The Violet is a chromium mine located in Josephine county, Oregon at an elevation of 3,681 feet.
About the MRDS Data:
All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.
Mine Info
Elevation: 3,681 Feet (1,122 Meters)
Commodity: Chromium
Lat, Long: 42.4425, -123.72778
Map: View on Google Maps
Satelite View
MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.
Violet MRDS details
Site Name
Primary: Violet
Secondary: Briggs Creek Sordy
Secondary: Part of Sordy Group
Commodity
Primary: Chromium
Tertiary: Platinum
Tertiary: Palladium
Tertiary: Iridium
Tertiary: Ruthenium
Tertiary: Rhodium
Location
State: Oregon
County: Josephine
District: Chrome Ridge District
Land Status
Land ownership: National Forest
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.
Administrative Organization: Siskiyou National Forest
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Year: 1955
Time Period: 1942-1955
Material type: TOTAL
Description: Cp_Grade: ^44.99% Cr2o3 (Weighted Average Grade)
Year: 1944
Time Period: 1942-1944
Material type: ORE
Description: Cp_Grade: ^39% Cr2o3, 2.4:1 Cr:Fe
Year: 1955
Time Period: 1951-1955
Material type: ORE
Description: Cp_Grade: ^44-52% Cr2o3 (Conc.)
Deposit
Record Type: Site
Operation Category: Producer
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Pacific Mountain System
Physiographic Province: Pacific Border Province
Physiographic Section: Klamath Mountains
Mineral Deposit Model
Model Name: Podiform chromite (minor)
Orebody
Form: LAYERS OF DISSEMINATED ORE
Form: LAYERS OF DISSEMINATED ORE
Structure
Type: L
Description: Close To Axis Of Syncline
Alterations
Alteration Type: L
Alteration Text: Local Serpentinization
Rocks
Name: Peridotite
Role: Associated
Age Type: Associated Rock
Age Young: Late Jurassic
Name: Peridotite
Role: Associated
Age Type: Host Rock
Age Young: Late Jurassic
Name: Peridotite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Late Jurassic
Name: Peridotite
Role: Associated
Age Type: Host Rock Unit
Age Young: Late Jurassic
Analytical Data
Analytical Data: RH=18, 19 PPB.
Analytical Data: RU=200 PPB (1 NOT ANALYZED)
Analytical Data: IR=40 PPB (1 NOT ANALYZED)
Analytical Data: PD=<4, 9 PPB
Analytical Data: CONCENTRATES MADE FROM DISSEMINATED ORE CONTAIN 11.85% CR2O3. NOTE: 52.3% CR2O3, 17.6% FE, 1.3% SIO2, 13.0% MGO, 11.2% AL2O3. 2 PGE ANALYSES: PT=<10, 15 PPB
Analytical Data: ORE CONCENTRATES TO A UNIFORM HIGH GRADE OF ABOUT 53% CR2O3, 14% FE
Materials
Ore: Chromite
Gangue: Olivine
Comments
Comment (Location): LOCATION GIVEN IS FOR PGE SAMPLE SITE LOCATION. TOPO MAP SHOWS NO PROSPECTS IN AREA
Comment (Reserve-Resource): RESERVE ESTIMATES 4,000-5,000 TONS AT 30% CR203
Comment (Production): PRODUCTION LISTED FOR SORDY GROUP, MOST FROM VIOLET.
Comment (Deposit): OFFSET BY EN ECHELON FAULTS, FOLDED. GLORY HOLE DATA GIVEN
Comment (Workings): TWO SETS OF WORKINGS, UPPER (CAVED IN 1955) AND LOWER. UPPER IS 2 TUNNELS AND OPEN CUT, LOWER IS 2 TUNNELS AND GLORY HOLE. GLORY HOLE LOCATED NEAR AXIS OF SYNCLINE
References
Reference (Deposit): THAYER, T.P., 1974, U.S. GEOLOGICAL SURVEY, UNPUB. DATA.
Reference (Deposit): PAGE, N.J, JOHNSON, M.G., HAFFTY, JOSEPH, AND RAMP, LEN, 1975, OCCURRENCE OF PLATINUM GROUP METALS IN ULTRAMAFIC ROCKS OF THE MEDFORD-COOS BAY 2 DEGREE QUADRANGLE, SOUTHWESTERN OREGON: U.S. GEOLOGICAL SURVEY MISCELLANEOUS FIELD STUDIES MAP MF-694, SCALE 1:250,000.
Reference (Deposit): RAMP, LEN, AND PETERSON, N.V., 1979, GEOLOGY AND MINERAL RESOURCES OF JOSEPHINE COUNTY, OREGON: OREGON DEPARTMENT OF GEOLOGY AND MINERAL INDUSTRIES BULLETIN 100, TABLE 1.
Reference (Deposit): OREGON DEPARTMENT OF GEOLOGY AND MINERAL INDUSTRIES, 1952, OREGON METAL MINES HANDBOOK, SOUTHWESTERN OREGON--JOSEPHINE COUNTY (2D ED.): OREGON DEPARTMENT OF GEOLOGY AND MINERAL INDUSTRIES BULLETIN 14-C, V. 2, SEC. 1, P. 145-146.
Reference (Deposit): RAMP, LEN, 1961, CHROMITE IN SOUTHWESTERN OREGON: OREGON DEPARTMENT OF GEOLOGY AND MINERAL INDUSTRIES BULLETIN 52, P. 80-81.
Reference (Deposit): WELLS, F.G., PAGE, L.R., AND JAMES, H.L., 1941, CHROMITE DEPOSITS IN THE SOURDOUGH AREA, CURRY COUNTY, AND THE BRIGGS CREEK AREA, JOSEPHINE COUNTY, OREGON: U.S. GEOLOGICAL SURVEY BULLETIN 922-P, PT. 4, P. 461-496.
Reference (Deposit): 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.
Oregon Gold
"Where to Find Gold in Oregon" looks at the density of modern placer mining claims along with historical gold mining locations and mining district descriptions to determine areas of high gold discovery potential in Oregon. Read more: Where to Find Gold in Oregon.
