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Butte Reduction Works smelter slag locality, Butte Mining District (Summit Valley Mining District), Silver Bow County, Montana, USAi
Regional Level Types
Butte Reduction Works smelter slag localitySlag Locality
Butte Mining District (Summit Valley Mining District)Mining District
Silver Bow CountyCounty
MontanaState
USACountry

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Latitude & Longitude (WGS84):
45° 59' 51'' North , 112° 32' 36'' West
Latitude & Longitude (decimal):
45.99756,-112.54361
GeoHash:
G#: c2pvxj85p
GRN:
N31W57
Type:
Slag Locality
Köppen climate type:
BSk : Cold semi-arid (steppe) climate
Nearest Settlements:
PlacePopulationDistance
Butte34,190 (2011)1.0km
Walkerville700 (2017)4.1km
Butte-Silver Bow (Balance)33,525 (2013)13.8km
Warm Springs3,000 (2013)27.6km
Anaconda9,417 (2011)34.0km
Mindat Locality ID:
333200
Long-form identifier:
mindat:1:2:333200:2
GUID (UUID V4):
0
Other/historical names associated with this locality:
BRW smelter slag locality; Butte Reduction Works (Lower Area One)


Copper smelter.
Historic (1880s to circa 1910) smelting of the copper-rich lodes of Butte, Montana produced slag that exists as monolithic “walls” which border Silver Bow Creek, the headwaters of the upper Clark Fork River Superfund site.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


11 valid minerals.

Detailed Mineral List:

ⓘ Bornite
Formula: Cu5FeS4
ⓘ Chalcocite
Formula: Cu2S
ⓘ 'Clinopyroxene Subgroup'
ⓘ Fayalite
Formula: Fe2+2SiO4
ⓘ 'Fayalite-Forsterite Series'
ⓘ 'Glass'
ⓘ Hedenbergite
Formula: CaFe2+Si2O6
ⓘ Kirschsteinite
Formula: CaFe2+SiO4
ⓘ Magnetite
Formula: Fe2+Fe3+2O4
ⓘ Petedunnite
Formula: CaZnSi2O6
ⓘ 'Pyroxene Group'
Formula: ADSi2O6
ⓘ Sphalerite
Formula: ZnS
ⓘ Spinel
Formula: MgAl2O4
ⓘ Wollastonite
Formula: Ca3(Si3O9)
ⓘ Wüstite
Formula: FeO

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘChalcocite2.BA.05Cu2S
ⓘBornite2.BA.15Cu5FeS4
ⓘSphalerite2.CB.05aZnS
Group 4 - Oxides and Hydroxides
ⓘWüstite4.AB.25FeO
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘSpinel4.BB.05MgAl2O4
Group 9 - Silicates
ⓘFayalite9.AC.05Fe2+2SiO4
ⓘKirschsteinite9.AC.05CaFe2+SiO4
ⓘHedenbergite9.DA.15CaFe2+Si2O6
ⓘPetedunnite9.DA.15CaZnSi2O6
ⓘWollastonite9.DG.05Ca3(Si3O9)
Unclassified
ⓘ'Clinopyroxene Subgroup'-
ⓘ'Fayalite-Forsterite Series'-
ⓘ'Pyroxene Group'-ADSi2O6
ⓘ'Glass'-

List of minerals for each chemical element

OOxygen
Oⓘ FayaliteFe22+SiO4
Oⓘ HedenbergiteCaFe2+Si2O6
Oⓘ KirschsteiniteCaFe2+SiO4
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ PetedunniteCaZnSi2O6
Oⓘ SpinelMgAl2O4
Oⓘ WüstiteFeO
Oⓘ WollastoniteCa3(Si3O9)
Oⓘ Fayalite-Forsterite Series
Oⓘ Pyroxene GroupADSi2O6
MgMagnesium
Mgⓘ SpinelMgAl2O4
Mgⓘ Fayalite-Forsterite Series
AlAluminium
Alⓘ SpinelMgAl2O4
SiSilicon
Siⓘ FayaliteFe22+SiO4
Siⓘ HedenbergiteCaFe2+Si2O6
Siⓘ KirschsteiniteCaFe2+SiO4
Siⓘ PetedunniteCaZnSi2O6
Siⓘ WollastoniteCa3(Si3O9)
Siⓘ Fayalite-Forsterite Series
Siⓘ Pyroxene GroupADSi2O6
SSulfur
Sⓘ BorniteCu5FeS4
Sⓘ ChalcociteCu2S
Sⓘ SphaleriteZnS
CaCalcium
Caⓘ HedenbergiteCaFe2+Si2O6
Caⓘ KirschsteiniteCaFe2+SiO4
Caⓘ PetedunniteCaZnSi2O6
Caⓘ WollastoniteCa3(Si3O9)
FeIron
Feⓘ BorniteCu5FeS4
Feⓘ FayaliteFe22+SiO4
Feⓘ HedenbergiteCaFe2+Si2O6
Feⓘ KirschsteiniteCaFe2+SiO4
Feⓘ MagnetiteFe2+Fe23+O4
Feⓘ WüstiteFeO
Feⓘ Fayalite-Forsterite Series
CuCopper
Cuⓘ BorniteCu5FeS4
Cuⓘ ChalcociteCu2S
ZnZinc
Znⓘ PetedunniteCaZnSi2O6
Znⓘ SphaleriteZnS

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate
USA

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

semspub.epa.gov (n.d.) https://semspub.epa.gov/work/08/1895091.pdf
buttearchives.pastperfectonline.com (n.d.) https://buttearchives.pastperfectonline.com/bysearchterm?keyword=Butte+Reduction+Works
Kaplan, Jenna (2016): Mineralogy and Environmental Geochemistry of Slag in Lower Area One, Butte, Montana. MSc Thesis Montana Tech, Butte, Montana, USA, 144 pp. https://digitalcommons.mtech.edu/grad_rsch/79/
www.flickr.com (2019) https://www.flickr.com/photos/buttepubliclibrary/4752516231
digitalcommons.mtech.edu (2021) https://digitalcommons.mtech.edu/superfund_silverbowbutte/5/
www.verdigrisproject.org (n.d.) https://www.verdigrisproject.org/butte-americas-story-blog/butte-americas-story-episode-185-butte-reduction-works
Gammons, Christopher H.; Kaplan, Jenna (2024) Mineralogy and environmental geochemistry of copper slag from Butte, Montana. Journal of Geochemical Exploration, 267. 107599 doi:10.1016/j.gexplo.2024.107599
www.flickr.com (n.d.) https://www.flickr.com/photos/buttepubliclibrary/4342110504
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