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Ready Cash Mine, Cypress Island, Skagit County, Washington, USAi
Regional Level Types
Ready Cash MineMine
Cypress IslandIsland
Skagit CountyCounty
WashingtonState
USACountry

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Latitude & Longitude (WGS84):
48° 34' 54'' North , 122° 43' 15'' West
Latitude & Longitude (decimal):
48.58194,-122.72111
GeoHash:
G#: c28srkj4q
GRN:
N33W59
Type:
Mine
Köppen climate type:
Csb : Warm-summer Mediterranean climate
Nearest Settlements:
PlacePopulationDistance
Anacortes16,403 (2017)11.1km
Orcas394 (2008)16.5km
Edison133 (2011)20.5km
Bay View696 (2011)21.0km
Friday Harbor2,340 (2017)22.4km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Mount Baker Rock And Gem ClubBellingham, Washington26km
Skagit Rock and Gem ClubMt. Vernon, Washington33km
North Puget Sound Facetors GuildMount Vernon, Washington34km
Mindat Locality ID:
17674
Long-form identifier:
mindat:1:2:17674:0
GUID (UUID V4):
0


A chromium mine just west of Cypress Lake on Cypress Island. This mine worked disseminated chromite in serpentine.


Structure: San Juan Thrust

Alteration: Dunite Has Been Serpentinized

Tectonics: Accreted Terrane

Deposit: Record m045070 has been merged and deleted. Chromite forms irregular veinlets 1 in. Or more thick and bunches of pockets 1 ft or more in diameter. Surrounding masses of serpentine contain disseminated chromite. There may be small placer accumulations on beaches near deposit - this has not been confirmed

Deposit type: Podiform chromite (minor)

Geology: Host rocks are part of ophiolite-arc volcanic sequence in the decatur terrane, structurally highest unit of the san juan thrust system

Rock formation(s): Fidalgo Complex


Ore(s): Magmatic Segregaton

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


2 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
ⓘ 'Fayalite-Forsterite Series'
ⓘ 'Hornblende Root Name Group'
Formula: ◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2
Description: Chromium Bearing
ⓘ 'Limonite'
ⓘ 'Limonite var. Chromium-bearing Limonite'
Formula: (Fe,Cr)O(OH) · nH2O
ⓘ 'Serpentine Subgroup'
Formula: D3[Si2O5](OH)4

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘChromite4.BB.05Fe2+Cr3+2O4
Group 9 - Silicates
ⓘClinochlore9.EC.55Mg5Al(AlSi3O10)(OH)8
ⓘvar. Chromium-bearing Clinochlore9.EC.55Mg5(Al,Cr)2Si3O10(OH)8
Unclassified
ⓘ'Limonite'-
ⓘ'Fayalite-Forsterite Series'-
ⓘ'Hornblende Root Name Group'-◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2
ⓘ'Serpentine Subgroup'-D3[Si2O5](OH)4
ⓘ'Limonite
var. Chromium-bearing Limonite'		-(Fe,Cr)O(OH) · nH2O

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ⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Hⓘ Serpentine SubgroupD3[Si2O5](OH)4
Hⓘ Limonite var. Chromium-bearing Limonite(Fe,Cr)O(OH) · nH2O
OOxygen
Oⓘ ChromiteFe2+Cr23+O4
Oⓘ ClinochloreMg5Al(AlSi3O10)(OH)8
Oⓘ Clinochlore var. Chromium-bearing ClinochloreMg5(Al,Cr)2Si3O10(OH)8
Oⓘ Fayalite-Forsterite Series
Oⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Oⓘ Serpentine SubgroupD3[Si2O5](OH)4
Oⓘ Limonite var. Chromium-bearing Limonite(Fe,Cr)O(OH) · nH2O
FFluorine
Fⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
MgMagnesium
Mgⓘ ClinochloreMg5Al(AlSi3O10)(OH)8
Mgⓘ Clinochlore var. Chromium-bearing ClinochloreMg5(Al,Cr)2Si3O10(OH)8
Mgⓘ Fayalite-Forsterite Series
AlAluminium
Alⓘ ClinochloreMg5Al(AlSi3O10)(OH)8
Alⓘ Clinochlore var. Chromium-bearing ClinochloreMg5(Al,Cr)2Si3O10(OH)8
Alⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
SiSilicon
Siⓘ ClinochloreMg5Al(AlSi3O10)(OH)8
Siⓘ Clinochlore var. Chromium-bearing ClinochloreMg5(Al,Cr)2Si3O10(OH)8
Siⓘ Fayalite-Forsterite Series
Siⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Siⓘ Serpentine SubgroupD3[Si2O5](OH)4
ClChlorine
Clⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
CaCalcium
Caⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
CrChromium
Crⓘ ChromiteFe2+Cr23+O4
Crⓘ Clinochlore var. Chromium-bearing ClinochloreMg5(Al,Cr)2Si3O10(OH)8
Crⓘ Limonite var. Chromium-bearing Limonite(Fe,Cr)O(OH) · nH2O
FeIron
Feⓘ ChromiteFe2+Cr23+O4
Feⓘ Fayalite-Forsterite Series
Feⓘ Limonite var. Chromium-bearing Limonite(Fe,Cr)O(OH) · nH2O

Other Databases

Link to USGS MRDS:10047970

Other Regions, Features and Areas containing this locality

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

Pardee, J.T. (1921) Chromite Ores in Washington, USGS Bulletin 725 Contributions to Economic Geology 1921
Valentine, Grant M., Huntting, Marshall T. (1960) Part II - Metallic Minerals, in Inventory of Washington Minerals. Vol II. Bulletin 37, Washington Geological Survey.
Cannon, Bart (1975) Minerals of Washington. Cordilleran, Mercer Island, WA.
Derkey, Robert E., Joseph, Nancy L., Lasmanis, Raymond (1990, November) Metal Mines of Washington - Preliminary Report. Open File Report 90-18. Washington Division of Geology and Earth Resources
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