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Lucky Lucy Mine, Darwin, Darwin District, Darwin Hills, Inyo Co., California, USAi
Regional Level Types
Lucky Lucy MineMine
Darwin- not defined -
Darwin DistrictMining District
Darwin HillsGroup of Hills
Inyo Co.County
CaliforniaState
USACountry

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Key
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Latitude & Longitude (WGS84):
36° 16' 24'' North , 117° 34' 30'' West
Latitude & Longitude (decimal):
Locality type:
Nearest Settlements:
PlacePopulationDistance
Olancha192 (2015)38.8km


A former tiny Bi-Zn-Cu mine located in sec. 19, T19S, R41E (MDM), 1.5 km (1.0 mile) ENE of Darwin, near the Custer Mine. Worked in the 1950’s when the larger mines in the area were working. MRDS database stated accuracy for this location is . Once the small copper-zinc ore body was mined out, the mine was abandoned. Corrected description and position N36.27318 W117.57504 by Richard Muster, courtesy Gail Dunning, Walt Margerum and Robert Hously.

NOTE: This mine is not listed in the USGS MRDS database.

The ore body was unusual in the fact that, in an area of Pb-Ag and W mines, the ores were predominately Cu & Zn. The rocks in this near surface mine are weathered interbedded calc-hornfels and altered to tactite. Local rocks include .

It is rather different from the nearby mines and the minerals it contained were also distinctly different. The Brochantite and Serpierite were well crystallized, and the Serpierite find represented the first California locality for this mineral.

The mine is located between the St. Charles Mine and the Custer Mine, but is closer to the Custer than the St. Charles. To get there you need to hike approximately 2000 feet down (eastwards) Custer Canyon. After you pass the St. Charles loading chute you will see the Custer mine to your left. As you start up the side road to the Custer mine you will see a small road leading to your left. This is the track to the Lucky Lucy mine. There is some lumber on the side of the hill below the mine. The pit is not visible until you are almost on top of it.

Workings include surface openings comprised only of a single pit about 4 meters deep extending into the side of the hill.

Some visitors reporting minerals from the Custer mine might have been actually at the Lucky Lucy mine.

Regions containing this locality

North America PlateTectonic Plate

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


23 valid minerals.

Detailed Mineral List:

Andradite
Formula: Ca3Fe3+2(SiO4)3
Reference: Mineral News: 16 (9): 1
Aurichalcite
Formula: (Zn,Cu)5(CO3)2(OH)6
Reference: Gail E. Dunning, Yves MoÎlo, and Joseph F. Cooper, Jr. (2000) Ag-Cu-Pb-Bi Sulfosalts New to Darwin, Inyo County, California; Margerum, W. (2002), Bulletin of the Mineralogical Society of Southern California.
Bismutite
Formula: (BiO)2CO3
Reference: Gail E. Dunning, Yves MoÎlo, and Joseph F. Cooper, Jr. (2000) Ag-Cu-Pb-Bi Sulfosalts New to Darwin, Inyo County, California; Margerum, W. (2002), Bulletin of the Mineralogical Society of Southern California.
Brochantite
Formula: Cu4(SO4)(OH)6
Reference: Pemberton, H. Earl (1983), Minerals of California: 299; Mineral News: 16 (9): 1.; Gail E. Dunning, Yves MoÎlo, and Joseph F. Cooper, Jr. (2000) Ag-Cu-Pb-Bi Sulfosalts New to Darwin, Inyo County, California; Margerum, W. (2002), Bulletin of the Mineralogical Society of Southern California.
Calcite
Formula: CaCO3
Reference: Mineral News: 16 (9): 1
Chalcopyrite
Formula: CuFeS2
Reference: Gail E. Dunning, Yves MoÎlo, and Joseph F. Cooper, Jr. (2000) Ag-Cu-Pb-Bi Sulfosalts New to Darwin, Inyo County, California; Margerum, W. (2002), Bulletin of the Mineralogical Society of Southern California.
Chrysocolla
Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Reference: Mineral News: 16 (9): 1; Margerum, W. (2002), Bulletin of the Mineralogical Society of Southern California.
Cupropavonite
Formula: Cu0.9Ag0.5Pb0.6Bi2.5S5
Reference: Mineral News: 16 (9): 1; Gail E. Dunning, Yves MoÎlo, and Joseph F. Cooper, Jr. (2000) Ag-Cu-Pb-Bi Sulfosalts New to Darwin, Inyo County, California; Dunning, G.E., Moelo, Yves, Roberts, A.c., & Cooper, J. F (2000)., Ag-Cu-Pb-Bi Sulfosalts New To Darwin, Inyo County, California. Occasional Web Publication of the Bay Area Mineralogists, 2000
Galenobismutite
Formula: PbBi2S4
Reference: Pemberton, H. Earl (1983), Minerals of California: 137.
Goethite
Formula: α-Fe3+O(OH)
Reference: Mineral News: 16 (9): 1
Gustavite
Formula: AgPbBi3S6
Reference: Mineral News: 16 (9): 1; Gail E. Dunning, Yves MoÎlo, and Joseph F. Cooper, Jr. (2000) Ag-Cu-Pb-Bi Sulfosalts New to Darwin, Inyo County, California; Margerum, W. (2002), Bulletin of the Mineralogical Society of Southern California.
Hemimorphite
Formula: Zn4Si2O7(OH)2 · H2O
Reference: Pemberton, H. Earl (1983), Minerals of California: 299.; Gail E. Dunning, Yves MoÎlo, and Joseph F. Cooper, Jr. (2000) Ag-Cu-Pb-Bi Sulfosalts New to Darwin, Inyo County, California; Margerum, W. (2002), Bulletin of the Mineralogical Society of Southern California.
Heyrovskýite
Formula: Pb6Bi2S9
Reference: Mineral News: 16 (9): 1; Gail E. Dunning, Yves MoÎlo, and Joseph F. Cooper, Jr. (2000) Ag-Cu-Pb-Bi Sulfosalts New to Darwin, Inyo County, California; Margerum, W. (2002), Bulletin of the Mineralogical Society of Southern California.
Junoite
Formula: Cu2Pb3Bi8(S,Se)16
Reference: Mineral News: 16 (9): 1; Gail E. Dunning, Yves MoÎlo, and Joseph F. Cooper, Jr. (2000) Ag-Cu-Pb-Bi Sulfosalts New to Darwin, Inyo County, California; Margerum, W. (2002), Bulletin of the Mineralogical Society of Southern California.
'Limonite'
Formula: (Fe,O,OH,H2O)
Reference: Margerum, W. (2002), Bulletin of the Mineralogical Society of Southern California.
Pavonite
Formula: AgBi3S5
Reference: Mineral News: 16 (9): 1; Gail E. Dunning, Yves MoÎlo, and Joseph F. Cooper, Jr. (2000) Ag-Cu-Pb-Bi Sulfosalts New to Darwin, Inyo County, California; Cooper; Fen and Dunning, Gail (2003) : Occasional Publication of the Bay Area Mineralogists, February, 2003.
Pyrite
Formula: FeS2
Reference: Pemberton, H. Earl (1983), Minerals of California: 137.; Gail E. Dunning, Yves MoÎlo, and Joseph F. Cooper, Jr. (2000) Ag-Cu-Pb-Bi Sulfosalts New to Darwin, Inyo County, California; Cooper; Fen and Dunning, Gail (2003) : Occasional Publication of the Bay Area Mineralogists, February, 2003.
Rosasite
Formula: (Cu,Zn)2(CO3)(OH)2
Reference: Gail E. Dunning, Yves MoÎlo, and Joseph F. Cooper, Jr. (2000) Ag-Cu-Pb-Bi Sulfosalts New to Darwin, Inyo County, California; Cooper; Fen and Dunning, Gail (2003) : Occasional Publication of the Bay Area Mineralogists, February, 2003.
Scheelite
Formula: Ca(WO4)
Reference: Mineral News: 16 (9): 1
Serpierite
Formula: Ca(Cu,Zn)4(SO4)2(OH)6 · 3H2O
Habit: Acicular.
Description: Occurs as acicular crystals in radiating sprays.
Reference: Pemberton, H. Earl (1983), Minerals of California: 299; Mineral News: 16 (9): 1; Gail E. Dunning, Yves MoÎlo, and Joseph F. Cooper, Jr. (2000) Ag-Cu-Pb-Bi Sulfosalts New to Darwin, Inyo County, California; Cooper; Fen and Dunning, Gail (2003) : Occasional Publication of the Bay Area Mineralogists, February, 2003.
Sphalerite
Formula: ZnS
Reference: Gail E. Dunning, Yves MoÎlo, and Joseph F. Cooper, Jr. (2000) Ag-Cu-Pb-Bi Sulfosalts New to Darwin, Inyo County, California; Cooper; Fen and Dunning, Gail (2003) : Occasional Publication of the Bay Area Mineralogists, February, 2003.
Tetradymite
Formula: Bi2Te2S
Reference: Gail E. Dunning, Yves MoÎlo, and Joseph F. Cooper, Jr. (2000) Ag-Cu-Pb-Bi Sulfosalts New to Darwin, Inyo County, California; Cooper; Fen and Dunning, Gail (2003) : Occasional Publication of the Bay Area Mineralogists, February, 2003.
Tremolite
Formula: ☐{Ca2}{Mg5}(Si8O22)(OH)2
Reference: Cooper; Fen and Dunning, Gail (2003) : Occasional Publication of the Bay Area Mineralogists, February, 2003.
Vikingite
Formula: Ag5Pb8Bi13S30
Reference: Mineral News: 16 (9): 1; Gail E. Dunning, Yves MoÎlo, and Joseph F. Cooper, Jr. (2000) Ag-Cu-Pb-Bi Sulfosalts New to Darwin, Inyo County, California; Dunning, G.E., Moelo, Yves, Roberts, A.c., & Cooper, J. F (2000)., Ag-Cu-Pb-Bi Sulfosalts New To Darwin, Inyo County, California. Occasional Web Publication of the Bay Area Mineralogists, 2000

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Chalcopyrite2.CB.10aCuFeS2
Cupropavonite2.JA.05aCu0.9Ag0.5Pb0.6Bi2.5S5
Galenobismutite2.JC.25ePbBi2S4
Gustavite2.JB.40aAgPbBi3S6
Heyrovskýite2.JB.40bPb6Bi2S9
Junoite2.JB.25aCu2Pb3Bi8(S,Se)16
Pavonite2.JA.05aAgBi3S5
Pyrite2.EB.05aFeS2
Sphalerite2.CB.05aZnS
Tetradymite2.DC.05Bi2Te2S
Vikingite2.JB.40aAg5Pb8Bi13S30
Group 4 - Oxides and Hydroxides
Goethite4.00.α-Fe3+O(OH)
Group 5 - Nitrates and Carbonates
Aurichalcite5.BA.15(Zn,Cu)5(CO3)2(OH)6
Bismutite5.BE.25(BiO)2CO3
Calcite5.AB.05CaCO3
Rosasite5.BA.10(Cu,Zn)2(CO3)(OH)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Brochantite7.BB.25Cu4(SO4)(OH)6
Scheelite7.GA.05Ca(WO4)
Serpierite7.DD.30Ca(Cu,Zn)4(SO4)2(OH)6 · 3H2O
Group 9 - Silicates
Andradite9.AD.25Ca3Fe3+2(SiO4)3
Chrysocolla9.ED.20Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Hemimorphite9.BD.10Zn4Si2O7(OH)2 · H2O
Tremolite9.DE.10☐{Ca2}{Mg5}(Si8O22)(OH)2
Unclassified Minerals, Rocks, etc.
'Limonite'-(Fe,O,OH,H2O)

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmXp, with m:p = 1:1
Sphalerite2.8.2.1ZnS
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 2:3
Tetradymite2.11.7.1Bi2Te2S
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
Group 3 - SULFOSALTS
3 <ø < 4
Heyrovskýite3.3.3.1Pb6Bi2S9
ø = 3
Gustavite3.4.15.3AgPbBi3S6
2 < ø < 2.49
Vikingite3.6.11.1Ag5Pb8Bi13S30
ø = 2
Galenobismutite3.7.9.1PbBi2S4
Junoite3.7.14.1Cu2Pb3Bi8(S,Se)16
1 < ø < 2
Cupropavonite3.8.10.6Cu0.9Ag0.5Pb0.6Bi2.5S5
Pavonite3.8.10.1AgBi3S5
Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
XO(OH)
Goethite6.1.1.2α-Fe3+O(OH)
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Bismutite16a.3.5.1(BiO)2CO3
Rosasite16a.3.1.2(Cu,Zn)2(CO3)(OH)2
Aurichalcite16a.4.2.1(Zn,Cu)5(CO3)2(OH)6
Group 30 - ANHYDROUS SULFATES CONTAINING HYDROXYL OR HALOGEN
(AB)m(XO4)pZq, where m:p>2:1
Brochantite30.1.3.1Cu4(SO4)(OH)6
Group 31 - HYDRATED SULFATES CONTAINING HYDROXYL OR HALOGEN
(AB)5(XO4)2Zq·xH2O
Serpierite31.6.2.1Ca(Cu,Zn)4(SO4)2(OH)6 · 3H2O
Group 48 - ANHYDROUS MOLYBDATES AND TUNGSTATES
AXO4
Scheelite48.1.2.1Ca(WO4)
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in [6] and >[6] coordination
Andradite51.4.3b.1Ca3Fe3+2(SiO4)3
Group 56 - SOROSILICATES Si2O7 Groups, With Additional O, OH, F and H2O
Si2O7 Groups and O, OH, F, and H2O with cations in [4] coordination
Hemimorphite56.1.2.1Zn4Si2O7(OH)2 · H2O
Group 66 - INOSILICATES Double-Width,Unbranched Chains,(W=2)
Amphiboles - Mg-Fe-Mn-Li subgroup
Tremolite66.1.3a.1☐{Ca2}{Mg5}(Si8O22)(OH)2
Group 74 - PHYLLOSILICATES Modulated Layers
Modulated Layers with joined strips
Chrysocolla74.3.2.1Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Unclassified Minerals, Mixtures, etc.
'Limonite'-(Fe,O,OH,H2O)

List of minerals for each chemical element

HHydrogen
H BrochantiteCu4(SO4)(OH)6
H SerpieriteCa(Cu,Zn)4(SO4)2(OH)6 · 3H2O
H Goethiteα-Fe3+O(OH)
H ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
H HemimorphiteZn4Si2O7(OH)2 · H2O
H Rosasite(Cu,Zn)2(CO3)(OH)2
H Aurichalcite(Zn,Cu)5(CO3)2(OH)6
H Limonite(Fe,O,OH,H2O)
H Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
CCarbon
C CalciteCaCO3
C Rosasite(Cu,Zn)2(CO3)(OH)2
C Aurichalcite(Zn,Cu)5(CO3)2(OH)6
C Bismutite(BiO)2CO3
OOxygen
O BrochantiteCu4(SO4)(OH)6
O SerpieriteCa(Cu,Zn)4(SO4)2(OH)6 · 3H2O
O Goethiteα-Fe3+O(OH)
O ScheeliteCa(WO4)
O AndraditeCa3Fe23+(SiO4)3
O CalciteCaCO3
O ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
O HemimorphiteZn4Si2O7(OH)2 · H2O
O Rosasite(Cu,Zn)2(CO3)(OH)2
O Aurichalcite(Zn,Cu)5(CO3)2(OH)6
O Bismutite(BiO)2CO3
O Limonite(Fe,O,OH,H2O)
O Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
MgMagnesium
Mg Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
AlAluminium
Al ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
SiSilicon
Si AndraditeCa3Fe23+(SiO4)3
Si ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Si HemimorphiteZn4Si2O7(OH)2 · H2O
Si Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
SSulfur
S BrochantiteCu4(SO4)(OH)6
S SerpieriteCa(Cu,Zn)4(SO4)2(OH)6 · 3H2O
S JunoiteCu2Pb3Bi8(S,Se)16
S HeyrovskýitePb6Bi2S9
S VikingiteAg5Pb8Bi13S30
S GustaviteAgPbBi3S6
S PavoniteAgBi3S5
S CupropavoniteCu0.9Ag0.5Pb0.6Bi2.5S5
S TetradymiteBi2Te2S
S GalenobismutitePbBi2S4
S PyriteFeS2
S ChalcopyriteCuFeS2
S SphaleriteZnS
CaCalcium
Ca SerpieriteCa(Cu,Zn)4(SO4)2(OH)6 · 3H2O
Ca ScheeliteCa(WO4)
Ca AndraditeCa3Fe23+(SiO4)3
Ca CalciteCaCO3
Ca Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
FeIron
Fe Goethiteα-Fe3+O(OH)
Fe AndraditeCa3Fe23+(SiO4)3
Fe PyriteFeS2
Fe ChalcopyriteCuFeS2
Fe Limonite(Fe,O,OH,H2O)
CuCopper
Cu BrochantiteCu4(SO4)(OH)6
Cu SerpieriteCa(Cu,Zn)4(SO4)2(OH)6 · 3H2O
Cu JunoiteCu2Pb3Bi8(S,Se)16
Cu CupropavoniteCu0.9Ag0.5Pb0.6Bi2.5S5
Cu ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Cu ChalcopyriteCuFeS2
Cu Rosasite(Cu,Zn)2(CO3)(OH)2
Cu Aurichalcite(Zn,Cu)5(CO3)2(OH)6
ZnZinc
Zn SerpieriteCa(Cu,Zn)4(SO4)2(OH)6 · 3H2O
Zn HemimorphiteZn4Si2O7(OH)2 · H2O
Zn SphaleriteZnS
Zn Rosasite(Cu,Zn)2(CO3)(OH)2
Zn Aurichalcite(Zn,Cu)5(CO3)2(OH)6
SeSelenium
Se JunoiteCu2Pb3Bi8(S,Se)16
AgSilver
Ag VikingiteAg5Pb8Bi13S30
Ag GustaviteAgPbBi3S6
Ag PavoniteAgBi3S5
Ag CupropavoniteCu0.9Ag0.5Pb0.6Bi2.5S5
TeTellurium
Te TetradymiteBi2Te2S
WTungsten
W ScheeliteCa(WO4)
PbLead
Pb JunoiteCu2Pb3Bi8(S,Se)16
Pb HeyrovskýitePb6Bi2S9
Pb VikingiteAg5Pb8Bi13S30
Pb GustaviteAgPbBi3S6
Pb CupropavoniteCu0.9Ag0.5Pb0.6Bi2.5S5
Pb GalenobismutitePbBi2S4
BiBismuth
Bi JunoiteCu2Pb3Bi8(S,Se)16
Bi HeyrovskýitePb6Bi2S9
Bi VikingiteAg5Pb8Bi13S30
Bi GustaviteAgPbBi3S6
Bi PavoniteAgBi3S5
Bi CupropavoniteCu0.9Ag0.5Pb0.6Bi2.5S5
Bi TetradymiteBi2Te2S
Bi GalenobismutitePbBi2S4
Bi Bismutite(BiO)2CO3

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

Quaternary - Miocene
0 - 23.03 Ma



ID: 3185380
Cenozoic sedimentary rocks

Age: Cenozoic (0 - 23.03 Ma)

Lithology: Sedimentary rocks

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]

Cisuralian - Mississippian
272.95 - 358.9 Ma



ID: 2908410
Carboniferous marine rocks, unit 2 (SE California Carbonate Assemblage)

Age: Paleozoic (272.95 - 358.9 Ma)

Stratigraphic Name: Anvil Spring Formation; Bird Spring Formation; Tihvipah Limestone; Monte Cristo Limestone; Santa Rosa Hills Limestone; Perdido Group; Stone Canyon Formation; Tin Mountain Limestone; Indian Springs Formation

Description: Shale, sandstone, conglomerate, limestone, dolomite, chert, hornfels, marble, quartzite; in part pyroclastic rocks

Comments: Southeastern California carbonate assemblage (eastern Mojave Desert and southeastern Death Valley area). Consists primarily of limestone with minor siltstone and sandstone.Includes some rocks of Early Permian age, Original map source: Saucedo, G.J., Bedford, D.R., Raines, G.L., Miller, R.J., and Wentworth, C.M., 2000, GIS Data for the Geologic Map of California, California Department of Conservation, Division of Mines and Geology, CD-ROM 2000-07, scale 1:750,000.

Lithology: Major:{limestone}, Minor:{sandstone,siltstone mudstone}

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)
Knopf, Adolph (1914) The Darwin Lead-Silver Mining District California, USGS Bulletin 580-A, 19 p.
Norman, L.A., and Stewart, R.A.(1951), Mines and Mineral Resources of Inyo County, California, California Division of Mines and Geology Report 47): 47(1) (January 1951).
Hall, Wayne Everett & E.M. Mackevett (1958), Economic geology of the Darwin quadrangle, Inyo County, California: Calif Division of Mines Special Report 51: 65.
Hall, Wayne Everett & Edward M. Mackevett (1963), Geology and ore deposits of the Darwin quadrangle, Inyo County, California: USGS Professional Paper 368: 59, 76, 77.
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 106, 107.
Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 102 (map 3-6), 125-126, 137, 234, 299, 333.
Stolburg, C. S. (1984) The Mines and Minerals of Darwin, California, The Mineralogical Record: 15(1): 5-18.
Randol Mining Directory (1990).
Dunning, G.E., Moelo, Yves, Roberts, A.c., & Cooper, J. F (2000)., Ag-Cu-Pb-Bi Sulfosalts New To Darwin, Inyo County, California. Occasional Web Publication of the Bay Area Mineralogists, 2000.
Margerum, W. (2002), Bulletin of the Mineralogical Society of Southern California.
Cooper; Fen and Dunning, Gail (2003) : Occasional Publication of the Bay Area Mineralogists, February, 2003.
Margerum, W. (2004) The Darwin Tungsten Area Part II: Mines and Mineralogy in the Bulletin of the Mineralogical Society of Southern California Vol. 74(5).


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