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Agardite-(Y)

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Formula:
(Y,Ca)Cu
 
6
(AsO
 
4
)
 
2
(AsO
 
4
,HAsO
 
4
)(OH)
 
6
· 3H
 
2
O
System:HexagonalColour:bluish green to yellow ...
Lustre:Sub-Vitreous, Resinous, WaxyHardness:3 - 4
Member of:Mixite Group
Name:
Named by Jacques E. Dietrich, Marcel Orliac, and François Permingeat in 1969 for Jules Agard (November 21, 1916 Grenoble, France - February, 2003), geologist with the Bureau de Recherches Géologiques et Minières, Orléans, France.
This page provides mineralogical data about Agardite-(Y).

Classification of Agardite-(Y)

IMA status:Approved 1968
Strunz 8th edition ID:7/D.53-40
Nickel-Strunz 10th (pending) edition ID:8.DL.15

8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
L : With large and medium-sized cations, (OH, etc.):RO4 = 2:1
Dana 8th edition ID:42.5.1.2

42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
5 : (AB)7(XO4)3Zq·xH2O
Hey's CIM Ref.:20.4.13

20 : Arsenates (also arsenates with phosphate, but without other anions)
4 : Arsenates of Group III metals (Al, rare earths)
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Type Occurrence of Agardite-(Y)

Type Locality:Bou Skour Mine, Bou Skour District, Djebel Saghro (Jbel Saghro), Ouarzazate Province, Souss-Massa-Draâ Region, Morocco
Place of Conservation of Type Material:Serv. Geol. Maroc, Rabat, Morocco;
National School of Mines, Paris, France;
The Natural History Museum, London, England, 1978,24.
Year of Discovery:1968
Geological Setting of type material:Oxidation zone of copper veins or deposits

Occurrences of Agardite-(Y)

Geological Setting:In the oxidation zone of some copper deposits.

Physical Properties of Agardite-(Y)

Lustre:Sub-Vitreous, Resinous, Waxy
Diaphaneity (Transparency):Transparent, Translucent
Colour:bluish green to yellow green
Streak:greenish white
Hardness (Mohs):3 - 4
Tenacity:Brittle
Cleavage:None Observed
Density (measured):3.61 - 3.72 g/cm3
Density (calculated):3.66 g/cm3

Crystallography of Agardite-(Y)

Crystal System:Hexagonal
Class (H-M):6/m - Dipyramidal
Space Group:P63/m
Space Group Setting:P63/m
Cell Parameters:a = 13.583Å, c = 5.895Å
Ratio:a:c = 1 : 0.434
Unit Cell Volume:V 941.90 ų (Calculated from Unit Cell)
Z:2
Morphology:Crystals are acicular hexagonal prisms, elongated along [0001], a few mm long, may be stepped or hollow tubes; in radiating fibrous aggregates.
X-Ray Powder Diffraction:
d-spacingIntensity
11.73 (100)
4.43 (70)
3.54 (70)
2.938 (80)
2.692 (60)
2.558 (60)
2.451 (80)
Comments:All Agardites seem to be indistinguishable by XRD

Optical Data of Agardite-(Y)

Type:Uniaxial (+)
RI values: nω = 1.701 - 1.723 nε = 1.770 - 1.815
Birefringence:0.075
Maximum Birefringence:δ = 0.069

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:High
Optical Extinction:Parallel
Pleochroism:Non-pleochroic

Chemical Properties of Agardite-(Y)

Formula:
(Y,Ca)Cu
 
6
(AsO
 
4
)
 
2
(AsO
 
4
,HAsO
 
4
)(OH)
 
6
· 3H
 
2
O
Essential elements:As, Cu, H, O, Y
All elements listed in formula:As, Ca, Cu, H, O, Y

Relationship of Agardite-(Y) to other Species

Member of:Mixite Group
Other Members of Group:

- +
Agardite-(Ce)
CeCu
 
6
(AsO
 
4
)
 
3
(OH)
 
6
· 3H
 
2
O
Agardite-(Dy)
(Dy,La)Cu
 
6
(AsO
 
4
)
 
3
(OH)
 
6
· 3H
 
2
O
Agardite-(La)
(La,Ce)Cu
 
6
(AsO
 
4
)
 
3
(OH)
 
6
· 3H
 
2
O
Agardite-(Nd)
NdCu
 
6
(AsO
 
4
)
 
3
(OH)
 
6
· 3H
 
2
O
Calciopetersite
CaCu
 
6
(PO
 
4
)
 
2
(HPO
 
4
)(OH)
 
6
· 3H
 
2
O
Goudeyite
(Al,Y)Cu
 
6
(AsO
 
4
)
 
3
(OH)
 
6
· 3H
 
2
O
Mixite
BiCu
 
6
(AsO
 
4
)
 
3
(OH)
 
6
· 3H
 
2
O
Petersite-(Y)
(Y,Ce,Nd)Cu
 
6
(PO
 
4
)
 
3
(OH)
 
6
· 3H
 
2
O
Zálesíite
(Ca,Y)Cu
 
6
(AsO
 
4
)
 
2
(HAsO
 
4
,AsO
 
4
)(OH)
 
6
· 3H
 
2
O
Common Associates:
QuartzMimetiteMalachiteCupriteCopper
ChrysocollaAzurite
Related Minerals - Nickel-Strunz Grouping):

- +
8.DL.05Foggite
CaAl(PO
 
4
)(OH)
 
2
· H
 
2
O
8.DL.10Cyrilovite
NaFe
3+
3
(PO
 
4
)
 
2
(OH)
 
2
· 2H
 
2
O
8.DL.10Millisite
(Na,K)CaAl
 
6
(PO
 
4
)
 
4
(OH)
 
9
· 3H
 
2
O
8.DL.10Wardite
NaAl
 
3
(PO
 
4
)
 
2
(OH)
 
4
· 2H
 
2
O
8.DL.15Agardite-(Nd)
NdCu
 
6
(AsO
 
4
)
 
3
(OH)
 
6
· 3H
 
2
O
8.DL.15Agardite-(Ce)
CeCu
 
6
(AsO
 
4
)
 
3
(OH)
 
6
· 3H
 
2
O
8.DL.15Agardite-(La)
(La,Ce)Cu
 
6
(AsO
 
4
)
 
3
(OH)
 
6
· 3H
 
2
O
8.DL.15Goudeyite
(Al,Y)Cu
 
6
(AsO
 
4
)
 
3
(OH)
 
6
· 3H
 
2
O
8.DL.15Mixite
BiCu
 
6
(AsO
 
4
)
 
3
(OH)
 
6
· 3H
 
2
O
8.DL.15Petersite-(Y)
(Y,Ce,Nd)Cu
 
6
(PO
 
4
)
 
3
(OH)
 
6
· 3H
 
2
O
8.DL.15Zálesíite
(Ca,Y)Cu
 
6
(AsO
 
4
)
 
2
(HAsO
 
4
,AsO
 
4
)(OH)
 
6
· 3H
 
2
O
8.DL.15Plumboagardite
(Pb,REE,Ca)Cu
 
6
(AsO
 
4
)
 
2
(HAsO
 
4
,AsO
 
4
)(OH)
 
6
· 3H
 
2
O
8.DL.15Calciopetersite
CaCu
 
6
(PO
 
4
)
 
2
(HPO
 
4
)(OH)
 
6
· 3H
 
2
O
8.DL.20Cheremnykhite
Pb
 
3
Zn
 
3
(VO
 
4
)
 
2
(TeO
 
6
)
8.DL.20Dugganite
Pb
 
3
Zn
 
3
(AsO
 
4
)
 
2
(TeO
 
6
)
8.DL.20Kuksite
Pb
 
3
Zn
 
3
(PO
 
4
)
 
2
(TeO
 
6
)
8.DL.20Wallkilldellite-(Mn)
Ca
 
2
Mn
2+
3
(AsO
 
4
)
 
2
(OH)
 
4
· 9H
 
2
O
8.DL.20Wallkilldellite-(Fe)
(Ca,Cu)
 
4
Fe
2+
6
(AsO
 
4
,SiO
 
4
)
 
4
(OH,O)
 
8
· 18H
 
2
O
8.DL.25Angastonite
CaMgAl
 
2
(PO
 
4
)
 
2
(OH)
 
4
· 7H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
20.4.1Mansfieldite
AlAsO
 
4
· 2H
 
2
O
20.4.2Bulachite
Al
 
2
(AsO
 
4
)(OH)
 
3
· 3H
 
2
O
20.4.3Pharmacoalumite
KAl
 
4
(AsO
 
4
)
 
3
(OH)
 
4
· 6.5H
 
2
O
20.4.4Luetheite
Cu
 
2
Al
 
2
(AsO
 
4
)
 
2
(OH)
 
4
20.4.5Arsenogoyazite
SrAl
 
3
(AsO
 
4
)
 
2
(OH)
 
5
· H
 
2
O
20.4.6Arsenocrandallite
CaAl
 
3
(AsO
 
4
)
 
2
(OH)
 
5
· H
 
2
O
20.4.7Arsenoflorencite-(Ce)
CeAl
 
3
(AsO
 
4
)
 
2
(OH)
 
6
20.4.8Arsenoflorencite-(La)
(La,Ce,Nd)(Al,Fe
3+
 
)
 
3
(AsO
 
4
,PO
 
4
)
 
2
(OH)
 
6
20.4.9Arsenoflorencite-(Nd)
NdAl
 
3
(AsO
 
4
)
 
2
(OH)
 
6
20.4.10Gerdtremmelite
(Zn,Fe)(Al,Fe)
 
2
(AsO
 
4
)(OH)
 
5
20.4.11Gasparite-(Ce)
(Ce,REE)(AsO
 
4
)
20.4.12Chernovite-(Y)
Y(AsO
 
4
)
20.4.14Agardite-(La)
(La,Ce)Cu
 
6
(AsO
 
4
)
 
3
(OH)
 
6
· 3H
 
2
O
20.4.15Goudeyite
(Al,Y)Cu
 
6
(AsO
 
4
)
 
3
(OH)
 
6
· 3H
 
2
O
20.4.16Retzian-(Ce)
Mn
2+
2
Ce(AsO
 
4
)(OH)
 
4
20.4.17Retzian-(La)
(Mn
2+
 
,Mg)
 
2
(La,Ce,Nd)(AsO
 
4
)(OH)
 
4
20.4.18Retzian-(Nd)
Mn
2+
2
(Nd,Ce,La)(AsO
 
4
)(OH)
 
4

Other Names for Agardite-(Y)

Synonyms:
IMA1968-021
Other Languages:
German:Agardit-(Y)
Russian:Агардит-(Y)

Other Information

Fluorescence in UV light:Not fluorescent
Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Agardite-(Y)

Reference List:

- +
Bull. Min. (1969): 92: 420-434.

American Mineralogist: 55: 1447.

Best Localities for Agardite-(Y)

Best of Species:Agardite-(Y)

Internet Links for Agardite-(Y)

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  • Raman and XRD data at RRUFF project
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  • Agardite-(Y) details from Handbook of Mineralogy (PDF)
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  • Localities for Agardite-(Y)

    The map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Australia
     
    • New South Wales
      • Robinson Co.
        • Cobar
          • Cobar
    Leverett, P., McKinnon, A. R., Sharpe, J. L. and Williams, P. A. (2005) Secondary minerals from the central Cobar mines. Australian Journal of Mineralogy, 11, 75-82.
      • Yancowinna Co.
        • Broken Hill
    Australian Min. 3:1 (1997)
    Australian Mineralogist (1997): 3: 1.
    • South Australia
      • Mt Lofty Ranges
        • South Mt Lofty Ranges (Adelaide Hills)
          • Clarendon
    Kolitsch, U. and Elliott, P. (1999): Mineralogy of the Mount Malvern Mine near Clarendon, South Australia. Australian J. Mineral. 5, 3-17.
      • Olary Province
        • Kalabity homestead area
    A.G. Christy (2004) unpubl. analysis. "chlorotile/mixite" = calcian agardite-(Y)
    • Western Australia
      • East Pilbara Shire
        • Rudall River District
    Downes, P. J., Hope, M., Bevan, A. W. R. and Henry, D. A. (2006): Chalcocite and associated secondary minerals from the Telfer gold mine, Western Australia. Austral. J. Mineral. 12, 25-42.
    Bulgaria
     
    • Sofiya Oblast (Sofia Oblast)
    Kunov, A. Y.; Nakov, R. A.; Stanchev, C. D. (2002): First agardite-(Y), -(Nd), -(La) find in Bulgaria. Neues Jahrbuch fuer Mineralogie, Monatshefte 2002, 107-116.
    Chile
     
    • Antofagasta Region
      • Tocopilla Province
        • Gatico District
    Sample analysed by Dr. Jochen Schluter (Hamburg University), Germany.s
    • Atacama Region
      • Chañaral Province
        • Inca de Oro
    Luigi Matei
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • Hradec Králové Region
        • Krkonoše Mts (Riesengebirge)
          • Špindlerův Mlýn
    Plášil J., Sejkora J., Škoda R., Goliáš V. 2006: Supergene Y, REE minerals from the Medvědín deposit, the Krkonoše (Giant) Mts., Czech Repulic. Mineralogia Polonica, vol. 28, 181-183
      • Karlovy Vary Region
        • Krušné Hory Mts (Erzgebirge)
          • Jáchymov (St Joachimsthal) District
    Lapis 2002(7/8), 63-65
    Democratic Republic of Congo (Zaïre)
     
    • Katanga (Shaba)
      • Katanga Copper Crescent
        • Kolwezi District
          • Mutoshi (Ruwe)
    Deliens, M. (1989): Agardite-(Y) of Mutoshi, Shaba, Zaire. Ann. Soc. Geol. Belg. 112, 207-213. (in French); Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 4, 2000
    France
     
    • Midi-Pyrénées
      • Aveyron
        • Decazeville
          • Valzergues
    Lheur C., Peraud W., Meisser N. (2002), Résultats d'analyses concernant les arséniates et découverte de chéralite-(Ce) à la mine de Valzergues (Aveyron), Le Cahier des Micromonteurs, n°2, pp: 3-8
        • Monteils
    Georges Favreau
    • Provence-Alpes-Côte d'Azur
      • Var
        • Le Pradet
    Replace old entry deleted by error.
    Trouvaille et collection personnelle .CLAUDE Jean Marie
    • Rhône-Alpes
      • Rhône
        • Le Bois d'Oingt
          • Chessy-les-Mines
    [Le Cahier des Micromonteurs 1988, 4, p.6-46]
        • Poule-les-Echarmeaux
    Vincent Bourgoin - Association Jean Wyard
    Germany
     
    • Baden-Württemberg
      • Black Forest
        • Feldberg area
    Steen, H. (2005): Ein Neufund von Agardit-(Y) aus Rotenbach im Feldberggebiet (südlicher Schwarzwald). Der Erzgräber 19, 70-72. (in German)
        • Haslach
          • Fischerbach
    No reference listed
          • Welschbollenbach
    Lapis 1985(11), 31-32
        • Münstertal
          • Belchen
    K. Walenta: "Die Mineralien des Schwarzwaldes", Weise (Munich), 1992
          • Staufen
            • Grunern
    Steen, H. (2005): Ein Neufund von Agardit-(Y) aus Rotenbach im Feldberggebiet (südlicher Schwarzwald). Der Erzgräber 19, 70-72. (in German) [mentions also Agardite-(Y) from Amalie mine]
        • Schenkenzell
          • Wittichen
            • Böckelsbach valley
    Walenta: "Die Mineralien des Schwarzwaldes", Weise (Munich), 1992
    • Lower Saxony
      • Harz
        • Bad Lauterberg
    Aufschluss 37, 245ff
        • Clausthal-Zellerfeld
          • Oberschulenberg
    Wittern: "Mineralfundorte in Deutschland", 2001
    • North Rhine-Westphalia
    Heckmann, H. & Schertl, H.-P. (1990): Der Niederbergische Erzbergbau und seine Mineralien. Emser Hefte, 11 (2), 2-40.
        • Heiligenhaus
    Lapis 1988(1), 17-35
    • Thuringia
      • Saalfeld
    Wittern: "Mineralfundorte in Deutschland", 2001
    Germany & Czech Republic
     
    • Saxony & Ústí Region (Bohemia; Böhmen; Boehmen)
      • Erzgebirge; Krusné Hory Mts
    Sejkora J., Pauliš P., Kopista J.: Agardit-(Y) z ložiska Sn-W Cínovec v Krušných horách (Česká republika). Bulletin mineralogicko-petrografického oddělení Národního muzea v Praze, 2011, 19, 1, 64-68.
    Greece
     
    • Attikí (Attica; Attika) Prefecture
      • Lavrion (Laurion; Laurium) District
        • Lavrion District Mines
          • Agios Konstantinos [St Constantine] (Kamariza)
            • Kamariza Mines (Kamareza Mines)
    No reference listed
    No reference listed
    Italy
     
    • Liguria
      • Savona Province
        • Murialdo
          • Pastori
    Palenzona, A., Armellino, G., Bulgarelli, G. (1994): Le agarditi della Liguria. Rivista Mineralogica Italiana, 4/1994, 354-356.
    • Lombardy
      • Varese Province
        • Ceresio Valley
    No reference listed
    Nazareno La Manna collection
    • Piedmont
      • Cuneo Province
        • Bagnolo Piemonte
          • Ortieul
    Ambrino, P., Brizio, P., Ciriotti, M.E., Finello, G., Marello, B. (2009). Minerali della pietra di Luserna. AMI. CD-ROM (in italian and in english)
    • Sardinia
      • Cagliari Province
        • Muravera
    Stara, P., Rizzo, R., Brizzi G., (1993): Sarrabus Miniere e Minerali. Edito a cura dell'EMSA e "varie associazioni mineralogiche", 208 pp.
      • Carbonia-Iglesias Province
        • Domusnovas
          • Oridda
    No reference listed
        • Fluminimaggiore
    http://rruff.geo.arizona.edu/doclib/hom/agarditey.pdf
      • Medio Campidano Province
        • Arbus
    Stara, P., Rizzo, R., Tanca, G.A. (1996): Iglesiente e Arburese. Miniere e Minerali. Edito a cura dell'EMSA e "varie associazioni mineralogiche", Volume 2, 192 pp.
    Stara, P., Rizzo, R., Tanca, G.A. (1996): Iglesiente e Arburese. Miniere e Minerali. Edito a cura dell'EMSA e "varie associazioni mineralogiche", Volume 2, 192 pp.
        • Gonnosfanadiga
          • Fenugu Sibiri Mine
    I. Campostrini - Unimi (SEM-EDS)
    Stara, P., Rizzo, R., Tanca, G.A. (1996): Iglesiente e Arburese. Miniere e Minerali. Edito a cura dell'EMSA e "varie associazioni mineralogiche", Volume 2°, 192 pp.
    • Trentino-Alto Adige
      • Trento Province
        • Mocheni Valley
          • Palù del Fersina
    Ricordo di Cristel Puecher da Roveda; F. Maiello, P. Ferretti; 2009
        • Valsugana
          • Roncegno
    -Bortolozzi G., Blass G., Boscardin M., Rocchetti I. and Ferretti P. (2013): La Miniera di Cinquevalli (Valsugana, Trentino-Alto Adige): aggiornamento sulle specie accertate negli ultimi anni. Studi Trent. Sci. Nat., 93, pagg. 149-165.
          • Vignola-Falesina
    EDX + XRD analysis by Gunter Blass
    Japan
     
    • Chugoku Region
      • Hiroshima Prefecture
        • Inland Sea (Setonaikai)
          • Ikuchi Island
            • Setoda
    Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 4, 2000
    • Honshu Island
      • Kinki Region
        • Nara Prefecture
          • Goze City
    The Mineral Species of Japan (5th ed) Matsubara
    The Mineral Species of Japan (5th ed) Matsubara
    Mexico
     
    • Sonora
      • Mun. de Moctezuma
        • Moctezuma
    Collected by and in the collection of Brent Thorne. SEM EDAX analyzed.
    Mongolia
     
    • Hovd Aimag (Khovd Aimag)
      • Altai Mts
    P.M. Kartashov data
    Morocco
     
    • Marrakech-Tensift-El Haouz Region
      • Al Haouz Province
    Georges FAVREAU collection
    • Souss-Massa-Draâ Region
      • Ouarzazate Province
        • Djebel Saghro (Jbel Saghro)
          • Bou Skour district
    Georges FAVREAU collection
    Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 4, 2000
    Spain
     
    • Andalusia
      • Almería
        • Níjar
          • Rodalquilar
    Dr. Joan Viñals
      • Córdoba
        • Añora
    Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 4, 2000
    • Madrid
    Tanago, J. G., Lozano, P. L., Larios, A. , La Iglesia, A. (2012) Stokesite crystals from La Cabrera, Madrid, Spain. Mineralogical Record 43:499-508
      • Valdemanco
    Collection of the Geominero Museum of Madrid; Tanago, J. G., Lozano, P. L., Larios, A. , La Iglesia, A. (2012) Stokesite crystals from La Cabrera, Madrid, Spain. Mineralogical Record 43:499-508
    Switzerland
     
    • Glarus
      • Murg Valley
        • Mürtschenalp
    Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Verlag Wepf & Co. (Basel), p. 24
    • Wallis (Valais)
      • Binn Valley
        • Kriegalp Valley (Chriegalp Valley)
    Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Verlag Wepf & Co. (Basel), p. 24
      • Martigny
        • Mont Chemin
    UK
     
    • England
      • Cornwall
        • Liskeard District
          • Linkinhorne
            • Upton Cross
    No reference listed
        • St Erth - Gwithian Area
          • Phillack
            • Great Wheal Alfred (Alfred Consols)
    Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 4, 2000
    • Wales
      • Ceredigion (Dyfed; Cardiganshire)
        • Trefeirig
          • Goginan
    S.Rust collection
    USA
     
    • California
      • San Benito Co.
        • Diablo Range
          • New Idria District
            • San Benito River headwaters area
              • Dallas Gem Mine area
                • South of the Dallas Gem Mine
    Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 323.
      • San Bernardino Co.
        • Clark Mts (Clark Mountain Range)
          • Clark Mountain District
            • Pactolus
              • Mohawk Hill
    [Mineralien Welt 1/93:44]
    • Nevada
      • Clark Co.
        • Goodsprings District
    Rocks & Minerals 83:1 pp 65-69
      • Esmeralda Co.
        • Railroad Springs District
    NBMG Spec. Pub. 31 Minerals of Nevada
    Weissman collection - visual ID based on similarity to Big 3 Mine
      • Mineral Co.
        • Bell District
    NBMG Spec. Pub. 31 Minerals of Nevada
      • Nye Co.
        • Lodi District
          • Quartz Mountain camp
    NBMG Spec. Pub. 31 Minerals of Nevada; Rocks & Minerals (2010) 85:512-524
      • Pershing Co.
        • Antelope District
          • Majuba Hill Mine (Mylar Mine)
    Jensen, M. (1993): Update on the mineralogy of the Majuba Hill mine, Pershing County. Mineralogical Record. 24, 171-180.
    • New Mexico
      • Hidalgo Co.
        • San Simon District
          • Granite Gap
    R&M 77:5 p298-305
    Twenty-fourth Annual New Mexico Mineral Symposium
    R. D. Green photo
    R&M 77:5 p298-305
      • Santa Fe Co.
        • New Placers District
    Northrop, Minerals of New Mexico, 3rd Rev. Ed., 1996
    • Washington
      • Okanogan Co.
        • Golden Horn Batholith
    Micro Probe Volume VI Number 8; Rocks and Minerals, 66:6, p. 453
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