Washington · Okanogan County
Past Producer

Last Chance Mine

Okanogan County, Washington, United States
SilverLeadCopperZinc
⌖ Show on mapUSGS source ↗
Description

John Clumen And James Milliken

Commodities
PrimarySilver, Lead, Copper
SecondaryZinc
Commodity typeM
Deposit
Deposit typeVein
Deposit sizeS
WorkingsUnderground
Orebody formSHOOTS
Ore controlQuartz Vein In Granodiorite And Mica Schist In And About Contact Of Both.
Materials
Ore mineralsChalcopyrite, Galena, Pyrite, Sphalerite
GangueQuartz
Geology
Host rockDiorite,Mica Schist · Salmon Creek
Associated rockDiorite · Loup Loup
StructureMica Schist - Granodiorite Contact Trends Generally Nw (Same As Regional Trend Of The Metamorphic Rocks In The Area., Parts Of The Vein Have Been Displaced 6-10 Ft By Transverse Faults; The Nw Segments Of The Vein Are Generally Displaced To The Sw.
AlterationWith 6 To 10' Displacement
Economic & production
Development statusPast Producer
Discovery year1886
Identification
Deposit ID10041534
MRDS IDM056614
Alternate namesRuby Lode Claim
RegionNA
Data scoreB
Coordinates48.48844, -119.73506
References
WASH. DMG BULL. 37, PART II, P. 305.WASH. DMG IC 49, P. 8, 17-18WASH. GEOL. SUR. BULL 23, P. 189-260WASH. DMG BULL 37, P. 305