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Mountain King Mine, Potosi Mining District, Osgood Mountains, Humboldt County, Nevada, USAi
Regional Level Types
Mountain King MineMine
Potosi Mining DistrictMining District
Osgood MountainsMountain Range
Humboldt CountyCounty
NevadaState
USACountry

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Latitude & Longitude (WGS84):
41° 12' 29'' North , 117° 17' 5'' West
Latitude & Longitude (decimal):
41.20822,-117.28485
GeoHash:
G#:9rkd7jez2
GRN:
N28W64
Type:
Mine
Köppen climate type:
BSk : Cold semi-arid (steppe) climate
Nearest Settlements:
PlacePopulationDistance
Golconda214(2011)33.1km
Paradise Valley109(2011)37.9km
Winnemucca7,887(2017)45.9km
Mindat Locality ID:
59650
Long-form identifier:
mindat:1:2:59650:0
GUID (UUID V4):
0
Other/historical names associated with this locality:
T.N.T. Lease, May Overlap Knight Prospect Ed Knight's Claims, NBMG Sample Site 2616, R. E. Claims Pit


Sec 31 T39N R42E. Tactite
Structure:Closely Spaced Joints Trend N10e, Dip 28w

Alteration:Nontronite-Alteration Of Garnet; Mica, Chlorite Altered Zones In Both Hornfels And Granodiorite, Associated With Joint Set: Apatite, Scheelite, Chlorite, Silicification, White Mica, Goethite, Limonite.

Deposit: The property covers a part of the northern contact zone of the granodiorite stock with limy sediments of the preble fm. Pods of scheelite-bearing tactite occur in the thin limestone lenses that are interbedded with argillaceous hornfels where the strike of the bedding is into or at a slight angle to the granodiorite contact. The tactite is thickest at the contact and pinches out to the northeast along the strike of the beds. The tungsten content of the ore mined ranged from 0.35 % to 0.85 % w03 and probably averaged about 0.6 %. The deposit contains a small pod of garnet-quartz-tremolite skarn on the northern contact of the northern lobe of osgood granodiorite. Limestone section here is discontinuous and tactite pods are small. The zone could connect with that of the richmond mine to -the west. Workings include 3 open cuts under lease to ronrex mining co. In 1956. Open pit mining started in 1951, continued intermittently through 1956. ; info.src : 1 pub lit; 2 unpub rept; 3 field observ

Deposit type: W skarn

Development: Intermittent open-pit mining 1951-1956. The mountain king claim, owned by taylor, neilsen, and thomas (t.n.t.) of battle mountain, and adjoining property, leased from the southern pacific railroad co., was mined by open-pit methods from 1951 to 1956. No activity in 1984.

Geology: Localization of tactite bodies controlled by composition and bedding it follows bedding in limestone; tactite bodies are thickest next to the granodiorite and become narrower and pinch out northward along strike of beds.

Rock formation(s):Osgood Mtns. Stock
Preble Formation


Ore(s):Tactite At Igneous Contact; Favorable Beds

Select Mineral List Type

StandardDetailedGalleryStrunzChemical Elements

Commodity List

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


Mineral List


9 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 ListTree Diagram

Detailed Mineral List:

ⓘAxinite-(Fe)
Formula:Ca2Fe2+Al2BSi4O15OH
ⓘFluorapatite
Formula:Ca5(PO4)3F
ⓘ'Garnet Group'
Formula:X3Z2(SiO4)3
ⓘHydrokenoelsmoreite
Formula:◻2W2O6(H2O)
ⓘHydrokenoelsmoreite var. Ferritungstite
Formula:◻2(W,Fe3+)2(O,OH)6(H2O)
ⓘLaumontite
Formula:CaAl2Si4O12 · 4H2O
ⓘNontronite
Formula:Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
ⓘPyrite
Formula:FeS2
ⓘQuartz
Formula:SiO2
ⓘScheelite
Formula:Ca(WO4)
ⓘTremolite
Formula:◻Ca2Mg5(Si8O22)(OH)2

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘPyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
ⓘQuartz4.DA.05SiO2
ⓘHydrokenoelsmoreite
var. Ferritungstite		4.DH.15◻2(W,Fe3+)2(O,OH)6(H2O)
ⓘ4.DH.15◻2W2O6(H2O)
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘScheelite7.GA.05Ca(WO4)
Group 8 - Phosphates, Arsenates and Vanadates
ⓘFluorapatite8.BN.05Ca5(PO4)3F
Group 9 - Silicates
ⓘAxinite-(Fe)9.BD.20Ca2Fe2+Al2BSi4O15OH
ⓘTremolite9.DE.10◻Ca2Mg5(Si8O22)(OH)2
ⓘNontronite9.EC.40Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
ⓘLaumontite9.GB.10CaAl2Si4O12 · 4H2O
Unclassified
ⓘ'Garnet Group'-X3Z2(SiO4)3

List of minerals for each chemical element

HHydrogen
HⓘAxinite-(Fe)Ca2Fe2+Al2BSi4O15OH
HⓘHydrokenoelsmoreite var.Ferritungstite◻2(W,Fe3+)2(O,OH)6(H2O)
HⓘLaumontiteCaAl2Si4O12 · 4H2O
HⓘNontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
HⓘTremolite◻Ca2Mg5(Si8O22)(OH)2
HⓘHydrokenoelsmoreite◻2W2O6(H2O)
BBoron
BⓘAxinite-(Fe)Ca2Fe2+Al2BSi4O15OH
OOxygen
OⓘAxinite-(Fe)Ca2Fe2+Al2BSi4O15OH
OⓘHydrokenoelsmoreite var.Ferritungstite◻2(W,Fe3+)2(O,OH)6(H2O)
OⓘFluorapatiteCa5(PO4)3F
OⓘLaumontiteCaAl2Si4O12 · 4H2O
OⓘNontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
OⓘQuartzSiO2
OⓘScheeliteCa(WO4)
OⓘTremolite◻Ca2Mg5(Si8O22)(OH)2
OⓘGarnet GroupX3Z2(SiO4)3
OⓘHydrokenoelsmoreite◻2W2O6(H2O)
FFluorine
FⓘFluorapatiteCa5(PO4)3F
NaSodium
NaⓘNontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
MgMagnesium
MgⓘTremolite◻Ca2Mg5(Si8O22)(OH)2
AlAluminium
AlⓘAxinite-(Fe)Ca2Fe2+Al2BSi4O15OH
AlⓘLaumontiteCaAl2Si4O12 · 4H2O
AlⓘNontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
SiSilicon
SiⓘAxinite-(Fe)Ca2Fe2+Al2BSi4O15OH
SiⓘLaumontiteCaAl2Si4O12 · 4H2O
SiⓘNontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
SiⓘQuartzSiO2
SiⓘTremolite◻Ca2Mg5(Si8O22)(OH)2
SiⓘGarnet GroupX3Z2(SiO4)3
PPhosphorus
PⓘFluorapatiteCa5(PO4)3F
SSulfur
SⓘPyriteFeS2
CaCalcium
CaⓘAxinite-(Fe)Ca2Fe2+Al2BSi4O15OH
CaⓘFluorapatiteCa5(PO4)3F
CaⓘLaumontiteCaAl2Si4O12 · 4H2O
CaⓘScheeliteCa(WO4)
CaⓘTremolite◻Ca2Mg5(Si8O22)(OH)2
FeIron
FeⓘAxinite-(Fe)Ca2Fe2+Al2BSi4O15OH
FeⓘHydrokenoelsmoreite var.Ferritungstite◻2(W,Fe3+)2(O,OH)6(H2O)
FeⓘNontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
FeⓘPyriteFeS2
WTungsten
WⓘHydrokenoelsmoreite var.Ferritungstite◻2(W,Fe3+)2(O,OH)6(H2O)
WⓘScheeliteCa(WO4)
WⓘHydrokenoelsmoreite◻2W2O6(H2O)

Other Databases

Link to USGS MRDS:10045084

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, pleaseregister so you can add to our database. This locality information is for reference purposes only. You should never attempt tovisit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holdersfor access and that you are aware of all safety precautions necessary.

References

Hobbs, S.W., Clabaough, S.E., (1946), Tungsten Deposits of the Osgood Range, Humboldt Co, Nev., Univ Nev. Bull 40, No. 5; Geol. & Min. Ser. No. 44.
Willden, R., (1964), Geology and Mineral Deposits of Humboldt Co., Nev; Nev. Bureau of Mines Bull 59.
Hotz, P.E., and Willden, R., (1964), Geology and Mineral Deposits of the Osgood Mtns. Quadrangle Humboldt Co., Nev.; U.S.G.S. Prof Paper 431.
NBMG Staff (1985) NBMG OFR 85-3.
Stager, H. K., in Preparation, (1986), NBMG Bull on Tungsten Deposits of Nevada.
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