEOLOGIC MAP GM-5}{Deposit:: WEAVER, C.E. 1920, THE MINERAL RESOURCES OF STEVENS COUNTY: WASHINGTON GEOLOGICAL SURVEY BULL. 20, P. 153-154}{Deposit:: HUNTTING, M.T. 1956, INVENTORY OF WASHINGTON MINERALS PART II METALLIC MINERALS: WASHINGTON DIV. MINES AND GEOLOGY BULL. 37, VOL. 1, P. 98}{Deposit:: 1915 DIREXPL JUNO-ECHO MINING AND MILLING CO.}{Deposit:: 1918 DIREXPL JUNO-ECHO COPPER COMPANY}{Deposit:: 1938 DIREXPL WESTERN MOLYBDENUM COPORATION}{Deposit:: 1942 GEOLMAP J. R. COOPER, UNPUBLISHED REPORT.}{Production:: HUNTTING, M.T. 1956, WASH. DIV. MINES GEOLOGY BULL. 37}
Reporter	Puffett, Willard P.