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Aravaipaite

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Formula:
Pb
 
3
F
 
3
[AlF
 
6
] · H
 
2
O
System:TriclinicColour:Colourless
Hardness:2
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).

Classification of Aravaipaite

IMA status:Approved 1988
Strunz 8th edition ID:3/C.04-10
Nickel-Strunz 10th (pending) edition ID:3.DC.35

3 : HALIDES
D : Oxyhalides, hydroxyhalides and related double halides
C : With Pb (As,Sb,Bi), without Cu
Dana 8th edition ID:11.6.19.1

11 : HALIDE COMPLEXES
6 : Aluminofluorides - Isolated Octahedra
Hey's CIM Ref.:8.8.19

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

Type Locality:Grand Reef Mine (Aravaipa Mine; Lead Jewel; Joe Rubal Mine; Vivian Mine; Calistoga Mining & Development Co. Mine; Bringham Silver and Lead Mine), Laurel Canyon, Grand Reef Mountain, Klondyke, Santa Teresa Mts, Aravaipa District, Graham Co., Arizona, USA
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)
Year of Discovery:1988
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:
QuartzPseudograndreefiteLinariteLaureliteGrandreefite
GalenaFluoriteCaledoniteAnglesite

Physical Properties of Aravaipaite

Lustre:Vitreous, Pearly
Diaphaneity (Transparency):Transparent
Colour:Colourless
Streak:White
Hardness (Mohs):2
Tenacity:Elastic
Cleavage:Perfect
micaceous on {010}; good on {100}, {001}, {101}, {10_1}
Fracture:Irregular/Uneven
Density (calculated):6.37 g/cm3

Crystallography of Aravaipaite

Crystal System:Triclinic
Cell Parameters:a = 5.842Å, b = 25.2Å, c = 5.652Å
α = 93.84°, β = 90.14°, γ = 85.28°
Ratio:a:b:c = 0.232 : 1 : 0.224
Unit Cell Volume: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 Diffraction:
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

Optical Data of Aravaipaite

Type:Biaxial (-)
RI values: nα = 1.678 nβ = 1.690 nγ = 1.694
2V:Measured: 70° to 73°, Calculated: 66°
Maximum Birefringence:δ = 0.016

Chart 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 Aravaipaite

Formula:
Pb
 
3
F
 
3
[AlF
 
6
] · H
 
2
O
Simplified for copy/paste:Pb3F3[AlF6]·H2O
Essential elements:Al, F, H, O, Pb
All elements listed in formula:Al, F, H, O, Pb
Analytical Data:Electron microprobe analysis of material from the type locality; water content estimated from the IR spectrum
Pb (73.8)
Al (3.6)
F (21.0)
H2O (3.0)

sum 101.4 wt.-%
Empirical Formula:
Pb
 
2.90
Al
 
1.09
F
 
9
· 1.36H
 
2
O

Relationship of Aravaipaite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
3.DC.05Laurionite
PbCl(OH)
3.DC.05Paralaurionite
PbCl(OH)
3.DC.10Fiedlerite
Pb
 
3
FCl
 
4
(OH) · H
 
2
O
3.DC.15Penfieldite
Pb
 
2
Cl
 
3
(OH)
3.DC.20Laurelite
Pb
 
7
F
 
12
Cl
 
2
3.DC.25Bismoclite
(BiO)Cl
3.DC.25Daubréeite
(BiO)(OH,Cl)
3.DC.25Matlockite
PbFCl
3.DC.25Rorisite
CaFCl
3.DC.25Zavaritskite
(BiO)F
3.DC.25Zhangpeishanite
BaFCl
3.DC.30Nadorite
PbSbClO
 
2
3.DC.30Perite
PbBiClO
 
2
3.DC.37Calcioaravaipaite
PbCa
 
2
AlF
 
9
3.DC.40Thorikosite
Pb
 
3
Cl
 
2
(OH)(SbO
 
3
,AsO
 
3
)
3.DC.45Mereheadite
Pb
 
47
Cl
 
25
(OH)
 
13
O
 
24
(CO
 
3
)(BO
 
3
)
 
2
3.DC.50Blixite
Pb
 
2
(O,OH)
 
2
Cl
3.DC.55Pinalite
Pb
 
3
WO
 
5
Cl
 
2
3.DC.60Symesite
Pb
 
10
(SO
 
4
)O
 
7
Cl
 
4
· H
 
2
O
3.DC.65Ecdemite
Pb
 
6
Cl
 
4
(As
 
2
O
 
7
)
3.DC.65Heliophyllite
Pb
 
6
Cl
 
4
(As
 
2
O
 
7
)
3.DC.70Mendipite
Pb
 
3
Cl
 
2
O
 
2
3.DC.75Damaraite
Pb
 
3
Cl(OH)O
 
2
3.DC.80Onoratoite
Sb
 
8
Cl
 
2
O
 
11
3.DC.85Cotunnite
PbCl
 
2
3.DC.90Pseudocotunnite
K
 
2
PbCl
 
4
3.DC.95Barstowite
Pb
 
4
Cl
 
6
(CO
 
3
) · H
 
2
O
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
8.8.17Bideauxite
Pb
 
2
AgCl
 
3
(F,OH)
 
2
8.8.18Boleite
KPb
 
26
Ag
 
9
Cu
 
24
(OH)
 
48
Cl
 
62
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 Aravaipaite

Synonyms:
IMA1988-021
Other Languages:
German:Aravaipait
Russian:Аравайпаит
Spanish:Aravaipaita

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 Aravaipaite

Reference List:

- +
Kampf, A. R., Dunn, P. J. and 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. and 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 Aravaipaite

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

    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.
    USA
     
    • 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.
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