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Brown Lake Prospect, Okanogan County, Washington, USAi
Regional Level Types
Brown Lake ProspectProspect
Okanogan CountyCounty
WashingtonState
USACountry

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Latitude & Longitude (WGS84):
48° 27' 57'' North , 119° 39' 22'' West
Latitude & Longitude (decimal):
48.46611,-119.65611
GRN:
N33W58
Type:
Prospect
Köppen climate type:
Dsb : Warm, dry-summer continental climate
Nearest Settlements:
PlacePopulationDistance
Omak4,854 (2017)11.3km
Riverside271 (2017)11.7km
Conconully213 (2017)12.3km
Okanogan2,569 (2017)12.8km
North Omak688 (2011)15.8km
Mindat Locality ID:
68858
Long-form identifier:
mindat:1:2:68858:2
GUID (UUID V4):
0


A chromium prospect located just west of Brown Lake that worked chromiferous green quartzite underlain by peridotite and features open pits.
Deposit: Chromiferous green qtzite several acres in extent. Also, a small lens in serpentine. Deeded land

Development: Open pits

Geology: Quartzite underlain by peridotite. ; geol.desc: quartzite overlies peridotite

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


4 valid minerals.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ Chromite
Formula: Fe2+Cr3+2O4
ⓘ Clinochlore ?
Formula: Mg5Al(AlSi3O10)(OH)8
ⓘ Clinochlore var. Chromium-bearing Clinochlore ?
Formula: Mg5(Al,Cr)2Si3O10(OH)8
ⓘ Muscovite ?
Formula: KAl2(AlSi3O10)(OH)2
ⓘ Muscovite var. Mariposite ?
Formula: K(Al,Cr)2(Al,Si)4O10(OH)2
ⓘ Muscovite var. Phengite ?
Formula: KAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
ⓘ Pyrrhotite
Formula: Fe1-xS
ⓘ 'Serpentine Subgroup'
Formula: D3[Si2O5](OH)4

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘPyrrhotite2.CC.10Fe1-xS
Group 4 - Oxides and Hydroxides
ⓘChromite4.BB.05Fe2+Cr3+2O4
Group 9 - Silicates
ⓘMuscovite ?9.EC.15KAl2(AlSi3O10)(OH)2
ⓘvar. Phengite ?9.EC.15KAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
ⓘvar. Mariposite ?9.EC.15K(Al,Cr)2(Al,Si)4O10(OH)2
ⓘClinochlore ?9.EC.55Mg5Al(AlSi3O10)(OH)8
ⓘvar. Chromium-bearing Clinochlore ?9.EC.55Mg5(Al,Cr)2Si3O10(OH)8
Unclassified
ⓘ'Serpentine Subgroup'-D3[Si2O5](OH)4

List of minerals for each chemical element

HHydrogen
Hⓘ ClinochloreMg5Al(AlSi3O10)(OH)8
Hⓘ Clinochlore var. Chromium-bearing ClinochloreMg5(Al,Cr)2Si3O10(OH)8
Hⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Hⓘ Muscovite var. PhengiteKAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Hⓘ Muscovite var. MaripositeK(Al,Cr)2(Al,Si)4O10(OH)2
Hⓘ Serpentine SubgroupD3[Si2O5](OH)4
OOxygen
Oⓘ ChromiteFe2+Cr23+O4
Oⓘ ClinochloreMg5Al(AlSi3O10)(OH)8
Oⓘ Clinochlore var. Chromium-bearing ClinochloreMg5(Al,Cr)2Si3O10(OH)8
Oⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Oⓘ Muscovite var. PhengiteKAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Oⓘ Muscovite var. MaripositeK(Al,Cr)2(Al,Si)4O10(OH)2
Oⓘ Serpentine SubgroupD3[Si2O5](OH)4
MgMagnesium
Mgⓘ ClinochloreMg5Al(AlSi3O10)(OH)8
Mgⓘ Clinochlore var. Chromium-bearing ClinochloreMg5(Al,Cr)2Si3O10(OH)8
Mgⓘ Muscovite var. PhengiteKAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
AlAluminium
Alⓘ ClinochloreMg5Al(AlSi3O10)(OH)8
Alⓘ Clinochlore var. Chromium-bearing ClinochloreMg5(Al,Cr)2Si3O10(OH)8
Alⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Alⓘ Muscovite var. PhengiteKAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Alⓘ Muscovite var. MaripositeK(Al,Cr)2(Al,Si)4O10(OH)2
SiSilicon
Siⓘ ClinochloreMg5Al(AlSi3O10)(OH)8
Siⓘ Clinochlore var. Chromium-bearing ClinochloreMg5(Al,Cr)2Si3O10(OH)8
Siⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Siⓘ Muscovite var. PhengiteKAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Siⓘ Muscovite var. MaripositeK(Al,Cr)2(Al,Si)4O10(OH)2
Siⓘ Serpentine SubgroupD3[Si2O5](OH)4
SSulfur
Sⓘ PyrrhotiteFe1-xS
KPotassium
Kⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Kⓘ Muscovite var. PhengiteKAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Kⓘ Muscovite var. MaripositeK(Al,Cr)2(Al,Si)4O10(OH)2
CrChromium
Crⓘ ChromiteFe2+Cr23+O4
Crⓘ Clinochlore var. Chromium-bearing ClinochloreMg5(Al,Cr)2Si3O10(OH)8
Crⓘ Muscovite var. MaripositeK(Al,Cr)2(Al,Si)4O10(OH)2
FeIron
Feⓘ ChromiteFe2+Cr23+O4
Feⓘ Muscovite var. PhengiteKAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Feⓘ PyrrhotiteFe1-xS

Other Databases

Link to USGS MRDS:10041568

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate

This page 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

Valentine, Grant M., Huntting, Marshall T. (1960) Part II - Metallic Minerals, in Inventory of Washington Minerals. Vol II. Bulletin 37, Washington Geological Survey.
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