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Lone Tree Mine, Buffalo Mountain Mining District, Humboldt County, Nevada, USAi
Regional Level Types
Lone Tree MineMine
Buffalo Mountain Mining DistrictMining District
Humboldt CountyCounty
NevadaState
USACountry

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Latitude & Longitude (WGS84):
40° 50' 19'' North , 117° 12' 37'' West
Latitude & Longitude (decimal):
Type:
Nearest Settlements:
PlacePopulationDistance
Golconda214 (2011)26.7km
Battle Mountain3,635 (2011)31.9km
Owned/operated by:
Mindat Locality ID:
29496
Long-form identifier:
mindat:1:2:29496:7
GUID (UUID V4):
0


A former Au-Ag-Cu-Mn-Mo-Fe-As-Hg-Sb occurrence/open pit mine located 17.3 km (10.8 miles) ESE of Golconda Summit (Golconda District) (coordinates of record), along the West side of Interstate highway 80. The USGS map illustrates the flooded open pit with a sign saying this is a Newmont mining reclamation site.

The primary mineralization is gold, arsenopyrite and pyrite. The oxidation zone portion of the ore body was heap leached successfully for gold with byproduct silver, but the primary ore was uneconomic.
Alteration: Silicification, Argillization, Pyritization.

Commodity: In sulfide ore, Au is associated mainly with arsenopyrite and to a lesser extent with one or two generations of pyrite.

Deposit: Overburden ranges 1 ft. To 200 ft.

Deposit type: Carbonate-hosted Au-Ag

Development: Hindrance to the siting of the drill holes. Prior to mine development, these power lines were moved at a cost of $4 million. The production decision was made may, 1990, construction began in december, 1990, full scale mining began april, 1991, and the first dore was poured august, 1991. Over 400 drill holes had been completed at lone tree As of april, 1992. ; econ.com: project capital cost was $52.9 million, excluding initial exploration. Cash costs in 1991 were $103.45/oz. Au. A mill equipped with a low temperature, low pressure autoclave to treat sulfide ore is scheduled to be built in 1994 at an estimated cost of $67 million. Drilling at lone tree was conducted near the completion of a much larger drilling program in the south valmy area. Holes at lone tree were sited in part on drilling results at the stonehouse deposit immediately to the south and in part on geologic factors considered since 1987. The discovery hole, th-79, was drilled in july, 1989. It intersected 35 ft. Grading 0.12 opt Au starting at a depth of 140 ft. A follow-up reverse circulation drilling program of 10 holes was begun in august, 1989. These were angle holes drilled mainly As east-west fences in the vicinity of th-79. Of these 10 holes, only 1 failed to intersect significant Au mineralization. By december, 1989, the known strike length of the Au-bearing structure extended nearly 0.5 mile on santa Fe pacific property. An accelerated drilling program beginning in january, 1990, used As many As 17 drill rigs simultaneously. The goal was to delineate an oxide resource by june, 1990. The presence of power lines on the property was a

Rock formation(s): Altered Quartz Porphyry Dikes
Valmy Formation;Antler Sequence;Havallah Sequence


Ore(s): See Comments

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded from this region.


Mineral List

Mineral list contains entries from the region specified including sub-localities

55 valid minerals.

Rock Types Recorded


Rock list contains entries from the region specified including sub-localities

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

Acanthite
Formula: Ag2S
Alunite
Formula: KAl3(SO4)2(OH)6
Anglesite
Formula: PbSO4
'Apatite'
Formula: Ca5(PO4)3A
Arseniosiderite
Formula: Ca2Fe3+3(AsO4)3O2 · 3H2O
Arsenopyrite
Formula: FeAsS
Baryte
Formula: BaSO4
Bornite
Formula: Cu5FeS4
Bournonite
Formula: PbCuSbS3
Cacoxenite
Formula: Fe3+24AlO6(PO4)17(OH)12 · 75H2O
Calcite
Formula: CaCO3
Chalcocite
Formula: Cu2S
Chalcopyrite
Formula: CuFeS2
Chalcostibite
Formula: CuSbS2
Cinnabar
Formula: HgS
Covellite
Formula: CuS
Cuprite
Formula: Cu2O
Cyrilovite
Formula: NaFe3+3(PO4)2(OH)4 · 2H2O
Digenite
Formula: Cu9S5
Dufrénite
Formula: Ca0.5Fe2+Fe3+5(PO4)4(OH)6 · 2H2O
'Feldspar Group'
Fluorapatite
Formula: Ca5(PO4)3F
Fluorapatite var. Carbonate-rich Fluorapatite
Formula: Ca5(PO4,CO3)3(F,O)
Fluorite
Formula: CaF2
Galena
Formula: PbS
Gersdorffite
Formula: NiAsS
Goethite
Formula: Fe3+O(OH)
Hematite
Formula: Fe2O3
Hydroxylapatite
Formula: Ca5(PO4)3(OH)
Hydroxylapatite var. Carbonate-rich Hydroxylapatite
Formula: Ca5(PO4,CO3)3(OH,O)
Ilsemannite
Formula: Mo3O8 · nH2O
Jarosite
Formula: KFe3+3(SO4)2(OH)6
Kaolinite
Formula: Al2(Si2O5)(OH)4
'K Feldspar'
'K Feldspar var. Adularia'
Formula: KAlSi3O8
Leucophosphite
Formula: KFe3+2(PO4)2(OH) · 2H2O
Löllingite
Formula: FeAs2
Magnetite
Formula: Fe2+Fe3+2O4
Marcasite
Formula: FeS2
Molybdenite
Formula: MoS2
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Muscovite var. Sericite
Formula: KAl2(AlSi3O10)(OH)2
Native Copper
Formula: Cu
Native Gold
Formula: Au
Native Gold var. Electrum
Formula: (Au,Ag)
Orpiment
Formula: As2S3
Pharmacosiderite
Formula: KFe3+4(AsO4)3(OH)4 · 6-7H2O
Polybasite
Formula: [Ag6Sb2S7][Ag9CuS4]
Pyrite
Formula: FeS2
Pyrrhotite
Formula: Fe1-xS
Quartz
Formula: SiO2
Realgar
Formula: As4S4
Rhodochrosite
Formula: MnCO3
Romanèchite
Formula: (Ba,H2O)2(Mn4+,Mn3+)5O10
Rozenite
Formula: FeSO4 · 4H2O
Rutile
Formula: TiO2
Scorodite
Formula: Fe3+AsO4 · 2H2O
Siderite
Formula: FeCO3
Sphalerite
Formula: ZnS
Spionkopite
Formula: Cu39S28
Stibnite
Formula: Sb2S3
'Tennantite Subgroup'
Formula: Cu6(Cu4C2+2)As4S12S
'Tetrahedrite Subgroup'
Formula: Cu6(Cu4C2+2)Sb4S12S
Variscite
Formula: AlPO4 · 2H2O
'Wad'
Zircon
Formula: Zr(SiO4)

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Native Copper1.AA.05Cu
Native Gold
var. Electrum
1.AA.05(Au,Ag)
1.AA.05Au
Group 2 - Sulphides and Sulfosalts
Chalcocite2.BA.05Cu2S
Digenite2.BA.10Cu9S5
Bornite2.BA.15Cu5FeS4
Acanthite2.BA.35Ag2S
Covellite2.CA.05aCuS
Spionkopite2.CA.05cCu39S28
Sphalerite2.CB.05aZnS
Chalcopyrite2.CB.10aCuFeS2
Pyrrhotite2.CC.10Fe1-xS
Galena2.CD.10PbS
Cinnabar2.CD.15aHgS
Stibnite2.DB.05Sb2S3
Molybdenite2.EA.30MoS2
Pyrite2.EB.05aFeS2
Marcasite2.EB.10aFeS2
Löllingite2.EB.15aFeAs2
Arsenopyrite2.EB.20FeAsS
Gersdorffite2.EB.25NiAsS
Realgar2.FA.15aAs4S4
Orpiment2.FA.30As2S3
Bournonite2.GA.50PbCuSbS3
'Tennantite Subgroup'2.GB.05Cu6(Cu4C2+2)As4S12S
'Tetrahedrite Subgroup'2.GB.05Cu6(Cu4C2+2)Sb4S12S
Polybasite2.GB.15[Ag6Sb2S7][Ag9CuS4]
Chalcostibite2.HA.05CuSbS2
Group 3 - Halides
Fluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
Goethite4.00.Fe3+O(OH)
Cuprite4.AA.10Cu2O
Magnetite4.BB.05Fe2+Fe3+2O4
Hematite4.CB.05Fe2O3
Quartz4.DA.05SiO2
Rutile4.DB.05TiO2
Romanèchite4.DK.10(Ba,H2O)2(Mn4+,Mn3+)5O10
Ilsemannite4.FJ.15Mo3O8 · nH2O
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Rhodochrosite5.AB.05MnCO3
Siderite5.AB.05FeCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Anglesite7.AD.35PbSO4
Baryte7.AD.35BaSO4
Alunite7.BC.10KAl3(SO4)2(OH)6
Jarosite7.BC.10KFe3+3(SO4)2(OH)6
Rozenite7.CB.15FeSO4 · 4H2O
Group 8 - Phosphates, Arsenates and Vanadates
Fluorapatite
var. Carbonate-rich Fluorapatite
8.BN.05Ca5(PO4,CO3)3(F,O)
Hydroxylapatite
var. Carbonate-rich Hydroxylapatite
8.BN.05Ca5(PO4,CO3)3(OH,O)
Fluorapatite8.BN.05Ca5(PO4)3F
Hydroxylapatite8.BN.05Ca5(PO4)3(OH)
Scorodite8.CD.10Fe3+AsO4 · 2H2O
Variscite8.CD.10AlPO4 · 2H2O
Cacoxenite8.DC.40Fe3+24AlO6(PO4)17(OH)12 · 75H2O
Leucophosphite8.DH.10KFe3+2(PO4)2(OH) · 2H2O
Arseniosiderite8.DH.30Ca2Fe3+3(AsO4)3O2 · 3H2O
Pharmacosiderite8.DK.10KFe3+4(AsO4)3(OH)4 · 6-7H2O
Dufrénite8.DK.15Ca0.5Fe2+Fe3+5(PO4)4(OH)6 · 2H2O
Cyrilovite8.DL.10NaFe3+3(PO4)2(OH)4 · 2H2O
Group 9 - Silicates
Zircon9.AD.30Zr(SiO4)
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
var. Sericite9.EC.15KAl2(AlSi3O10)(OH)2
Kaolinite9.ED.05Al2(Si2O5)(OH)4
Unclassified
'K Feldspar
var. Adularia'
-KAlSi3O8
'Feldspar Group'-
'Wad'-
'K Feldspar'-
'Apatite'-Ca5(PO4)3A

List of minerals for each chemical element

HHydrogen
H AluniteKAl3(SO4)2(OH)6
H ArseniosideriteCa2Fe33+(AsO4)3O2 · 3H2O
H CacoxeniteFe243+AlO6(PO4)17(OH)12 · 75H2O
H Hydroxylapatite var. Carbonate-rich HydroxylapatiteCa5(PO4,CO3)3(OH,O)
H CyriloviteNaFe33+(PO4)2(OH)4 · 2H2O
H DufréniteCa0.5Fe2+Fe53+(PO4)4(OH)6 · 2H2O
H GoethiteFe3+O(OH)
H HydroxylapatiteCa5(PO4)3(OH)
H IlsemanniteMo3O8 · nH2O
H JarositeKFe33+(SO4)2(OH)6
H KaoliniteAl2(Si2O5)(OH)4
H LeucophosphiteKFe23+(PO4)2(OH) · 2H2O
H MuscoviteKAl2(AlSi3O10)(OH)2
H PharmacosideriteKFe43+(AsO4)3(OH)4 · 6-7H2O
H Romanèchite(Ba,H2O)2(Mn4+,Mn3+)5O10
H RozeniteFeSO4 · 4H2O
H ScoroditeFe3+AsO4 · 2H2O
H VarisciteAlPO4 · 2H2O
H Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
CCarbon
C CalciteCaCO3
C Fluorapatite var. Carbonate-rich FluorapatiteCa5(PO4,CO3)3(F,O)
C Hydroxylapatite var. Carbonate-rich HydroxylapatiteCa5(PO4,CO3)3(OH,O)
C RhodochrositeMnCO3
C SideriteFeCO3
OOxygen
O K Feldspar var. AdulariaKAlSi3O8
O AluniteKAl3(SO4)2(OH)6
O AnglesitePbSO4
O ArseniosideriteCa2Fe33+(AsO4)3O2 · 3H2O
O BaryteBaSO4
O CacoxeniteFe243+AlO6(PO4)17(OH)12 · 75H2O
O CalciteCaCO3
O Fluorapatite var. Carbonate-rich FluorapatiteCa5(PO4,CO3)3(F,O)
O Hydroxylapatite var. Carbonate-rich HydroxylapatiteCa5(PO4,CO3)3(OH,O)
O CupriteCu2O
O CyriloviteNaFe33+(PO4)2(OH)4 · 2H2O
O DufréniteCa0.5Fe2+Fe53+(PO4)4(OH)6 · 2H2O
O FluorapatiteCa5(PO4)3F
O GoethiteFe3+O(OH)
O HematiteFe2O3
O HydroxylapatiteCa5(PO4)3(OH)
O IlsemanniteMo3O8 · nH2O
O JarositeKFe33+(SO4)2(OH)6
O KaoliniteAl2(Si2O5)(OH)4
O LeucophosphiteKFe23+(PO4)2(OH) · 2H2O
O MagnetiteFe2+Fe23+O4
O MuscoviteKAl2(AlSi3O10)(OH)2
O PharmacosideriteKFe43+(AsO4)3(OH)4 · 6-7H2O
O QuartzSiO2
O RhodochrositeMnCO3
O Romanèchite(Ba,H2O)2(Mn4+,Mn3+)5O10
O RozeniteFeSO4 · 4H2O
O RutileTiO2
O ScoroditeFe3+AsO4 · 2H2O
O SideriteFeCO3
O VarisciteAlPO4 · 2H2O
O ZirconZr(SiO4)
O Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
O ApatiteCa5(PO4)3A
FFluorine
F Fluorapatite var. Carbonate-rich FluorapatiteCa5(PO4,CO3)3(F,O)
F FluorapatiteCa5(PO4)3F
F FluoriteCaF2
NaSodium
Na CyriloviteNaFe33+(PO4)2(OH)4 · 2H2O
AlAluminium
Al K Feldspar var. AdulariaKAlSi3O8
Al AluniteKAl3(SO4)2(OH)6
Al CacoxeniteFe243+AlO6(PO4)17(OH)12 · 75H2O
Al KaoliniteAl2(Si2O5)(OH)4
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al VarisciteAlPO4 · 2H2O
Al Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
SiSilicon
Si K Feldspar var. AdulariaKAlSi3O8
Si KaoliniteAl2(Si2O5)(OH)4
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si QuartzSiO2
Si ZirconZr(SiO4)
Si Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
PPhosphorus
P CacoxeniteFe243+AlO6(PO4)17(OH)12 · 75H2O
P Fluorapatite var. Carbonate-rich FluorapatiteCa5(PO4,CO3)3(F,O)
P Hydroxylapatite var. Carbonate-rich HydroxylapatiteCa5(PO4,CO3)3(OH,O)
P CyriloviteNaFe33+(PO4)2(OH)4 · 2H2O
P DufréniteCa0.5Fe2+Fe53+(PO4)4(OH)6 · 2H2O
P FluorapatiteCa5(PO4)3F
P HydroxylapatiteCa5(PO4)3(OH)
P LeucophosphiteKFe23+(PO4)2(OH) · 2H2O
P VarisciteAlPO4 · 2H2O
P ApatiteCa5(PO4)3A
SSulfur
S AcanthiteAg2S
S AluniteKAl3(SO4)2(OH)6
S AnglesitePbSO4
S ArsenopyriteFeAsS
S BaryteBaSO4
S BorniteCu5FeS4
S BournonitePbCuSbS3
S ChalcopyriteCuFeS2
S ChalcociteCu2S
S ChalcostibiteCuSbS2
S CinnabarHgS
S CovelliteCuS
S DigeniteCu9S5
S GalenaPbS
S GersdorffiteNiAsS
S JarositeKFe33+(SO4)2(OH)6
S MarcasiteFeS2
S MolybdeniteMoS2
S OrpimentAs2S3
S Polybasite[Ag6Sb2S7][Ag9CuS4]
S PyriteFeS2
S PyrrhotiteFe1-xS
S RealgarAs4S4
S RozeniteFeSO4 · 4H2O
S SphaleriteZnS
S SpionkopiteCu39S28
S StibniteSb2S3
S Tennantite SubgroupCu6(Cu4C22+)As4S12S
S Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
KPotassium
K K Feldspar var. AdulariaKAlSi3O8
K AluniteKAl3(SO4)2(OH)6
K JarositeKFe33+(SO4)2(OH)6
K LeucophosphiteKFe23+(PO4)2(OH) · 2H2O
K MuscoviteKAl2(AlSi3O10)(OH)2
K PharmacosideriteKFe43+(AsO4)3(OH)4 · 6-7H2O
K Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
CaCalcium
Ca ArseniosideriteCa2Fe33+(AsO4)3O2 · 3H2O
Ca CalciteCaCO3
Ca Fluorapatite var. Carbonate-rich FluorapatiteCa5(PO4,CO3)3(F,O)
Ca Hydroxylapatite var. Carbonate-rich HydroxylapatiteCa5(PO4,CO3)3(OH,O)
Ca DufréniteCa0.5Fe2+Fe53+(PO4)4(OH)6 · 2H2O
Ca FluorapatiteCa5(PO4)3F
Ca FluoriteCaF2
Ca HydroxylapatiteCa5(PO4)3(OH)
Ca ApatiteCa5(PO4)3A
TiTitanium
Ti RutileTiO2
MnManganese
Mn RhodochrositeMnCO3
Mn Romanèchite(Ba,H2O)2(Mn4+,Mn3+)5O10
FeIron
Fe ArsenopyriteFeAsS
Fe ArseniosideriteCa2Fe33+(AsO4)3O2 · 3H2O
Fe BorniteCu5FeS4
Fe CacoxeniteFe243+AlO6(PO4)17(OH)12 · 75H2O
Fe ChalcopyriteCuFeS2
Fe CyriloviteNaFe33+(PO4)2(OH)4 · 2H2O
Fe DufréniteCa0.5Fe2+Fe53+(PO4)4(OH)6 · 2H2O
Fe GoethiteFe3+O(OH)
Fe HematiteFe2O3
Fe JarositeKFe33+(SO4)2(OH)6
Fe LeucophosphiteKFe23+(PO4)2(OH) · 2H2O
Fe LöllingiteFeAs2
Fe MagnetiteFe2+Fe23+O4
Fe MarcasiteFeS2
Fe PharmacosideriteKFe43+(AsO4)3(OH)4 · 6-7H2O
Fe PyriteFeS2
Fe PyrrhotiteFe1-xS
Fe RozeniteFeSO4 · 4H2O
Fe ScoroditeFe3+AsO4 · 2H2O
Fe SideriteFeCO3
NiNickel
Ni GersdorffiteNiAsS
CuCopper
Cu BorniteCu5FeS4
Cu BournonitePbCuSbS3
Cu ChalcopyriteCuFeS2
Cu ChalcociteCu2S
Cu ChalcostibiteCuSbS2
Cu CovelliteCuS
Cu CupriteCu2O
Cu Native CopperCu
Cu DigeniteCu9S5
Cu Polybasite[Ag6Sb2S7][Ag9CuS4]
Cu SpionkopiteCu39S28
Cu Tennantite SubgroupCu6(Cu4C22+)As4S12S
Cu Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
ZnZinc
Zn SphaleriteZnS
AsArsenic
As ArsenopyriteFeAsS
As ArseniosideriteCa2Fe33+(AsO4)3O2 · 3H2O
As GersdorffiteNiAsS
As LöllingiteFeAs2
As OrpimentAs2S3
As PharmacosideriteKFe43+(AsO4)3(OH)4 · 6-7H2O
As RealgarAs4S4
As ScoroditeFe3+AsO4 · 2H2O
As Tennantite SubgroupCu6(Cu4C22+)As4S12S
ZrZirconium
Zr ZirconZr(SiO4)
MoMolybdenum
Mo IlsemanniteMo3O8 · nH2O
Mo MolybdeniteMoS2
AgSilver
Ag AcanthiteAg2S
Ag Native Gold var. Electrum(Au,Ag)
Ag Polybasite[Ag6Sb2S7][Ag9CuS4]
SbAntimony
Sb BournonitePbCuSbS3
Sb ChalcostibiteCuSbS2
Sb Polybasite[Ag6Sb2S7][Ag9CuS4]
Sb StibniteSb2S3
Sb Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
BaBarium
Ba BaryteBaSO4
Ba Romanèchite(Ba,H2O)2(Mn4+,Mn3+)5O10
AuGold
Au Native Gold var. Electrum(Au,Ag)
Au Native GoldAu
HgMercury
Hg CinnabarHgS
PbLead
Pb AnglesitePbSO4
Pb BournonitePbCuSbS3
Pb GalenaPbS

Other Databases

Link to USGS MRDS:10055099
Link to USGS MRDS:10149516

Localities in this Region

Other Regions, Features and Areas containing this locality


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