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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

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Formula:
Pb
 
2
AgCl
 
3
(F,OH)
 
2
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)
1.839 (6)
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
AgCl
 
3
(F,OH)
 
2
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.Rickturnerite
Pb
 
7
O
 
4
[Mg(OH)
 
4
](OH)Cl
 
3
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
(SiO
 
4
)O
 
4
Cl
 
2
3.DB.40Parkinsonite
(Pb,Mo,◻)
 
8
O
 
8
Cl
 
2
3.DB.45Murdochite
PbCu
 
6
O
 
8-x
(Cl,Br)
 
2x
 where x<=0.5
3.DB.50Yedlinite
Pb
 
6
Cr
3+
 
Cl
 
6
(O,OH,H
 
2
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
 
7
F
 
12
Cl
 
2
8.8.4Cotunnite
PbCl
 
2
8.8.5Mendipite
Pb
 
3
Cl
 
2
O
 
2
8.8.6Damaraite
Pb
 
3
Cl(OH)O
 
2
8.8.7Laurionite
PbCl(OH)
8.8.8Paralaurionite
PbCl(OH)
8.8.9Penfieldite
Pb
 
2
Cl
 
3
(OH)
8.8.10Fiedlerite
Pb
 
3
FCl
 
4
(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
Cr
3+
 
Cl
 
6
(O,OH,H
 
2
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

Search Engines:
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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Bideauxite details from Handbook of Mineralogy (PDF)
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    • Localities for Bideauxite

    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.
    Hide Locality List
    (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.
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