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Unnamed coal mine, Weld County, Colorado, USAi
Regional Level Types
Unnamed coal mineMine
Weld CountyCounty
ColoradoState
USACountry

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Latitude & Longitude (WGS84):
40° 5' 8'' North , 104° 57' 27'' West
Latitude & Longitude (decimal):
40.08562,-104.95772
GeoHash:
G#: 9xjk59k5e
GRN:
N27W58
Type:
Mine
Köppen climate type:
BSk : Cold semi-arid (steppe) climate
Nearest Settlements:
PlacePopulationDistance
Dacono4,792 (2017)1.6km
Frederick11,413 (2017)2.3km
Firestone11,999 (2017)3.5km
Erie21,420 (2017)8.8km
Fort Lupton7,822 (2017)12.3km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Flatirons Mineral ClubBoulder, Colorado28km
Mile High Rock and Mineral SocietyArvada, Colorado33km
Denver Gem and Mineral GuildDenver, Colorado39km
Friends of Mineralogy - Colorado Chapter Denver, Colorado39km
Western Interior Paleontological SocietyDenver, Colorado39km
Mindat Locality ID:
298269
Long-form identifier:
mindat:1:2:298269:7
GUID (UUID V4):
0


Laramie formation. Boulder-Weld coal field.
Near intersection of Colorado 52 and county road 11

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


13 valid minerals.

Detailed Mineral List:

ⓘ Blödite
Formula: Na2Mg(SO4)2 · 4H2O
ⓘ Epsomite
Formula: MgSO4 · 7H2O
ⓘ Eugsterite
Formula: Na4Ca(SO4)3 · 2H2O
ⓘ Gypsum
Formula: CaSO4 · 2H2O
ⓘ Halite
Formula: NaCl
ⓘ Hexahydrite
Formula: MgSO4 · 6H2O
ⓘ Konyaite
Formula: Na2Mg(SO4)2 · 5H2O
ⓘ Löweite
Formula: Na12Mg7(SO4)13 · 15H2O
ⓘ Mirabilite
Formula: Na2SO4 · 10H2O
ⓘ Natrojarosite
Formula: NaFe3(SO4)2(OH)6
ⓘ Nitratine
Formula: NaNO3
ⓘ Thénardite
Formula: Na2SO4
ⓘ Wattevilleite
Formula: Na2Ca(SO4)2 · 4H2O (?)

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 3 - Halides
ⓘHalite3.AA.20NaCl
Group 5 - Nitrates and Carbonates
ⓘNitratine5.NA.05NaNO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘThénardite7.AD.25Na2SO4
ⓘNatrojarosite7.BC.10NaFe3(SO4)2(OH)6
ⓘHexahydrite7.CB.25MgSO4 · 6H2O
ⓘEpsomite7.CB.40MgSO4 · 7H2O
ⓘLöweite7.CC.45Na12Mg7(SO4)13 · 15H2O
ⓘBlödite7.CC.50Na2Mg(SO4)2 · 4H2O
ⓘKonyaite7.CC.80Na2Mg(SO4)2 · 5H2O
ⓘWattevilleite7.CC.85Na2Ca(SO4)2 · 4H2O (?)
ⓘMirabilite7.CD.10Na2SO4 · 10H2O
ⓘEugsterite7.CD.25Na4Ca(SO4)3 · 2H2O
ⓘGypsum7.CD.40CaSO4 · 2H2O

List of minerals for each chemical element

HHydrogen
Hⓘ BlöditeNa2Mg(SO4)2 · 4H2O
Hⓘ EpsomiteMgSO4 · 7H2O
Hⓘ EugsteriteNa4Ca(SO4)3 · 2H2O
Hⓘ GypsumCaSO4 · 2H2O
Hⓘ HexahydriteMgSO4 · 6H2O
Hⓘ KonyaiteNa2Mg(SO4)2 · 5H2O
Hⓘ LöweiteNa12Mg7(SO4)13 · 15H2O
Hⓘ MirabiliteNa2SO4 · 10H2O
Hⓘ NatrojarositeNaFe3(SO4)2(OH)6
Hⓘ WattevilleiteNa2Ca(SO4)2 · 4H2O (?)
NNitrogen
Nⓘ NitratineNaNO3
OOxygen
Oⓘ BlöditeNa2Mg(SO4)2 · 4H2O
Oⓘ EpsomiteMgSO4 · 7H2O
Oⓘ EugsteriteNa4Ca(SO4)3 · 2H2O
Oⓘ GypsumCaSO4 · 2H2O
Oⓘ HexahydriteMgSO4 · 6H2O
Oⓘ KonyaiteNa2Mg(SO4)2 · 5H2O
Oⓘ LöweiteNa12Mg7(SO4)13 · 15H2O
Oⓘ MirabiliteNa2SO4 · 10H2O
Oⓘ NatrojarositeNaFe3(SO4)2(OH)6
Oⓘ NitratineNaNO3
Oⓘ ThénarditeNa2SO4
Oⓘ WattevilleiteNa2Ca(SO4)2 · 4H2O (?)
NaSodium
Naⓘ BlöditeNa2Mg(SO4)2 · 4H2O
Naⓘ EugsteriteNa4Ca(SO4)3 · 2H2O
Naⓘ HaliteNaCl
Naⓘ KonyaiteNa2Mg(SO4)2 · 5H2O
Naⓘ LöweiteNa12Mg7(SO4)13 · 15H2O
Naⓘ MirabiliteNa2SO4 · 10H2O
Naⓘ NatrojarositeNaFe3(SO4)2(OH)6
Naⓘ NitratineNaNO3
Naⓘ ThénarditeNa2SO4
Naⓘ WattevilleiteNa2Ca(SO4)2 · 4H2O (?)
MgMagnesium
Mgⓘ BlöditeNa2Mg(SO4)2 · 4H2O
Mgⓘ EpsomiteMgSO4 · 7H2O
Mgⓘ HexahydriteMgSO4 · 6H2O
Mgⓘ KonyaiteNa2Mg(SO4)2 · 5H2O
Mgⓘ LöweiteNa12Mg7(SO4)13 · 15H2O
SSulfur
Sⓘ BlöditeNa2Mg(SO4)2 · 4H2O
Sⓘ EpsomiteMgSO4 · 7H2O
Sⓘ EugsteriteNa4Ca(SO4)3 · 2H2O
Sⓘ GypsumCaSO4 · 2H2O
Sⓘ HexahydriteMgSO4 · 6H2O
Sⓘ KonyaiteNa2Mg(SO4)2 · 5H2O
Sⓘ LöweiteNa12Mg7(SO4)13 · 15H2O
Sⓘ MirabiliteNa2SO4 · 10H2O
Sⓘ NatrojarositeNaFe3(SO4)2(OH)6
Sⓘ ThénarditeNa2SO4
Sⓘ WattevilleiteNa2Ca(SO4)2 · 4H2O (?)
ClChlorine
Clⓘ HaliteNaCl
CaCalcium
Caⓘ EugsteriteNa4Ca(SO4)3 · 2H2O
Caⓘ GypsumCaSO4 · 2H2O
Caⓘ WattevilleiteNa2Ca(SO4)2 · 4H2O (?)
FeIron
Feⓘ NatrojarositeNaFe3(SO4)2(OH)6

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

Zielinski, R. A., Otton, J. K., & Johnson, C. A. (2001). Sources of salinity near a coal mine spoil pile, north-central Colorado. Journal of environmental quality, 30(4), 1237-1248.
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