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McLean Mine, Esmeralda Co., Nevada, USA

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Latitude & Longitude (WGS84): 38° 11' 58'' North , 117° 41' 30'' West
Latitude & Longitude (decimal): 38.19963,-117.69173
GeoHash:G#: 9qu33f52z
Locality type:Mine
Köppen climate type:BWk : Cold desert climate


Deposit: Planning year-round operation. Operates at 1000 stpd (907.1 mt/d).

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Commodity List

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


Mineral List


5 valid minerals.

Detailed Mineral List:

Alunite
Formula: KAl3(SO4)2(OH)6
Reference: Excalibur Minerals specimen
Fluorapatite
Formula: Ca5(PO4)3F
Reference: Excalibur Mineral Corporation specimens.
Fluorapatite var: Carbonate-rich Fluorapatite
Formula: Ca5(PO4,CO3)3(F,O)
Reference: Excalibur Mineral Corporation specimens.
Goethite
Formula: α-Fe3+O(OH)
Reference: Excalibur Mineral Corporation specimens.
'commodity:Gold'
Formula: Au
Reference:  
Jarosite
Formula: KFe3+ 3(SO4)2(OH)6
Reference: Excalibur Mineral Corporation specimens.
'commodity:Silver'
Formula: Ag
Reference:  
Strengite
Formula: FePO4 · 2H2O
Reference: Excalibur Mineral Corporation specimens.

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Goethite4.00.α-Fe3+O(OH)
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
'Alunite'7.BC.10KAl3(SO4)2(OH)6
Jarosite7.BC.10KFe3+ 3(SO4)2(OH)6
Group 8 - Phosphates, Arsenates and Vanadates
Fluorapatite8.BN.05Ca5(PO4)3F
var: Carbonate-rich Fluorapatite8.BN.05Ca5(PO4,CO3)3(F,O)
Strengite8.CD.10FePO4 · 2H2O

List of minerals arranged by Dana 8th Edition classification

Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
XO(OH)
Goethite6.1.1.2α-Fe3+O(OH)
Group 30 - ANHYDROUS SULFATES CONTAINING HYDROXYL OR HALOGEN
(AB)2(XO4)Zq
Alunite30.2.4.1KAl3(SO4)2(OH)6
Jarosite30.2.5.1KFe3+ 3(SO4)2(OH)6
Group 40 - HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
(AB)5(XO4)2·xH2O
Strengite40.4.1.2FePO4 · 2H2O
Group 41 - ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
A5(XO4)3Zq
Fluorapatite41.8.1.1Ca5(PO4)3F
var: Carbonate-rich Fluorapatite41.8.1.4Ca5(PO4,CO3)3(F,O)

List of minerals for each chemical element

HHydrogen
H AluniteKAl3(SO4)2(OH)6
H Goethiteα-Fe3+O(OH)
H JarositeKFe3+ 3(SO4)2(OH)6
H StrengiteFePO4 · 2H2O
CCarbon
C Fluorapatite (var: Carbonate-rich Fluorapatite)Ca5(PO4,CO3)3(F,O)
OOxygen
O AluniteKAl3(SO4)2(OH)6
O Fluorapatite (var: Carbonate-rich Fluorapatite)Ca5(PO4,CO3)3(F,O)
O FluorapatiteCa5(PO4)3F
O Goethiteα-Fe3+O(OH)
O JarositeKFe3+ 3(SO4)2(OH)6
O StrengiteFePO4 · 2H2O
FFluorine
F Fluorapatite (var: Carbonate-rich Fluorapatite)Ca5(PO4,CO3)3(F,O)
F FluorapatiteCa5(PO4)3F
AlAluminium
Al AluniteKAl3(SO4)2(OH)6
PPhosphorus
P Fluorapatite (var: Carbonate-rich Fluorapatite)Ca5(PO4,CO3)3(F,O)
P FluorapatiteCa5(PO4)3F
P StrengiteFePO4 · 2H2O
SSulfur
S AluniteKAl3(SO4)2(OH)6
S JarositeKFe3+ 3(SO4)2(OH)6
KPotassium
K AluniteKAl3(SO4)2(OH)6
K JarositeKFe3+ 3(SO4)2(OH)6
CaCalcium
Ca Fluorapatite (var: Carbonate-rich Fluorapatite)Ca5(PO4,CO3)3(F,O)
Ca FluorapatiteCa5(PO4)3F
FeIron
Fe Goethiteα-Fe3+O(OH)
Fe JarositeKFe3+ 3(SO4)2(OH)6
Fe StrengiteFePO4 · 2H2O

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Neogene
2.588 - 23.03 Ma



ID: 3186305
Cenozoic volcanic rocks

Age: Neogene (2.588 - 23.03 Ma)

Stratigraphic Name: Columbia River Basalt

Comments: Columbia Plateau

Lithology: Flood basalt(s); mafic volcanic rocks; basalt

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Miocene - Oligocene
5.333 - 33.9 Ma



ID: 2967761
Andesite and basalt flows

Age: Cenozoic (5.333 - 33.9 Ma)

Stratigraphic Name: Mizpah Trachyte; Malpais Basalt; Rabbit Spring Formation; Mira Basalt

Description: Generally poorly age constrained. This unit includes rocks originally mapped as the Pyramid sequence in Washoe County, the Mizpah Trachyte in Nye County, the Malpais Basalt, Rabbit Spring Formation, and Mira Basalt in Esmeralda County, and many other poorly dated unnamed basaltic and andesitic rocks around the State. It corresponds to unit Tba on the 1978 State map.

Comments: Original map source: Crafford, A.E.J., 2007, Geologic Map of Nevada: U.S. Geological Survey Data Series 249, 1 CD-ROM, 46 p., 1 plate; Scale 1:250,000.

Lithology: Major:{andesite,basalt}

Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. [133]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Nevada Bureau of Mines and Geology, Spe. Pub 10, (1990),


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