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Aravaipaite

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Formula:
Pb3AlF9 · H2O
Colour:
Colourless
Lustre:
Vitreous, Pearly
Hardness:
2
Specific Gravity:
6.37 (Calculated)
Crystal System:
Triclinic
Name:
For the Aravaipa mining district, Arizona, USA, where the mineral occurs.
Closely related to Calcioaravaipaite which has dominant Ca and no water.

See also Unnamed (Ba-analogue of Calcioaravaipaite).


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Classification of AravaipaiteHide

Approved
Approval Year:
1988
3.DC.35

3 : HALIDES
D : Oxyhalides, hydroxyhalides and related double halides
C : With Pb (As,Sb,Bi), without Cu
11.6.19.1

11 : HALIDE COMPLEXES
6 : Aluminofluorides - Isolated Octahedra
8.8.19

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

Physical Properties of AravaipaiteHide

Vitreous, Pearly
Transparency:
Transparent
Colour:
Colourless
Streak:
White
Hardness:
Tenacity:
Elastic
Cleavage:
Perfect
micaceous on {010}; good on {100}, {001}, {101}, {10_1}
Fracture:
Irregular/Uneven
Density:
6.37 g/cm3 (Calculated)

Optical Data of AravaipaiteHide

Type:
Biaxial (-)
RI values:
nα = 1.678 nβ = 1.690 nγ = 1.694
2V:
Measured: 70° to 73°, Calculated: 66°
Max Birefringence:
δ = 0.016
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
High
Dispersion:
r < v, strong

Chemical Properties of AravaipaiteHide

Formula:
Pb3AlF9 · H2O

Crystallography of AravaipaiteHide

Crystal System:
Triclinic
Cell Parameters:
a = 5.842 Å, b = 25.2 Å, c = 5.652 Å
α = 93.84°, β = 90.14°, γ = 85.28°
Ratio:
a:b:c = 0.232 : 1 : 0.224
Unit Cell V:
827.39 ų (Calculated from Unit Cell)
Z:
4
Morphology:
Platy crystals, flattened on {010}.
Twinning:
polysynthetic on {010}, universal
Comment:
Originally thought to be monoclinic, with monoclinic, P21/n, with a = 25.048(4), b = 5.8459(8), c = 5.6505(7) Å, β = 94.013(3)°..

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.134 (100)
12.5 (80)
3.65 (70)
3.50 (60)
3.33 (60)
2.916 (40)
2.822 (40)
Comments:
Recorded on material from the type locality

Type Occurrence of AravaipaiteHide

General Appearance of Type Material:
platy crystals to 3 mm
Place of Conservation of Type Material:
National History Museum, Los Angeles, California (No. 25414);
National Museum of Natural History, Washington, D.C., USA (No. 166058)
Geological Setting of Type Material:
oxidized zone of an epithermal Pb-Cu-Ag deposit hosted by a silicified rhyolite-schist breccia
Associated Minerals at Type Locality:

Synonyms of AravaipaiteHide

Other Language Names for AravaipaiteHide

Related Minerals - Nickel-Strunz GroupingHide

3.DC.05LaurionitePbCl(OH)Orth. mmm (2/m 2/m 2/m)
3.DC.05ParalaurionitePbCl(OH)Mon. 2/m : B2/m
3.DC.10FiedleritePb3FCl4(OH) · H2OMon. 2/m
3.DC.15PenfielditePb2Cl3(OH)Hex. 6 : P6
3.DC.20LaurelitePb7F12Cl2Hex. 6 : P6
3.DC.25Bismoclite(BiO)ClTet. 4/mmm (4/m 2/m 2/m) : P4/nmm
3.DC.25Daubréeite(BiO)(OH,Cl)Tet. 4/mmm (4/m 2/m 2/m) : P4/nmm
3.DC.25MatlockitePbFClTet. 4/mmm (4/m 2/m 2/m) : P4/nmm
3.DC.25RorisiteCaFClTet.
3.DC.25Zavaritskite(BiO)FTet.
3.DC.25ZhangpeishaniteBaFClTet. 4/mmm (4/m 2/m 2/m) : P4/nmm
3.DC.30NadoritePbSbClO2Orth. mmm (2/m 2/m 2/m) : Cmcm
3.DC.30PeritePbBiClO2Orth. mmm (2/m 2/m 2/m) : Cmcm
3.DC.37CalcioaravaipaitePbCa2AlF9Tric. 1
3.DC.40ThorikositePb3Cl2(OH)(SbO3,AsO3)Tet. 4/mmm (4/m 2/m 2/m) : I4/mmm
3.DC.45MereheaditePb47Cl25(OH)13O24(CO3)(BO3)2Mon. m
3.DC.50BlixitePb2(O,OH)2ClOrth.
3.DC.55PinalitePb3WO5Cl2Orth.
3.DC.60SymesitePb10(SO4)O7Cl4 · H2OTric. 1 : P1
3.DC.65EcdemitePb6Cl4(As2O7)Tet.
3.DC.65HeliophyllitePb6Cl4(As2O7)Orth.
3.DC.70MendipitePb3Cl2O2Orth. 2 2 2 : P21 21 21
3.DC.75DamaraitePb3Cl(OH)O2Orth. mm2 : Pmc21
3.DC.80OnoratoiteSb8Cl2O11Tric. 1 : P1
3.DC.85CotunnitePbCl2Orth. mmm (2/m 2/m 2/m)
3.DC.90PseudocotunniteK2PbCl4Orth.
3.DC.95BarstowitePb4Cl6(CO3) · H2OMon. 2/m : P21/m

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
8.8.17BideauxitePb2AgCl3(F,OH)2Iso. m3m (4/m 3 2/m) : Fd3m
8.8.18BoleiteKPb26Ag9Cu24(OH)48Cl62Iso. m3m (4/m 3 2/m) : Pm3m
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 AravaipaiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Kampf, A.R., Dunn, P.J., Foord, E.E. (1989) Grandreefite, pseudograndreefite, laurelite, and aravaipaite: four new minerals from the Grand Reef mine, Graham County, Arizona. American Mineralogist: 74: 927-933.
Kampf, A.R., Foord, E.E. (1996) Calcioaravaipaite, a new mineral, and associated lead fluoride minerals from the Grand Reef mine, Graham County, Arizona. Mineralogical Record: 27: 293-300.
Anthony, J.W. et al. (1997) Handbook of Mineralogy, Vol. 3, 20.
Kampf, A.R. (2001) The crystal structure of aravaipaite. American Mineralogist: 86: 927-931.
Kampf, A.R., Yang, H., Downs, R.T., Pinch, W.W. (2011) The crystal structures and Raman spectra of aravaipaite and calcioaravaipaite. American Mineralogist: 96: 402-407.

Internet Links for AravaipaiteHide

Localities for AravaipaiteHide

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.
USA (TL)
 
  • Arizona
    • Graham Co.
      • Aravaipa District
        • Santa Teresa Mts
          • Klondyke
            • Grand Reef Mountain
              • Laurel Canyon
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 118; Kampf, A.R., et al (1989), Grandreefite, pseudograndreefite, laurelite, and aravaipaite: Four new minerals from the Grandreef mine, Graham Co., AZ, Am.Min.: 74: 927-933; Min.Rec.: 27: 297.
Mineral and/or Locality  
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