Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Defiance Mine, Darwin Mine (Anaconda; Bernon Mine; Defiance Mine; Essex Mine; Independence Mine; Intermediate Mine; Rip Van Winkle Mine; Thompson Mine), Darwin, Darwin Mining District, Darwin Hills, Inyo County, California, USAi
Regional Level Types
Defiance MineMine
Darwin Mine (Anaconda; Bernon Mine; Defiance Mine; Essex Mine; Independence Mine; Intermediate Mine; Rip Van Winkle Mine; Thompson Mine)Mine
DarwinUnincorporated Community
Darwin Mining DistrictMining District
Darwin HillsGroup of Hills
Inyo CountyCounty
CaliforniaState
USACountry

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Latitude & Longitude (WGS84):
36° 16' 54'' North , 117° 36' 33'' West
Latitude & Longitude (decimal):
Type:
Nearest Settlements:
PlacePopulationDistance
Olancha192 (2015)35.7km
Lone Pine2,035 (2015)54.4km
Mindat Locality ID:
3473
Long-form identifier:
mindat:1:2:3473:2
GUID (UUID V4):
0


A former Ag-W-Au-Cu-Zn-Pb mine located in the SW¼ sec. 13 & in sec. 14 (?), T19S, R40E, MDM, 2.3 km (1.4 miles) NW of Darwin. MRDS database stated accuracy for this location is 1,000 meters.

NOTE: This is one of several mines incorporated into the "Darwin Mine" of the Anaconda Corp. It was also later incorporated into the group termed the "Darwin Mines," owned by Mexicanus Colorado Inc.

In 1945 The Anaconda Co. purchased the Bernon Defiance, Driver, Essex, Independence, Lane, Lucky Jim, Promontory, Rip Van Winkle and Thompson mines, and other small properties In the Darwin quadrangle and the Columbia mine at the south end of the Darwin Hills in the Coso Peak quadrangle, and they have operated some of them from 1945 to 1955.

The Company „Project Darwin LLC“ acquired the Darwin mines and 58 patented mining claims in 1996. The company is looking for investors to re-start the Darwin mines.

Local rocks include Quaternary alluvium and marine deposits.

Workings include unspecified underground openings.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


32 valid minerals.

Detailed Mineral List:

Acanthite
Formula: Ag2S
'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
Aurichalcite
Formula: (Zn,Cu)5(CO3)2(OH)6
Description: Occurs as fibrous, radiating clusters and coatings.
Baryte
Formula: BaSO4
Boulangerite ?
Formula: Pb5Sb4S11
Description: A specimen in the University of California, Berkeley, collection was tentatively identified as boulangerite.
Braunite
Formula: Mn2+Mn3+6(SiO4)O8
Calcite
Formula: CaCO3
Cerussite
Formula: PbCO3
Chalcopyrite
Formula: CuFeS2
Chrysocolla
Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Covellite
Formula: CuS
Creedite
Formula: Ca3Al2(SO4)(OH)2F8 · 2H2O
Diopside
Formula: CaMgSi2O6
Fluorite
Formula: CaF2
Galena
Formula: PbS
Grossular
Formula: Ca3Al2(SiO4)3
Gypsum
Formula: CaSO4 · 2H2O
Description: Alters to anhydrite upon removal.
Hemimorphite
Formula: Zn4Si2O7(OH)2 · H2O
Colour: Colorless
Description: Occurs as crusts with occasional crystals.
Hydrozincite
Formula: Zn5(CO3)2(OH)6
Habit: Blade-like.
Colour: Colorless, white
Linarite
Formula: PbCu(SO4)(OH)2
Habit: Thin platy.
Malachite
Formula: Cu2(CO3)(OH)2
Montmorillonite
Formula: (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Colour: Pale greenish yellow
Description: Occurs as masses.
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Muscovite var. Sericite
Formula: KAl2(AlSi3O10)(OH)2
Native Selenium
Formula: Se
Native Sulphur
Formula: S8
Orthoclase
Formula: K(AlSi3O8)
Plumbojarosite
Formula: Pb0.5Fe3+3(SO4)2(OH)6
Pyrite
Formula: FeS2
Pyrolusite
Formula: Mn4+O2
Smithsonite
Formula: ZnCO3
Sphalerite
Formula: ZnS
Wollastonite
Formula: Ca3(Si3O9)
Wulfenite
Formula: Pb(MoO4)

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Native Sulphur1.CC.05S8
Native Selenium1.CC.10Se
Group 2 - Sulphides and Sulfosalts
Acanthite2.BA.35Ag2S
Covellite2.CA.05aCuS
Sphalerite2.CB.05aZnS
Chalcopyrite2.CB.10aCuFeS2
Galena2.CD.10PbS
Pyrite2.EB.05aFeS2
Boulangerite ?2.HC.15Pb5Sb4S11
Group 3 - Halides
Fluorite3.AB.25CaF2
Creedite3.CG.15Ca3Al2(SO4)(OH)2F8 · 2H2O
Group 4 - Oxides and Hydroxides
Pyrolusite4.DB.05Mn4+O2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Smithsonite5.AB.05ZnCO3
Cerussite5.AB.15PbCO3
Malachite5.BA.10Cu2(CO3)(OH)2
Aurichalcite5.BA.15(Zn,Cu)5(CO3)2(OH)6
Hydrozincite5.BA.15Zn5(CO3)2(OH)6
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Baryte7.AD.35BaSO4
Plumbojarosite7.BC.10Pb0.5Fe3+3(SO4)2(OH)6
Linarite7.BC.65PbCu(SO4)(OH)2
Gypsum7.CD.40CaSO4 · 2H2O
Wulfenite7.GA.05Pb(MoO4)
Group 9 - Silicates
Grossular9.AD.25Ca3Al2(SiO4)3
Braunite9.AG.05Mn2+Mn3+6(SiO4)O8
Hemimorphite9.BD.10Zn4Si2O7(OH)2 · H2O
Diopside9.DA.15CaMgSi2O6
Wollastonite9.DG.05Ca3(Si3O9)
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
var. Sericite9.EC.15KAl2(AlSi3O10)(OH)2
Montmorillonite9.EC.40(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Chrysocolla9.ED.20Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Orthoclase9.FA.30K(AlSi3O8)
Unclassified
'Apatite'-Ca5(PO4)3(Cl/F/OH)

List of minerals for each chemical element

HHydrogen
H Aurichalcite(Zn,Cu)5(CO3)2(OH)6
H ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
H CreediteCa3Al2(SO4)(OH)2F8 · 2H2O
H GypsumCaSO4 · 2H2O
H HemimorphiteZn4Si2O7(OH)2 · H2O
H HydrozinciteZn5(CO3)2(OH)6
H LinaritePbCu(SO4)(OH)2
H MalachiteCu2(CO3)(OH)2
H MuscoviteKAl2(AlSi3O10)(OH)2
H Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
H PlumbojarositePb0.5Fe33+(SO4)2(OH)6
H Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
H ApatiteCa5(PO4)3(Cl/F/OH)
CCarbon
C Aurichalcite(Zn,Cu)5(CO3)2(OH)6
C CalciteCaCO3
C CerussitePbCO3
C HydrozinciteZn5(CO3)2(OH)6
C MalachiteCu2(CO3)(OH)2
C SmithsoniteZnCO3
OOxygen
O Aurichalcite(Zn,Cu)5(CO3)2(OH)6
O BaryteBaSO4
O BrauniteMn2+Mn63+(SiO4)O8
O CalciteCaCO3
O CerussitePbCO3
O ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
O CreediteCa3Al2(SO4)(OH)2F8 · 2H2O
O DiopsideCaMgSi2O6
O GrossularCa3Al2(SiO4)3
O GypsumCaSO4 · 2H2O
O HemimorphiteZn4Si2O7(OH)2 · H2O
O HydrozinciteZn5(CO3)2(OH)6
O LinaritePbCu(SO4)(OH)2
O MalachiteCu2(CO3)(OH)2
O MuscoviteKAl2(AlSi3O10)(OH)2
O Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
O OrthoclaseK(AlSi3O8)
O PlumbojarositePb0.5Fe33+(SO4)2(OH)6
O PyrolusiteMn4+O2
O SmithsoniteZnCO3
O WulfenitePb(MoO4)
O WollastoniteCa3(Si3O9)
O Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
O ApatiteCa5(PO4)3(Cl/F/OH)
FFluorine
F CreediteCa3Al2(SO4)(OH)2F8 · 2H2O
F FluoriteCaF2
F ApatiteCa5(PO4)3(Cl/F/OH)
NaSodium
Na Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
MgMagnesium
Mg DiopsideCaMgSi2O6
Mg Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
AlAluminium
Al ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Al CreediteCa3Al2(SO4)(OH)2F8 · 2H2O
Al GrossularCa3Al2(SiO4)3
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Al OrthoclaseK(AlSi3O8)
Al Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
SiSilicon
Si BrauniteMn2+Mn63+(SiO4)O8
Si ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Si DiopsideCaMgSi2O6
Si GrossularCa3Al2(SiO4)3
Si HemimorphiteZn4Si2O7(OH)2 · H2O
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Si OrthoclaseK(AlSi3O8)
Si WollastoniteCa3(Si3O9)
Si Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
PPhosphorus
P ApatiteCa5(PO4)3(Cl/F/OH)
SSulfur
S AcanthiteAg2S
S BaryteBaSO4
S BoulangeritePb5Sb4S11
S ChalcopyriteCuFeS2
S CovelliteCuS
S CreediteCa3Al2(SO4)(OH)2F8 · 2H2O
S GalenaPbS
S GypsumCaSO4 · 2H2O
S LinaritePbCu(SO4)(OH)2
S PlumbojarositePb0.5Fe33+(SO4)2(OH)6
S PyriteFeS2
S SphaleriteZnS
S Native SulphurS8
ClChlorine
Cl ApatiteCa5(PO4)3(Cl/F/OH)
KPotassium
K MuscoviteKAl2(AlSi3O10)(OH)2
K OrthoclaseK(AlSi3O8)
K Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
CaCalcium
Ca CalciteCaCO3
Ca CreediteCa3Al2(SO4)(OH)2F8 · 2H2O
Ca DiopsideCaMgSi2O6
Ca FluoriteCaF2
Ca GrossularCa3Al2(SiO4)3
Ca GypsumCaSO4 · 2H2O
Ca Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Ca WollastoniteCa3(Si3O9)
Ca ApatiteCa5(PO4)3(Cl/F/OH)
MnManganese
Mn BrauniteMn2+Mn63+(SiO4)O8
Mn PyrolusiteMn4+O2
FeIron
Fe ChalcopyriteCuFeS2
Fe PlumbojarositePb0.5Fe33+(SO4)2(OH)6
Fe PyriteFeS2
CuCopper
Cu Aurichalcite(Zn,Cu)5(CO3)2(OH)6
Cu ChalcopyriteCuFeS2
Cu ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Cu CovelliteCuS
Cu LinaritePbCu(SO4)(OH)2
Cu MalachiteCu2(CO3)(OH)2
ZnZinc
Zn Aurichalcite(Zn,Cu)5(CO3)2(OH)6
Zn HemimorphiteZn4Si2O7(OH)2 · H2O
Zn HydrozinciteZn5(CO3)2(OH)6
Zn SmithsoniteZnCO3
Zn SphaleriteZnS
SeSelenium
Se Native SeleniumSe
MoMolybdenum
Mo WulfenitePb(MoO4)
AgSilver
Ag AcanthiteAg2S
SbAntimony
Sb BoulangeritePb5Sb4S11
BaBarium
Ba BaryteBaSO4
PbLead
Pb BoulangeritePb5Sb4S11
Pb CerussitePbCO3
Pb GalenaPbS
Pb LinaritePbCu(SO4)(OH)2
Pb PlumbojarositePb0.5Fe33+(SO4)2(OH)6
Pb WulfenitePb(MoO4)

Other Databases

Link to USGS MRDS:10211828

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