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McAlpine Mine, Peñon Blanco Peak, Coulterville Mining District, Tuolumne County, California, USAi
Regional Level Types
McAlpine MineMine
Peñon Blanco PeakPeak
Coulterville Mining DistrictMining District
Tuolumne CountyCounty
CaliforniaState
USACountry

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Latitude & Longitude (WGS84):
37° 45' 57'' North , 120° 15' 8'' West
Latitude & Longitude (decimal):
37.76611,-120.25250
GeoHash:
G#: 9qdqze4g9
GRN:
N26W68
Type:
Mine
Köppen climate type:
Csa : Hot-summer Mediterranean climate
Nearest Settlements:
PlacePopulationDistance
Coulterville201 (2011)7.8km
Groveland601 (2011)8.2km
Greeley Hill915 (2011)11.0km
Chinese Camp126 (2011)19.7km
Tuolumne City1,779 (2011)21.9km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Mariposa Gem & Mineral ClubMariposa, California40km
Calaveras Gem & Mineral SocietyAngels Camp, California42km
Mindat Locality ID:
20926
Long-form identifier:
mindat:1:2:20926:0
GUID (UUID V4):
1461bfc9-949e-45f5-9d0f-ee213d59c6c7


A former lode Au mine located in sec. 18, T2S, R16E, MDM, 3.9 km (2.4 miles) NNE of Peñon Blanco Peak (coordinates of record), in the headwaters area of Moccasin Creek (2 miles N of Tuolumne County line on highway 49, sign No. 7887; about 4½ miles S of Big Oak Flats; 5 miles N of Coulterville), on private (patented) land. Owned and operated by Jerry and Joan Dubson (100.00%), California (1981). MRDS database stated accuracy for this location is 100 meters.

Mineralization is a quartz vein deposit with quartz veins in bunch-like bodies. The ore body strikes NW and dips E at a thickness of 30.48 meters. The highest grade ore occurs in talcose veins in association with quartz near the hanging wall. Local rocks include ultramafic rocks, chiefly Mesozoic, unit 2 (Western Sierra Nevada and Klamath Mountains).

Workings include unspecified underground openings.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


36 valid minerals. 1 (TL) - type locality of valid minerals.

Detailed Mineral List:

ⓘ Acanthite
Formula: Ag2S
ⓘ Albite
Formula: Na(AlSi3O8)
ⓘ Altaite
Formula: PbTe
ⓘ Annabergite
Formula: Ni3(AsO4)2 · 8H2O
ⓘ Azurite
Formula: Cu3(CO3)2(OH)2
ⓘ Calcite
Formula: CaCO3
ⓘ Chalcopyrite
Formula: CuFeS2
ⓘ Chlorargyrite
Formula: AgCl
ⓘ 'Chlorite Group'
ⓘ Choloalite
Formula: (Cu,Sb)3(Pb,Ca)3(TeO3)6Cl
ⓘ Dolomite
Formula: CaMg(CO3)2
ⓘ Dolomite var. Iron-bearing Dolomite
Formula: Ca(Mg,Fe)(CO3)2
ⓘ Galena
Formula: PbS
ⓘ Gersdorffite
Formula: NiAsS
ⓘ Goethite
Formula: α-Fe3+O(OH)
ⓘ Gold
Formula: Au
Description: Occurs in small amounts.
ⓘ Gold var. Electrum
Formula: (Au,Ag)
ⓘ Graphite
Formula: C
ⓘ Hematite
Formula: Fe2O3
ⓘ Hessite
Formula: Ag2Te
ⓘ Keystoneite
Formula: Mg0.5Ni2+Fe3+(Te4+O3)3 · 4.5H2O
ⓘ Kuranakhite
Formula: PbMn4+Te6+O6
ⓘ Magnesite
Formula: MgCO3
ⓘ Malachite
Formula: Cu2(CO3)(OH)2
ⓘ Mcalpineite (TL)
Formula: Cu3(Te6+O6)
Type Locality:
ⓘ Melonite
Formula: NiTe2
ⓘ Millerite
Formula: NiS
ⓘ Mimetite
Formula: Pb5(AsO4)3Cl
ⓘ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
ⓘ Muscovite var. Fuchsite
Formula: K(Al,Cr)3Si3O10(OH)2
ⓘ Muscovite var. Mariposite
Formula: K(Al,Cr)2(Al,Si)4O10(OH)2
ⓘ Muscovite var. Phengite
Formula: KAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
ⓘ Muscovite var. Sericite
Formula: KAl2(AlSi3O10)(OH)2
ⓘ Owyheeite
Formula: Ag3Pb10Sb11S28
ⓘ Petzite
Formula: Ag3AuTe2
ⓘ Pyrargyrite
Formula: Ag3SbS3
ⓘ Pyrite
Formula: FeS2
ⓘ Pyrrhotite
Formula: Fe1-xS
ⓘ Quartz
Formula: SiO2
ⓘ 'Serpentine Subgroup'
Formula: D3[Si2O5](OH)4
ⓘ Silver
Formula: Ag
ⓘ Skutterudite
Formula: CoAs3
ⓘ Sphalerite
Formula: ZnS
ⓘ Talc
Formula: Mg3Si4O10(OH)2
ⓘ 'Tetrahedrite Subgroup'
Formula: Cu6(Cu4C2+2)Sb4S12S

Gallery:

(Cu,Sb)3(Pb,Ca)3(TeO3)6Clⓘ Choloalite
Ag2Teⓘ Hessite
Mg0.5Ni2+Fe3+(Te4+O3)3 · 4.5H2Oⓘ Keystoneite
Ag3AuTe2ⓘ Petzite

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘSilver1.AA.05Ag
ⓘGold1.AA.05Au
ⓘvar. Electrum1.AA.05(Au,Ag)
ⓘGraphite1.CB.05aC
Group 2 - Sulphides and Sulfosalts
ⓘAcanthite2.BA.35Ag2S
ⓘHessite2.BA.60Ag2Te
ⓘPetzite2.BA.75Ag3AuTe2
ⓘSphalerite2.CB.05aZnS
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘPyrrhotite2.CC.10Fe1-xS
ⓘMillerite2.CC.20NiS
ⓘGalena2.CD.10PbS
ⓘAltaite2.CD.10PbTe
ⓘMelonite2.EA.20NiTe2
ⓘPyrite2.EB.05aFeS2
ⓘGersdorffite2.EB.25NiAsS
ⓘSkutterudite2.EC.05CoAs3
ⓘPyrargyrite2.GA.05Ag3SbS3
ⓘ'Tetrahedrite Subgroup'2.GB.05Cu6(Cu4C2+2)Sb4S12S
ⓘOwyheeite2.HC.35Ag3Pb10Sb11S28
Group 3 - Halides
ⓘChlorargyrite3.AA.15AgCl
Group 4 - Oxides and Hydroxides
ⓘGoethite4.00.α-Fe3+O(OH)
ⓘHematite4.CB.05Fe2O3
ⓘQuartz4.DA.05SiO2
ⓘKuranakhite4.DM.25PbMn4+Te6+O6
ⓘCholoalite4.JK.45(Cu,Sb)3(Pb,Ca)3(TeO3)6Cl
ⓘKeystoneite4.JM.05Mg0.5Ni2+Fe3+(Te4+O3)3 · 4.5H2O
Group 5 - Nitrates and Carbonates
ⓘMagnesite5.AB.05MgCO3
ⓘCalcite5.AB.05CaCO3
ⓘDolomite
var. Iron-bearing Dolomite		5.AB.10Ca(Mg,Fe)(CO3)2
ⓘ5.AB.10CaMg(CO3)2
ⓘAzurite5.BA.05Cu3(CO3)2(OH)2
ⓘMalachite5.BA.10Cu2(CO3)(OH)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘMcalpineite (TL)7.AB.55Cu3(Te6+O6)
Group 8 - Phosphates, Arsenates and Vanadates
ⓘMimetite8.BN.05Pb5(AsO4)3Cl
ⓘAnnabergite8.CE.40Ni3(AsO4)2 · 8H2O
Group 9 - Silicates
ⓘTalc9.EC.05Mg3Si4O10(OH)2
ⓘMuscovite
var. Mariposite		9.EC.15K(Al,Cr)2(Al,Si)4O10(OH)2
ⓘvar. Sericite9.EC.15KAl2(AlSi3O10)(OH)2
ⓘ9.EC.15KAl2(AlSi3O10)(OH)2
ⓘvar. Fuchsite9.EC.15K(Al,Cr)3Si3O10(OH)2
ⓘvar. Phengite9.EC.15KAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
ⓘAlbite9.FA.35Na(AlSi3O8)
Unclassified
ⓘ'Chlorite Group'-
ⓘ'Serpentine Subgroup'-D3[Si2O5](OH)4

List of minerals for each chemical element

HHydrogen
Hⓘ AnnabergiteNi3(AsO4)2 · 8H2O
Hⓘ AzuriteCu3(CO3)2(OH)2
Hⓘ Muscovite var. FuchsiteK(Al,Cr)3Si3O10(OH)2
Hⓘ Goethiteα-Fe3+O(OH)
Hⓘ KeystoneiteMg0.5Ni2+Fe3+(Te4+O3)3 · 4.5H2O
Hⓘ MalachiteCu2(CO3)(OH)2
Hⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Hⓘ Muscovite var. PhengiteKAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Hⓘ TalcMg3Si4O10(OH)2
Hⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Hⓘ Muscovite var. MaripositeK(Al,Cr)2(Al,Si)4O10(OH)2
Hⓘ Serpentine SubgroupD3[Si2O5](OH)4
CCarbon
Cⓘ AzuriteCu3(CO3)2(OH)2
Cⓘ CalciteCaCO3
Cⓘ DolomiteCaMg(CO3)2
Cⓘ GraphiteC
Cⓘ MagnesiteMgCO3
Cⓘ MalachiteCu2(CO3)(OH)2
Cⓘ Dolomite var. Iron-bearing DolomiteCa(Mg,Fe)(CO3)2
OOxygen
Oⓘ AlbiteNa(AlSi3O8)
Oⓘ AnnabergiteNi3(AsO4)2 · 8H2O
Oⓘ AzuriteCu3(CO3)2(OH)2
Oⓘ CalciteCaCO3
Oⓘ Choloalite(Cu,Sb)3(Pb,Ca)3(TeO3)6Cl
Oⓘ DolomiteCaMg(CO3)2
Oⓘ Muscovite var. FuchsiteK(Al,Cr)3Si3O10(OH)2
Oⓘ Goethiteα-Fe3+O(OH)
Oⓘ HematiteFe2O3
Oⓘ KeystoneiteMg0.5Ni2+Fe3+(Te4+O3)3 · 4.5H2O
Oⓘ KuranakhitePbMn4+Te6+O6
Oⓘ MagnesiteMgCO3
Oⓘ MalachiteCu2(CO3)(OH)2
Oⓘ MimetitePb5(AsO4)3Cl
Oⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Oⓘ Muscovite var. PhengiteKAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Oⓘ QuartzSiO2
Oⓘ TalcMg3Si4O10(OH)2
Oⓘ McalpineiteCu3(Te6+O6)
Oⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Oⓘ Muscovite var. MaripositeK(Al,Cr)2(Al,Si)4O10(OH)2
Oⓘ Dolomite var. Iron-bearing DolomiteCa(Mg,Fe)(CO3)2
Oⓘ Serpentine SubgroupD3[Si2O5](OH)4
NaSodium
Naⓘ AlbiteNa(AlSi3O8)
MgMagnesium
Mgⓘ DolomiteCaMg(CO3)2
Mgⓘ KeystoneiteMg0.5Ni2+Fe3+(Te4+O3)3 · 4.5H2O
Mgⓘ MagnesiteMgCO3
Mgⓘ Muscovite var. PhengiteKAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Mgⓘ TalcMg3Si4O10(OH)2
Mgⓘ Dolomite var. Iron-bearing DolomiteCa(Mg,Fe)(CO3)2
AlAluminium
Alⓘ AlbiteNa(AlSi3O8)
Alⓘ Muscovite var. FuchsiteK(Al,Cr)3Si3O10(OH)2
Alⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Alⓘ Muscovite var. PhengiteKAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Alⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Alⓘ Muscovite var. MaripositeK(Al,Cr)2(Al,Si)4O10(OH)2
SiSilicon
Siⓘ AlbiteNa(AlSi3O8)
Siⓘ Muscovite var. FuchsiteK(Al,Cr)3Si3O10(OH)2
Siⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Siⓘ Muscovite var. PhengiteKAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Siⓘ QuartzSiO2
Siⓘ TalcMg3Si4O10(OH)2
Siⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Siⓘ Muscovite var. MaripositeK(Al,Cr)2(Al,Si)4O10(OH)2
Siⓘ Serpentine SubgroupD3[Si2O5](OH)4
SSulfur
Sⓘ AcanthiteAg2S
Sⓘ ChalcopyriteCuFeS2
Sⓘ GalenaPbS
Sⓘ GersdorffiteNiAsS
Sⓘ MilleriteNiS
Sⓘ OwyheeiteAg3Pb10Sb11S28
Sⓘ PyrargyriteAg3SbS3
Sⓘ PyriteFeS2
Sⓘ PyrrhotiteFe1-xS
Sⓘ SphaleriteZnS
Sⓘ Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
ClChlorine
Clⓘ ChlorargyriteAgCl
Clⓘ Choloalite(Cu,Sb)3(Pb,Ca)3(TeO3)6Cl
Clⓘ MimetitePb5(AsO4)3Cl
KPotassium
Kⓘ Muscovite var. FuchsiteK(Al,Cr)3Si3O10(OH)2
Kⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Kⓘ Muscovite var. PhengiteKAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Kⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Kⓘ Muscovite var. MaripositeK(Al,Cr)2(Al,Si)4O10(OH)2
CaCalcium
Caⓘ CalciteCaCO3
Caⓘ Choloalite(Cu,Sb)3(Pb,Ca)3(TeO3)6Cl
Caⓘ DolomiteCaMg(CO3)2
Caⓘ Dolomite var. Iron-bearing DolomiteCa(Mg,Fe)(CO3)2
CrChromium
Crⓘ Muscovite var. FuchsiteK(Al,Cr)3Si3O10(OH)2
Crⓘ Muscovite var. MaripositeK(Al,Cr)2(Al,Si)4O10(OH)2
MnManganese
Mnⓘ KuranakhitePbMn4+Te6+O6
FeIron
Feⓘ ChalcopyriteCuFeS2
Feⓘ Goethiteα-Fe3+O(OH)
Feⓘ HematiteFe2O3
Feⓘ KeystoneiteMg0.5Ni2+Fe3+(Te4+O3)3 · 4.5H2O
Feⓘ Muscovite var. PhengiteKAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Feⓘ PyriteFeS2
Feⓘ PyrrhotiteFe1-xS
Feⓘ Dolomite var. Iron-bearing DolomiteCa(Mg,Fe)(CO3)2
CoCobalt
Coⓘ SkutteruditeCoAs3
NiNickel
Niⓘ AnnabergiteNi3(AsO4)2 · 8H2O
Niⓘ GersdorffiteNiAsS
Niⓘ KeystoneiteMg0.5Ni2+Fe3+(Te4+O3)3 · 4.5H2O
Niⓘ MeloniteNiTe2
Niⓘ MilleriteNiS
CuCopper
Cuⓘ AzuriteCu3(CO3)2(OH)2
Cuⓘ ChalcopyriteCuFeS2
Cuⓘ Choloalite(Cu,Sb)3(Pb,Ca)3(TeO3)6Cl
Cuⓘ MalachiteCu2(CO3)(OH)2
Cuⓘ Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
Cuⓘ McalpineiteCu3(Te6+O6)
ZnZinc
Znⓘ SphaleriteZnS
AsArsenic
Asⓘ AnnabergiteNi3(AsO4)2 · 8H2O
Asⓘ GersdorffiteNiAsS
Asⓘ MimetitePb5(AsO4)3Cl
Asⓘ SkutteruditeCoAs3
AgSilver
Agⓘ AcanthiteAg2S
Agⓘ ChlorargyriteAgCl
Agⓘ Gold var. Electrum(Au,Ag)
Agⓘ HessiteAg2Te
Agⓘ OwyheeiteAg3Pb10Sb11S28
Agⓘ PetziteAg3AuTe2
Agⓘ PyrargyriteAg3SbS3
Agⓘ SilverAg
SbAntimony
Sbⓘ Choloalite(Cu,Sb)3(Pb,Ca)3(TeO3)6Cl
Sbⓘ OwyheeiteAg3Pb10Sb11S28
Sbⓘ PyrargyriteAg3SbS3
Sbⓘ Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
TeTellurium
Teⓘ AltaitePbTe
Teⓘ Choloalite(Cu,Sb)3(Pb,Ca)3(TeO3)6Cl
Teⓘ HessiteAg2Te
Teⓘ KeystoneiteMg0.5Ni2+Fe3+(Te4+O3)3 · 4.5H2O
Teⓘ KuranakhitePbMn4+Te6+O6
Teⓘ MeloniteNiTe2
Teⓘ PetziteAg3AuTe2
Teⓘ McalpineiteCu3(Te6+O6)
AuGold
Auⓘ Gold var. Electrum(Au,Ag)
Auⓘ GoldAu
Auⓘ PetziteAg3AuTe2
PbLead
Pbⓘ AltaitePbTe
Pbⓘ Choloalite(Cu,Sb)3(Pb,Ca)3(TeO3)6Cl
Pbⓘ GalenaPbS
Pbⓘ KuranakhitePbMn4+Te6+O6
Pbⓘ MimetitePb5(AsO4)3Cl
Pbⓘ OwyheeiteAg3Pb10Sb11S28

Other Databases

Link to USGS MRDS:10077964

Other Regions, Features and Areas containing this locality

North America PlateTectonic Plate
USA

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References

(n.d.) Minerals Availability System (MAS), U.S. Bureau of Mines.file ID #0061090645
Irelan, William, Jr. (1890b), Tenth annual report of the State Mineralogist: California Mining Bureau. (Report 10), 983 pp.: 44.
Logan, Clarence August (1928), Tuolumne County: California Mining Bureau. (Report 24): 24: 32.
Mine Safety and Health Administration report (1981) (June, 1981).
Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc.
Weir, R.H.; Kerrick, D.M. (1987) Mineralogic, fluid inclusion, and stable isotope studies of several gold mines in the Mother Lode, Tuolumne and Mariposa counties, California. Economic Geology: 82(2): 328-344.
Randol Mining Directory (1994-1995), U.S. Mines and Mining Companies: 233.
Roberts, Andrew C., Scott Ercit, T., Criddle, Alan J., Jones, Gary C., Scott Williams, R., Cureton, Forrest F., Jensen, Martin C. (1994) Mcalpineite, Cu3TeO6·H2O, a new mineral from the McAlpine mine, Tuolumne County, California, and from the Centennial Eureka mine, Juab County, Utah. Mineralogical Magazine, 58 (392) 417-424 doi:10.1180/minmag.1994.058.392.07
Mandarino, Joseph A. (1996) Abstracts of New Mineral Descriptions. The Mineralogical Record, 27 (2) 115-120
Randol Mining Directory (1996-1997), Cal Sierra Development: 161.
Mineralogical Magazine (1997): 90-94. (? - reference presented as "NM")
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
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