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Washington Pass, Golden Horn Batholith, Okanogan Co., Washington, USA

Latitude: 48°31'27"N
Longitude: 120°39'11"W
This list encompasses several different environments of the Golden Horn Batholith at Washington Pass.

Collectors traditionally dig at least 3 miles or more from the pass (Saul Krotki information); strictly speaking the correct locality is North Cascade Highway, milepost XXX, Okanogan County, WA.

Mineral List

Mineral list contains entries from the region specified including sub-localities
Aegirine
Aenigmatite
Agardite-(Y)
Albite
Allanite-(Ce)
Anatase
Annite
'Apatite'
Arfvedsonite
Astrophyllite
Bastnäsite-(Ce)
β-Fergusonite-(Y)
'Biotite'
'var: Oxybiotite'
Calciocatapleiite
Calciohilairite (TL)
Calcite
Cerussite
Chamosite
Chevkinite-(Ce)
'Chlorite Group'
Chrysocolla
Clinochlore ?
Elpidite
var: Calcian Elpidite

Epidote
Euxenite-(Y)
Fayalite
Ferro-hornblende
Ferro-richterite
Fluorite
'Fluorplumbopyrochlore' (TL)
Gadolinite-(Ce)
Gadolinite-(Y)
Gagarinite-(Y)
Galena
Genthelvite
Goethite
Hastingsite
var: Alkali-ferrohastingsite

Hematite
Hisingerite ?
Kainosite-(Y)
Löllingite
Magnetite
Malachite
Masutomilite
Microcline
Molybdenite
Monazite-(Ce)
Okanoganite-(Y) (TL)
Orthoclase
Parisite-(Ce)
Pharmacosiderite
Polylithionite
Prehnite
Pyrite
Quartz
Riebeckite
Scorodite
Siderite
Sogdianite
Sphalerite
Synchysite-(Ce)
Synchysite-(Y)
Thorianite
Titanite
Wulfenite
Xenotime-(Y)
Zektzerite (TL)
Zircon


71 entries listed. 62 valid minerals. 3 type localities (valid minerals). 1 type locality (other).

Localities in this Region

USA
  • Washington
    • Okanogan Co.

The above list contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Stull, Robert J. (1973): Calcic and alkali amphiboles from North Cascades, the Golden Horn Batholith, Washington. American Mineralogist, 58, 873-878.

Cannon, B. (1975): Minerals of Washington: 38, 49, 51.

Boggs, Russell C. (1980): Okanoganite, a new rare-earth borofluorosilicate from the Golden Horn Batholith, Okanogan County, Washington. American Mineralogist, 65, 1138-1142.

Mineralogical Record (1983), 14: 51.

Boggs, R. C. (1984): Mineralogy and Geochemistry of the Golden Horn Batholith Northern Cascades, Washington, University of California at Santa Barbara.

Boggs, Russell C. (1988): Calciohilairite: CaZrSi3O9.3H2O, the calcium analogue of hilairite from the Golden Horn batholith, northern Cascades, Washington. American Mineralogist, 73, 1191-1194.

Rocks and Minerals (1991): 66(6): 453-458.

Micro Probe: VI(8).

Kartashov, P.M. personal data.

External Links


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Copyright © Jolyon Ralph and Ida Chau 1993-2013. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of thousands of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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