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Bideauxite

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About BideauxiteHide

Richard A. Bideaux
Formula:
Pb2AgCl3(F,OH)2
Colour:
Colourless, becoming pale lavender on exposure to light
Lustre:
Adamantine, Dull
Hardness:
3
Specific Gravity:
6.274
Crystal System:
Isometric
Name:
Named in 1970 by Sidney A. Williams for Richard August Bideaux (March 28, 1935, Tucson, Arizona - October 26, 2004, Prescott, Arizona) of Oro Valley, Arizona, USA. American mineralogist, author and mineral collector. Co-founder of Mineralogical Record, co-author of Handbook of Mineralogy and Mineralogy of Arizona, and founding member of the Friends of Mineralogy.
This page provides mineralogical data about Bideauxite.


Classification of BideauxiteHide

Approved
Approval Year:
1969
3.DB.25

3 : HALIDES
D : Oxyhalides, hydroxyhalides and related double halides
B : With Pb, Cu, etc.
10.6.9.1

10 : OXYHALIDES AND HYDROXYHALIDES
6 : AmBn(O,OH)pXq
8.8.17

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

Physical Properties of BideauxiteHide

Adamantine, Dull
Transparency:
Transparent
Colour:
Colourless, becoming pale lavender on exposure to light
Streak:
White
Hardness:
Tenacity:
Brittle
Fracture:
Conchoidal
Density:
6.274 g/cm3 (Measured)    6.256 g/cm3 (Calculated)

Optical Data of BideauxiteHide

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

Chemical Properties of BideauxiteHide

Formula:
Pb2AgCl3(F,OH)2
IMA Formula:
AgPb2F2Cl3

Crystallography of BideauxiteHide

Crystal System:
Isometric
Class (H-M):
m3m (4/m 3 2/m) - Hexoctahedral
Space Group:
Fd3m
Cell Parameters:
a = 14.132 Å
Unit Cell 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 DiffractionHide

Powder Diffraction Data:
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

Type Occurrence of BideauxiteHide

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:

Synonyms of BideauxiteHide

Other Language Names for BideauxiteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
Boleite3 photos of Bideauxite associated with Boleite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

3.DB.RickturneritePb7O4[Mg(OH)4](OH)Cl3Orth. mmm (2/m 2/m 2/m) : Pnma
3.DB.05DiaboleitePb2CuCl2(OH)4Tet. 4mm : P4mm
3.DB.10PseudoboleitePb31Cu24Cl62(OH)48Tet. 4/mmm (4/m 2/m 2/m) : I4/mmm
3.DB.15BoleiteKPb26Ag9Cu24(OH)48Cl62Iso. m3m (4/m 3 2/m) : Pm3m
3.DB.20CumengeitePb21Cu20Cl42(OH)40 · 6H2OTet. 4/mmm (4/m 2/m 2/m) : I4/mmm
3.DB.30ChloroxiphitePb3CuO2Cl2(OH)2Mon. 2/m : P21/m
3.DB.35HematophanitePb4Fe3O8(OH,Cl)Tet. 4/mmm (4/m 2/m 2/m)
3.DB.40AsisitePb7SiO9Cl2 Tet. 4/mmm (4/m 2/m 2/m) : I4/mmm
3.DB.40ParkinsonitePb7MoO9Cl2 Tet.
3.DB.45MurdochitePbCu6O8-x(Cl,Br)2x where x<=0.5Iso. m3m (4/m 3 2/m) : Fm3m
3.DB.50YedlinitePb6Cr3+Cl6(O,OH,H2O)8Trig. 3 : R3

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

8.8.1AbhuriteSn21Cl16(OH)14O6Trig.
8.8.2MatlockitePbFClTet. 4/mmm (4/m 2/m 2/m) : P4/nmm
8.8.3LaurelitePb7F12Cl2Hex. 6 : P6
8.8.4CotunnitePbCl2Orth. mmm (2/m 2/m 2/m)
8.8.5MendipitePb3Cl2O2Orth. 2 2 2 : P21 21 21
8.8.6DamaraitePb3Cl(OH)O2Orth. mm2 : Pmc21
8.8.7LaurionitePbCl(OH)Orth. mmm (2/m 2/m 2/m)
8.8.8ParalaurionitePbCl(OH)Mon. 2/m : B2/m
8.8.9PenfielditePb2Cl3(OH)Hex. 6 : P6
8.8.10FiedleritePb3FCl4(OH) · H2OMon. 2/m
8.8.11BlixitePb2(O,OH)2ClOrth.
8.8.12PseudocotunniteK2PbCl4Orth.
8.8.13DiaboleitePb2CuCl2(OH)4Tet. 4mm : P4mm
8.8.14PseudoboleitePb31Cu24Cl62(OH)48Tet. 4/mmm (4/m 2/m 2/m) : I4/mmm
8.8.15ChloroxiphitePb3CuO2Cl2(OH)2Mon. 2/m : P21/m
8.8.18BoleiteKPb26Ag9Cu24(OH)48Cl62Iso. m3m (4/m 3 2/m) : Pm3m
8.8.19AravaipaitePb3AlF9 · H2OTric.
8.8.20YedlinitePb6Cr3+Cl6(O,OH,H2O)8Trig. 3 : R3
8.8.21KolaritePbTeCl2Orth.
8.8.22HematophanitePb4Fe3O8(OH,Cl)Tet. 4/mmm (4/m 2/m 2/m)

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for BideauxiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
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 BideauxiteHide

Localities for BideauxiteHide

This 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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Chile
 
  • Tarapacá Region
    • Iquique Province
      • Iquique
Anthony, J. W. et al. (1997): Handbook of Mineralogy, Vol. 3, 55
USA (TL)
 
  • 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, Mineralogical Magazine: 37: 637-640; Nickel & Nichols, 1991 - "Mineral Reference Manual": 22.
Mineral and/or Locality  
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