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Bideauxite

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Mammoth-Saint Anthony Mine (Mammoth-St Anthony Mine; Mammoth Mine; St. Anthony Mine), St. Anthony deposit, Tiger, Mammoth District, Pinal Co., Arizona, USA
© 2009 ROM

Formula:
Pb
 
2
Ag[(F,OH)
 
2
|Cl
 
3
]
System:IsometricColour:Colourless, becoming ...
Lustre:Adamantine, DullHardness:3
Name:For Richard August Bideaux (1935-2004) of Oro Valley, Arizona, USA, American mineralogist, author and mineral collector.
This page provides mineralogical data about Bideauxite.

Classification of Bideauxite

IMA status:Approved 1969
Strunz 8th edition ID:3/D.12-05
Nickel-Strunz 10th (pending) edition ID:3.DB.25

3 : HALIDES
D : Oxyhalides, hydroxyhalides and related double halides
B : With Pb, Cu, etc.
Dana 8th edition ID:10.6.9.1

10 : OXYHALIDES AND HYDROXYHALIDES
6 : AmBn(O,OH)pXq
Hey's CIM Ref.:8.8.17

8 : Halides - Fluorides, Chlorides, Bromides and Iodides; also Fluoborates and Fluosilicates
8 : Halides of Pb
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Type Occurrence of Bideauxite

Type Locality:Mammoth-Saint Anthony Mine (Mammoth-St Anthony Mine; Mammoth Mine; St. Anthony Mine), St. Anthony deposit, Tiger, Mammoth District, Pinal Co., Arizona, USA
General Appearance of Type Material:Crystals to 7 mm
Place of Conservation of Type Material:National Museum of Natural History, Washington, D.C., USA (No. 114583)
Geological Setting of type material:With other oxidized lead and chloride minerals, from an oxidized base-metal mineral deposit
Associated Minerals at type locality:
QuartzMatlockiteLeadhilliteCovelliteCerussite
BoleiteAnglesite

Physical Properties of Bideauxite

Lustre:Adamantine, Dull
Diaphaneity (Transparency):Transparent
Colour:Colourless, becoming pale lavender on exposure to light
Streak:White
Hardness (Mohs):3
Tenacity:Brittle
Fracture:Conchoidal
Density (measured):6.274 g/cm3
Density (calculated):6.256 g/cm3

Crystallography of Bideauxite

Crystal System:Isometric
Class (H-M):m3m (4/m 3 2/m) - Hexoctahedral
Space Group:Fd3m {F41/d 3 2/m}
Cell Parameters:a = 14.132Å
Unit Cell Volume:V 2,822.35 ų (Calculated from Unit Cell)
Z:16
Morphology:Crystals are dominated by {100}, {111}, {011}, with {113}, {114}, {112}, {116} and {029}
X-Ray Powder Diffraction:
d-spacingIntensity
2.718 (10)
3.530 (9)
2.497 (9)
4.259 (7)
4.076 (7)
3.240 (7)
Comments:Recorded on type material

Optical Data of Bideauxite

Type:Isotropic
RI values: n = 2.192
Maximum Birefringence:δ = 0.000 - Isotropic minerals have no birefringence
Surface Relief:Very High
Dispersion:Low

Chemical Properties of Bideauxite

Formula:
Pb
 
2
Ag[(F,OH)
 
2
|Cl
 
3
]
Essential elements:Ag, Cl, F, Pb
All elements listed in formula:Ag, Cl, F, H, O, Pb
Analytical Data:Averages of two analyses of type material; Ag and Pb by atomic absorption spectrometry, OH calculated from the charge balance
Ag (15.74)
Pb (62.66)
F   (3.26)
Cl (14.74)
OH  (2.78)

sum 99.18 wt.-%
Empirical Formula:
Pb
 
2.02
Ag
 
0.97
Cl
 
2.77
F
 
1.14
(OH)
 
1.09

Relationship of Bideauxite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
3.DB.05Diaboleite
Pb
 
2
CuCl
 
2
(OH)
 
4
3.DB.10Pseudoboleite
Pb
 
31
Cu
 
24
Cl
 
62
(OH)
 
48
3.DB.15Boleite
KPb
 
26
Ag
 
9
Cu
 
24
(OH)
 
48
Cl
 
62
3.DB.20Cumengeite
Pb
 
21
Cu
 
20
Cl
 
42
(OH)
 
40
·6H
 
2
O
3.DB.30Chloroxiphite
Pb
 
3
CuO
 
2
Cl
 
2
(OH)
 
2
3.DB.35Hematophanite
Pb
 
4
Fe
 
3
O
 
8
(OH,Cl)
3.DB.40Asisite
Pb
 
7
[O
 
4
|SiO
 
4
|Cl
 
2
]
3.DB.40Parkinsonite
(Pb,Mo,[])
 
8
O
 
8
Cl
 
2
3.DB.45Murdochite
PbCu
 
6
O
 
8-x
(Cl,Br)
 
2x
 x<=0.5
3.DB.50Yedlinite
Pb
 
6
(Cl,OH)
 
6
Cr
3+
 
(OH,O)
 
8
Related Minerals - Hey's Index Grouping:

- +
8.8.1Abhurite
Sn
 
21
Cl
 
16
(OH)
 
14
O
 
6
8.8.2Matlockite
PbFCl
8.8.3Laurelite
Pb(F,Cl,OH)
 
2
8.8.4Cotunnite
PbCl
 
2
8.8.5Mendipite
Pb
 
3
[O
 
2
|Cl
 
2
]
8.8.6Damaraite
Pb
 
3
[O
 
2
|OH|Cl]
8.8.7Laurionite
PbClOH
8.8.8Paralaurionite
PbClOH
8.8.9Penfieldite
Pb
 
2
[OH|Cl
 
3
]
8.8.10Fiedlerite
Pb
 
3
Cl
 
4
F(OH)·H
 
2
O
8.8.11Blixite
Pb
 
2
[(O,OH)
 
2
|Cl]
8.8.12Pseudocotunnite
K
 
2
PbCl
 
4
8.8.13Diaboleite
Pb
 
2
CuCl
 
2
(OH)
 
4
8.8.14Pseudoboleite
Pb
 
31
Cu
 
24
Cl
 
62
(OH)
 
48
8.8.15Chloroxiphite
Pb
 
3
CuO
 
2
Cl
 
2
(OH)
 
2
8.8.18Boleite
KPb
 
26
Ag
 
9
Cu
 
24
(OH)
 
48
Cl
 
62
8.8.19Aravaipaite
Pb
 
3
[F
 
3
|AlF
 
6
] · H
 
2
O
8.8.20Yedlinite
Pb
 
6
(Cl,OH)
 
6
Cr
3+
 
(OH,O)
 
8
8.8.21Kolarite
PbTeCl
 
2
8.8.22Hematophanite
Pb
 
4
Fe
 
3
O
 
8
(OH,Cl)

Other Names for Bideauxite

Synonyms:
IMA1969-038
Other Languages:
German:Bideauxit
Russian:Бидоксит
Spanish:Bideauxita

Other Information

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 Bideauxite

Reference List:Williams, S. A. (1970): Bideauxite, a new Arizona mineral, Mineralogical Magazine 37, 637-640. - American Mineralogist (1971), 56, 634-635 (abstract).

American Mineralogist (1972), 57, 1003.

Anthony, J. W. et al. (1997): Handbook of Mineralogy, Vol. 3, 55

Cooper, M. A., Hawthorne, F. C., Merlino, S., Pasero, M. and Perchiazzi, N. (1999): Stereoactive lone-pair behaviour of Pb2+ in the crystal structure of bideauxite, Pb2AgCl(F,OH)2. Canadian Mineralogist 37, 915-921.

Internet Links for Bideauxite

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    Localities for Bideauxite

    Hide Locality List
    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.
    Chile
     
    • Tarapacá Region
      • Iquique Province
        • Iquique
    		Anthony, J. W. et al. (1997): Handbook of Mineralogy, Vol. 3, 55
    USA
     
    • Arizona
      • Pinal Co.
        • Mammoth District
          • Tiger
            • St. Anthony deposit
    		Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 135; Williams, S.A. (1970a), Bideauxite, a new Arizona mineral, Min.Mag.: 37: 637-640; Nickel & Nichols, 1991 - "Mineral Reference Manual": 22.
    Mineral and/or Locality
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    Copyright © Jolyon Ralph and Ida Chau 1993-2009. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 26th Oct 2009 12:58:02