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Finch Quarry, Chewelah Mining District, Stevens County, Washington, USAi
Regional Level Types
Finch QuarryQuarry
Chewelah Mining DistrictMining District
Stevens CountyCounty
WashingtonState
USACountry

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PhotosMapsSearch
09582690017272042273848.jpg
Quarry with open adit

Finch Quarry, Chewelah Mining District, Stevens County, Washington, USA
09582690017272042273848.jpg
Quarry with open adit

Finch Quarry, Chewelah Mining District, Stevens County, Washington, USA
09582690017272042273848.jpg
Quarry with open adit

Finch Quarry, Chewelah Mining District, Stevens County, Washington, USA
Latitude & Longitude (WGS84):
48° 14' 48'' North , 117° 49' 10'' West
Latitude & Longitude (decimal):
48.24670,-117.81970
GRN:
N33W57
Type:
Quarry
Köppen climate type:
Dsb : Warm, dry-summer continental climate
Nearest Settlements:
PlacePopulationDistance
Chewelah2,607 (2011)8.4km
Valley146 (2011)10.6km
Addy268 (2011)12.2km
Springdale275 (2017)21.8km
Loon Lake783 (2011)24.8km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Panorama Gem & Mineral ClubArden, Washington24km
Mindat Locality ID:
17217
Long-form identifier:
mindat:1:2:17217:9
GUID (UUID V4):
0
Other/historical names associated with this locality:
Finch Magnesite Quarry; Finch Mine


A large magnesite mine by Browns Lake SW of Chewelah. The ore occurred as a lens of magnesite 1600' long and from 300' to 650' deep. It operated from 1917 to 1954 and was for a time the largest magnesite mine in Washington, and one of the largest in the country. Ore was produced from multiple quarries, one of which dropped its ore down to a haulage adit. Around 3,000,000 tons of ore was produced. A five mile long aerial tramway connected the mine to the magnesite plant in Chewelah.

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


5 valid minerals.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘQuartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
ⓘMagnesite5.AB.05MgCO3
ⓘDolomite5.AB.10CaMg(CO3)2
ⓘHydrotalcite5.DA.50Mg6Al2(CO3)(OH)16 · 4H2O

List of minerals for each chemical element

HHydrogen
Hⓘ HydrotalciteMg6Al2(CO3)(OH)16 · 4H2O
CCarbon
Cⓘ CalciteCaCO3
Cⓘ DolomiteCaMg(CO3)2
Cⓘ HydrotalciteMg6Al2(CO3)(OH)16 · 4H2O
Cⓘ MagnesiteMgCO3
OOxygen
Oⓘ CalciteCaCO3
Oⓘ DolomiteCaMg(CO3)2
Oⓘ HydrotalciteMg6Al2(CO3)(OH)16 · 4H2O
Oⓘ MagnesiteMgCO3
Oⓘ QuartzSiO2
MgMagnesium
Mgⓘ DolomiteCaMg(CO3)2
Mgⓘ HydrotalciteMg6Al2(CO3)(OH)16 · 4H2O
Mgⓘ MagnesiteMgCO3
AlAluminium
Alⓘ HydrotalciteMg6Al2(CO3)(OH)16 · 4H2O
SiSilicon
Siⓘ QuartzSiO2
CaCalcium
Caⓘ CalciteCaCO3
Caⓘ DolomiteCaMg(CO3)2

Other Databases

Link to USGS MRDS:10301908

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

Whitwell, George E., Patty, Ernest M. (1921) The Magnesite Deposits of Washington Their Occurrence and Technology. Bulletin 25. Washington Geological Survey
Valentine, Grant M., Huntting, Marshall T. (1956) Part I - Nonmetallic minerals, in Inventory of Washington Minerals. Bulletin 37, Washington Geological Survey.
(1962) Geology of the magnesite belt of Stevens County, Washington. Bulletin 1142f. US Geological Survey doi:10.3133/b1142f
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