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Coconinoite

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Formula:
Fe
3+
2
Al
 
2
(UO
 
2
)
 
2
(PO
 
4
)
 
4
(SO
 
4
)(OH)
 
2
· 20H
 
2
O
System:MonoclinicColour:Pale creamy yellow
Name:For Coconino county, Arizona.
This page provides mineralogical data about Coconinoite.

Classification of Coconinoite

IMA status:Approved 1965
Strunz 8th edition ID:7/E.06-20
Nickel-Strunz 10th (pending) edition ID:8.EB.35

8 : PHOSPHATES, ARSENATES, VANADATES
E : Uranyl phosphates and arsenates
B : UO2:RO4 = 1:1
Dana 8th edition ID:43.5.5.1

43 : COMPOUND PHOSPHATES, ETC.
5 : Hydrated Compound Phosphates, etc·, Containing Hydroxyl or Halogen
Hey's CIM Ref.:22.3.20

22 : Phosphates, Arsenates or Vanadates with other Anions
3 : Phosphates, arsenates or vanadates with sulphates
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Type Occurrence of Coconinoite

Co-type Localities:Huskon No. 7 Mine (Huskon No. 7 - Yazzie No. 102 Mine; Yazzie No. 102 Mine), Huskon Mines, Cameron, Cameron District, Coconino Co., Arizona, USA
Sun Valley Mine, Vermillion Cliffs District, Coconino Co., Arizona, USA
Year of Discovery:1965
Geological Setting of type material:In seams 1 mm or less thick, mostly along bedding planes of a light-colored, arkosic, fine-grained, poorly sorted & thinly bedded sandstone.

Physical Properties of Coconinoite

Diaphaneity (Transparency):Translucent
Colour:Pale creamy yellow
Comment:Soft
Density (measured):2.70 g/cm3
Density (calculated):2.68 g/cm3

Crystallography of Coconinoite

Crystal System:Monoclinic
Cell Parameters:a = 12.45(6) Å, b = 12.96(3) Å, c = 17.22(5) Å
β = 105.7°
Ratio:a:b:c = 0.961 : 1 : 1.329
Unit Cell Volume:V 2,674.82 ų (Calculated from Unit Cell)
Morphology:Lathlike to platy grains, microcrystalline aggregates, seams, crusts.
Comment:Tentative cell (from Belova et al., 1993); probable space group: C2/c or Cc.

Optical Data of Coconinoite

Type:Biaxial (-)
RI values: nα = 1.550 nβ = 1.588 nγ = 1.590
2V:Measured: 28° to 43°, Calculated: 24°
Maximum Birefringence:δ = 0.040

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Moderate
Dispersion:r < v strong
Pleochroism:Visible
Comments:X= colorless
Y=Z= pale yellow

Chemical Properties of Coconinoite

Formula:
Fe
3+
2
Al
 
2
(UO
 
2
)
 
2
(PO
 
4
)
 
4
(SO
 
4
)(OH)
 
2
· 20H
 
2
O
Simplified for copy/paste:Fe3+2Al2(UO2)2(PO4)4(SO4)(OH)2·20H2O
Essential elements:Al, Fe, H, O, P, S, U
All elements listed in formula:Al, Fe, H, O, P, S, U
Common Impurities:Fe,Cr

Relationship of Coconinoite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
8.EB.05Autunite
Ca(UO
 
2
)
 
2
(PO
 
4
)
 
2
· 11H
 
2
O
8.EB.05Heinrichite
Ba(UO
 
2
)
 
2
(AsO
 
4
)
 
2
· 10H
 
2
O
8.EB.05Kahlerite
Fe(UO
 
2
)
 
2
(AsO
 
4
)
 
2
· 12H
 
2
O
8.EB.05Nováčekite-I
Mg(UO
 
2
)
 
2
(AsO
 
4
)
 
2
· 12H
 
2
O
8.EB.05Saléeite
Mg(UO
 
2
)
 
2
(PO
 
4
)
 
2
· 10H
 
2
O
8.EB.05Torbernite
Cu(UO
 
2
)
 
2
(PO
 
4
)
 
2
· 12H
 
2
O
8.EB.05Uranocircite
Ba(UO
 
2
)
 
2
(PO
 
4
)
 
2
· 10H
 
2
O
8.EB.05Uranospinite
Ca(UO
 
2
)(AsO
 
4
)
 
2
· 10H
 
2
O
8.EB.05Xiangjiangite
(Fe
3+
 
,Al)(UO
 
2
)
 
4
(PO
 
4
)
 
2
(SO
 
4
)
 
2
(OH) · 22H
 
2
O
8.EB.05Zeunerite
Cu(UO
 
2
)
 
2
(AsO
 
4
)
 
2
· 12H
 
2
O
8.EB.05Metarauchite
Ni(UO
 
2
)
 
2
(AsO
 
4
)
 
2
· 8H
 
2
O
8.EB.05Rauchite
Ni(UO
 
2
)
 
2
(AsO
 
4
)
 
2
· 10H
 
2
O
8.EB.10Bassetite
Fe
2+
 
(UO
 
2
)
 
2
(PO
 
4
)
 
2
· 8H
 
2
O
8.EB.10Lehnerite
Mn
2+
 
(UO
 
2
)
 
2
(PO
 
4
)
 
2
· 8H
 
2
O
8.EB.10Meta-autunite
Ca(UO
 
2
)
 
2
(PO
 
4
)
 
2
· 6-8H
 
2
O
8.EB.10Metasaléeite
Mg(UO
 
2
)
 
2
(PO
 
4
)
 
2
· 8H
 
2
O
8.EB.10Metauranocircite
Ba(UO
 
2
)
 
2
(PO
 
4
)
 
2
· 7H
 
2
O
8.EB.10Metauranospinite
Ca(UO
 
2
)
 
2
(AsO
 
4
)
 
2
· 8H
 
2
O
8.EB.10Metaheinrichite
Ba(UO
 
2
)
 
2
(AsO
 
4
)
 
2
· 8H
 
2
O
8.EB.10Metakahlerite
Fe
2+
 
(UO
 
2
)
 
2
(AsO
 
4
)
 
2
· 8H
 
2
O
8.EB.10Metakirchheimerite
Co(UO
 
2
)
 
2
(AsO
 
4
)
 
2
· 8H
 
2
O
8.EB.10Metanováčekite
Mg(UO
 
2
)
 
2
(AsO
 
4
)
 
2
· 4-8H
 
2
O
8.EB.10Metatorbernite
Cu(UO
 
2
)
 
2
(PO
 
4
)
 
2
· 8H
 
2
O
8.EB.10Metazeunerite
Cu(UO
 
2
)
 
2
(AsO
 
4
)
 
2
· 8H
 
2
O
8.EB.10Przhevalskite
Pb
 
2
(UO
 
2
)
 
3
(PO
 
4
)
 
2
(OH)
 
4
· 3H
 
2
O
8.EB.10Meta-lodèvite
8.EB.15Abernathyite
K
 
2
(UO
 
2
)
 
2
(AsO
 
4
)
 
2
· 6H
 
2
O
8.EB.15Chernikovite
(H
 
3
O)
 
2
(UO
 
2
)
 
2
(PO
 
4
)
 
2
· 6H
 
2
O
8.EB.15Meta-ankoleite
K
 
2
(UO
 
2
)
 
2
(PO
 
4
)
 
2
· 6H
 
2
O
8.EB.15Natrouranospinite
(Na
 
2
,Ca)(UO
 
2
)
 
2
(AsO
 
4
)
 
2
· 5H
 
2
O
8.EB.15Trögerite
(UO
 
2
)
 
3
(AsO
 
4
)
 
2
· 12H
 
2
O (?)
8.EB.15Uramphite
(NH
 
4
)
 
2
(UO
 
2
)
 
2
(PO
 
4
)
 
2
· 6H
 
2
O
8.EB.15Uramarsite
(NH
 
4
,H
 
3
O)
 
2
(UO
 
2
)
 
2
(AsO
 
4
,PO
 
4
)
 
2
· 6H
 
2
O
8.EB.20Threadgoldite
Al(UO
 
2
)
 
2
(PO
 
4
)
 
2
(OH) · 8H
 
2
O
8.EB.20Chistyakovaite
Al(UO
 
2
)
 
2
(AsO
 
4
)
 
2
(F,OH) · 6.5H
 
2
O
8.EB.25Arsenuranospathite
HAl(UO
 
2
)
 
4
(AsO
 
4
)
 
4
· 40H
 
2
O
8.EB.25Uranospathite
(Al,☐)(UO
 
2
)
 
2
(PO
 
4
)
 
2
F · 20(H
 
2
O,F)
8.EB.30Vochtenite
(Fe
2+
 
,Mg)Fe
3+
 
(UO
 
2
)
 
4
(PO
 
4
)
 
4
(OH) · 12-13H
 
2
O
8.EB.40Ranunculite
HAl(UO
 
2
)(PO
 
4
)(OH)
 
3
· 4H
 
2
O
8.EB.45Triangulite
Al
 
3
(UO
 
2
)
 
4
(PO
 
4
)
 
4
(OH)
 
5
· 5H
 
2
O
8.EB.50Furongite
Al
 
13
(UO
 
2
)
 
7
(PO
 
4
)
 
13
(OH)
 
14
· 58H
 
2
O
8.EB.55Sabugalite
HAl(UO
 
2
)
 
4
(PO
 
4
)
 
4
· 16H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
22.3.1Parnauite
Cu
 
9
(AsO
 
4
)
 
2
(SO
 
4
)(OH)
 
10
· 7H
 
2
O
22.3.2Ardealite
Ca
 
2
(HPO
 
4
)(SO
 
4
) · 4H
 
2
O
22.3.3Machatschkiite
(Ca,Na)
 
6
(AsO
 
4
)(HAsO
 
4
)
 
3
(PO
 
4
,SO
 
4
) · 15H
 
2
O
22.3.4Clinotyrolite
Ca
 
2
Cu
 
9
(AsO
 
4
,SO
 
4
)
 
4
(OH,O)
 
10
· 10H
 
2
O
22.3.5Peisleyite
Na
 
2
Al
 
9
[(P,S)O
 
4
]
 
8
(OH)
 
6
•28H
 
2
O
22.3.6Chalcophyllite
Cu
 
18
Al
 
2
(SO
 
4
)
 
3
(AsO
 
4
)
 
3
(OH)
 
27
· 33H
 
2
O
22.3.7Woodhouseite
CaAl
 
3
(PO
 
4
)(SO
 
4
)(OH)
 
6
22.3.8Schlossmacherite
(H
 
3
O)Al
 
3
(SO
 
4
)
 
2
(OH)
 
6
22.3.9Svanbergite
SrAl
 
3
(PO
 
4
)(SO
 
4
)(OH)
 
6
22.3.10Kemmlitzite
(Sr,Ce)Al
 
3
(AsO
 
4
)(SO
 
4
)(OH)
 
6
22.3.11Sanjuanite
Al
 
2
(PO
 
4
)(SO
 
4
)(OH) · 9H
 
2
O
22.3.12Kribergite
Al
 
5
(PO
 
4
)
 
3
(SO
 
4
)(OH)
 
4
· 4H
 
2
O
22.3.13Hotsonite
Al
 
11
(SO
 
4
)
 
3
(PO
 
4
)
 
2
(OH)
 
21
· 16H
 
2
O
22.3.14Weilerite
BaAl
 
3
(AsO
 
4
)(SO
 
4
)(OH)
 
6
22.3.15Tsumebite
Pb
 
2
Cu(PO
 
4
)(SO
 
4
)(OH)
22.3.16Arsentsumebite
Pb
 
2
Cu(AsO
 
4
)(SO
 
4
)(OH)
22.3.17Hinsdalite
PbAl
 
3
(PO
 
4
)(SO
 
4
)(OH)
 
6
22.3.18Hidalgoite
PbAl
 
3
(AsO
 
4
)(SO
 
4
)(OH)
 
6
22.3.19Orpheite
22.3.21Sasaite
(Al,Fe
3+
 
)
 
14
(PO
 
4
)
 
11
(SO
 
4
)(OH)
 
7
· 83H
 
2
O
22.3.22Tristramite
(Ca,U,Fe)(PO
 
4
,SO
 
4
) · 2H
 
2
O
22.3.23Corkite
PbFe
 
3
(PO
 
4
)(SO
 
4
)(OH)
 
6
22.3.24Beudantite
PbFe
 
3
(AsO
 
4
)(SO
 
4
)(OH)
 
6
22.3.25Diadochite
Fe
3+
2
(PO
 
4
)(SO
 
4
)(OH) · 5H
 
2
O
22.3.26Sarmientite
Fe
3+
2
(AsO
 
4
)(SO
 
4
)(OH) · 5H
 
2
O
22.3.27Bukovskýite
Fe
3+
2
(AsO
 
4
)(SO
 
4
)(OH) · 9H
 
2
O
22.3.28Zýkaite
Fe
3+
4
(AsO
 
4
)
 
3
(SO
 
4
)(OH) · 15H
 
2
O
22.3.29Tooeleite
Fe
3+
6
(As
3+
 
O
 
3
)
 
4
(SO
 
4
)(OH)
 
4
· 4H
 
2
O
22.3.30Pitticite
(Fe, SO
 
4
, AsO
 
4
, H
 
2
O) ?
22.3.31Xiangjiangite
(Fe
3+
 
,Al)(UO
 
2
)
 
4
(PO
 
4
)
 
2
(SO
 
4
)
 
2
(OH) · 22H
 
2
O

Other Names for Coconinoite

Synonyms:
IMA1965-003
Other Languages:
German:Coconinoit
Spanish:Coconinoita

Other Information

Health Warning:Radioactive

References for Coconinoite

Reference List:

- +
Young, E. J., Weeks, A. D. & Meyrowitz, R. (1966): Coconinoite, a new mineral from Utah and Arizona. American Mineralogist 51, 651-663.

Belova, L. N.; Gorshkov, A. I.; Doinikova, O. A.; Mokhov, A. V.; Trubkin, N. V.; Sivtsov, A. V. (1993): New data on coconinoite. Doklady Akademii Nauk 329, 772-775. (In Russian.)

Internet Links for Coconinoite

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  • Raman and XRD data at RRUFF project
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  • Localities for Coconinoite

    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.
    Argentina
     
    • Catamarca
    O. Morello y C. N. Reyes Encinas (1990). Estudio mineralógico de nueve muestras procedentes de la Sierra de Fiambalá, dpto. Tinogasta, Catamarca. Informe DEE N° 33-90, Comisión Nacional de Energía Atómica. Inédito.
    O. Morello y C. N. Reyes Encinas (1990). Estudio mineralógico de nueve muestras procedentes de la Sierra de Fiambalá, dpto. Tinogasta, Catamarca. Informe DEE N° 33-90, Comisión Nacional de Energía Atómica. Inédito.
    M. E. Saulnier y F. Greco (1988). Estudio mineralógico de cuatro muestras procedentes de la Manifestación Las Termas del área de Los Ratones, Fiambalá, Tinogasta, Catamarca. Informe DEE N° 1-88, Comisión Nacional de Energía Atómica. Inédito.
    Italy
     
    • Sardinia
      • Cagliari Province
        • Capoterra
    Lecca G., Ciriotti M.E., Blass G., Callegari A.M. and Boiocchi M. (2011): - Primo ritrovamento europeo di coconinoite. Micro, 9,73-77.
    Switzerland
     
    • Wallis (Valais)
      • Le Trient Valley
        • Les Marécottes
    - Meisser, N. (2012): La minéralogie de l'uranium dans le massif des Aiguilles Rouges. Matér. Géol. Suisse, Sér. géotech. 96, 183 p.
    USA
     
    • Arizona
      • Apache Co.
    Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 180; Young, E.J., et al (1966), Coconinoite, a new uranium mineral from UT and AZ, Am.Min.: 51: 651-663.
      • Coconino Co.
        • Cameron District
          • Cameron
            • Huskon Mines
    Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 180; Young, E.J., et al (1966), Coconinoite, a new uranium mineral from Utah and Arizona, Am.Min.: 51: 651-663.
        • Vermillion Cliffs District
    Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 180; Young, E.J., et al (1966), Coconinoite, a new uranium mineral from Utah and Arizona, Am.Min.: 51: 651-663.
    • New Hampshire
      • Grafton Co.
        • Grafton
    Young, E., Weeks, A., and Meyrowitz,R., 1966, Coconinoite, A New Uranium Mineral from Utah and Arizona, Am Min v 51:651-663
    • Utah
      • San Juan Co.
        • White Canyon District
          • White Canyon
    Am Min 51: 651-663; Min Rec 30 pp231-238
    Handbook of Mineralogy
    Uzbekistan
     
    Belova, L. N.; Gorshkov, A. I.; Doinikova, O. A.; Mokhov, A. V.; Trubkin, N. V.; Sivtsov, A. V. (1993): New data on coconinoite. Doklady Akademii Nauk 329, 772-775 [Mineral.]. (In Russian.) ; Handbook of Mineralogy
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