Commodities
PrimaryChromium
TertiaryPalladium, Iridium, Ruthenium, Rhodium, Nickel, Platinum
Commodity typeM
Deposit
Model15: Podiform chromite (minor)
Deposit sizeS
WorkingsSurface/Underground
Orebody formSPOTTED ORE WITH SOME BANDING, MASSIVE
Ore controlMagmatic Segregation
Geology
Host rockDunite · Canyon Mountain Complex
Associated rockPeridotite · Canyon Mountain Complex
StructureRocks Highly Jointed Trending E, Dip 48s
Tectonic settingOchoco-Blue Mountains
AlterationDunite Partially Serpentinized, Peridotite More Completely Serpentinized
Economic & production
Development statusPast Producer
First production1918
Last production1918
Discovery year1918
Identification
Deposit ID10033096
MRDS IDM015020
Alternate namesTip Top Mine, Ray Springs Mine
RegionNA
Data scoreB
Coordinates44.33957, -118.77022
References
ALLEN, J.E., 1941, CHROMITE DEPOSITS OF OREGON (REVISED ED.): OREGON DEPARTMENT OF GEOLOGY AND MINERAL INDUSTRIES BULLETIN 9, P. 64.OREGON DEPARTMENT OF GEOLOGY AND MINERAL INDUSTRIES, 1941, OREGON METAL MINES HANDBOOK, NORTHEASTERN OREGON--WEST HALF: OREGON DEPARTMENT OF GEOLOGY AND MINERAL INDUSTRIES BULLETIN 14-B, P. 35-36.WESTGATE, L.G., 1921, DEPOSITS OF CHROMITE IN EASTERN OREGON, IN CONTRIBUTIONS TO ECONOMIC GEOLOGY 1920: U.S. GEOLOGICAL SURVEY BULLETIN 725-A, P. 42.STOTELMEYER, R.B., 1977, ECONOMIC APPRAISAL OF THE STRAWBERRY MOUNTAIN WILDERNESS AND ADJACENT AREAS, GRANT COUNTY, OREGON, IN MINERAL RESOURCES OF THE STRAWBERRY MOUNTAIN WILDERNESS AND ADJACENT AREAS, GRANT COUNTY, OREGON: U.S. GEOLOGICAL SURVEY OPEN-FILE REPORT 77-420, P. 88-90.CARLSON, C.A., AND OTHERS, 1985, ANALYSES FOR PLATINUM-GROUP ELEMENTS IN SAMPLES FROM PODIFORM CHROMITE DEPOSITS, CALIFORNIA AND OREGON: U.S. GEOLOGICAL SURVEY OPEN-FILE REPORT 85-442, 14 P.THAYER, T.P., 1940, CHROMITE DEPOSITS OF GRANT COUNTY, OREGON: U.S. GEOLOGICAL SURVEY BULLETIN 922-D, P. 102-103.