Mineral Evolution Database
Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.
Mineral locality data provided by mindat.org

Important Update News

The RRUFF Project has been migrated to RRUFF.net. Please update your bookmarks immediately, if you have not done so.

The data on this website is already three years out of date, and the entire website will be taken offline before the end of the year.

We are grateful to NASA for the funding of this effort.




The Mineral Evolution database is currently under development.

The goal of this page is to present localities at which the mineral is found, and estimates of the oldest possible geologic age of the minerals at these localities.


Locality Name:
Washington Co., Oregon, USA


mindat Locality ID: 131402
mindat URL: http://www.mindat.org/loc-131402.html

Tectonic Settings:

Total number of sublocalities beneath "Washington Co., Oregon, USA": 79
Total number of bottom-level sublocalities: 79

Number of Child Localities: 79
Child Localities:
Aloha Quarry Quality Rock Plant No. 1 (Quality Rock Plant No. 1)
Banks Rock Products Quarry
Beaverton Quarry (Cobb Rock-Beaverton Quarry)
Beet Bend Quarry
Buxton Quarry (Publisher's Paper Company; Burton Pit; Publishers Paper Company Quarry)
Carpenter Creek Pit
Carpenter Creek Quarry (Vanaken Crushed Rock)
City Of Forest Grove (MRDS - 10051530)
City Of Forest Grove (MRDS - 10051531)
Clear Creek Quarry
Cloverleaf Mines Ltd.
Coffee Lake Pit
Compton/Stiller Pit (J. C. Compton Company)
Cornell Pit
Crown-Zellerbach Company
D. Ellis
Dixie Mountain Bauxite Occurrence (Hendrickson)
Dixie Mountain Bauxite Occurrence (Hutchison-Nixon)
Durham Quarry
Eaton Sand And Gravel
Empire Pit & Plant
Farmington Quarry (Baker Rock Crushing-Farmington Pit)
Forest Grove Clay Products Company
Gales Creek Pit
Gaston/Person Quarry (Dayton Sand And Gravel-Person Pit)
Grabhorn Quarry
Grahams Pit (Baker Rock Crushing-Grahams Pit)
Hergert Quarry (Willamette Industries)
Hillsboro Platinum Occurrence
Hillside Quarry (Karban Construction Company)
Jackson Creek Quarry (Washington Company-Jackson Creek Quarry)
John Mathews
Laurel Quarry (Vanaken Crushed Rock-Laurel Quarry)
Lite Rock Company
Luck Quarry
Melvin Howel
Murray Road Quarry (Progress Quarries-Murray Road)
Nelson
O. K. Brickyard
Oregon State Highway Division (MRDS - 10051872)
Oregon State Highway Division (MRDS - 10051874)
Oregon State Highway Division (MRDS - 10128889)
Oregon State Highway Division (MRDS - 10134631)
Oregon State Highway Division (MRDS - 10153640)
Otto Rock Pit (David Otto)
Parkin Quarry (Karban Construction Company)
Persons Quarry
Peterson Rock Pit
Plant No. 2
Progress Quarry
Pumpkin Ridge Bauxite Occurrence
Quality Quarry & Plant
Red Flat Hill Bauxite Occurrence
Rock Creek Quarry (Washington County-Rock Creek Quarry)
Satellite Quarry
Schmidt
Scholls Tile Company (Groner-Rowell Company)
Shale Pit (MRDS - 10054587)
Stearns Rock Quarry
Stiller Quarry
Stimson Lumber Company
Tonquin Quarry (Dales Sand & Gravel)
Tonquin Quarry (Stearns Rock-Tonquin Pit)
Tonquin Quarry (Tigard Sand And Gravel)
Tonquin Road Quarry (Eaton Sand And Gravel)
Town Quarry
Tualatin Mountains Bauxite Occurrence
Unnamed Stone - Crushed/Broken Pit (MRDS - 10159078)
Unnamed Stone - Crushed/Broken Pit (MRDS - 10177862)
Unnamed Stone - Crushed/Broken Pit (MRDS - 10177964)
Unnamed Stone - Crushed/Broken Pit (MRDS - 10275233)
Unnamed Stone - Crushed/Broken Pit (State Of Oregon; MRDS - 10299473)
Unnamed Stone - Crushed/Broken Quarry (MRDS - 10275147)
Unnamed Stone Pit (MRDS - 10128924)
Unnamed Stone Pit (MRDS - 10275157)
Unnamed Stone Quarry (MRDS - 10275257)
Vaandering Crushed Rock (Vandering Crushed Rock)
Vandecoevering
Washington-Multnomah Area Prospect (Dixie Mountain Area; Pumpkin Ridge Area; Washington And Multnomah Counties; Portland Hills Bauxite)

Latitude: 45°32'27"N
Longitude: 123°2'51"W
Decimal Degree (lat, lon): 45.540833333333,-123.0475

AThis mineral is Anthropogenic.
GThis mineral is directly dated.
BThis mineral is reported as having this age.
YThis mineral is using an age reported as an element mineralization period.
OThis mineral is using an age calculated from all data at the locality.
RThe age displayed for this mineral originates from a different, non-child locality.
PThe age displayed for this mineral is the range of ages for this mineral at all of this locality's children.
This mineral's age has not yet been recorded.

This Mineral list contains entries from this locality, including sub-localities. Minerals in bold are reported by mindat.org as occurring directly at this locality, and do not occur at any children (sublocalities) of this locality.

Elements at this locality, including sub-localities: Al Fe H O 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
NoneSpinel

2 IMA Minerals at location:
Gibbsite  (*)Magnetite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Gibbsite  (*)NoneAl(OH)31262282504
Magnetite  (*)SpinelFe2+Fe3+2O4126224914899



No ages have been assigned to this locality yet.

SampleSource LocalityReference URL


All locality data graciously provided by mindat.org

All age data...

Other copyright data...