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Calcioaravaipaite

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Formula:
PbCa
 
2
AlF
 
9
System:TriclinicColour:colorless to white
Hardness:
Name:Named in allusion to its relationship as the CALCIum analogue of Aravaipaite.


Closely related to Aravaipaite (which is Pb-dominant and contains an additional water molecule).

See also Unnamed (Ba-analogue of Calcioaravaipaite).

Classification of Calcioaravaipaite

IMA status:Approved 1994
Strunz 8th edition ID:3/C.04-20
Nickel-Strunz 10th (pending) edition ID:3.DC.37

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

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

Physical Properties of Calcioaravaipaite

Lustre:Vitreous
Diaphaneity (Transparency):Transparent
Colour:colorless to white
Streak:white
Hardness (Mohs):
Cleavage:Distinct/Good
Good on the {100}
Fracture:Conchoidal
Density (measured):4.85 g/cm3
Density (calculated):4.62 g/cm3

Crystallography of Calcioaravaipaite

Crystal System:Triclinic
Class (H-M):1 - Pinacoidal
Cell Parameters:a = 7.72Å, b = 7.51Å, c = 12.2Å
α = 98.86°, β = 96.91°, γ = 90°
Ratio:a:b:c = 1.028 : 1 : 1.625
Unit Cell Volume:V 694.88 ų
X-Ray Powder Diffraction:
d-spacingIntensity
11.9 (100)
3.71 (70)
3.51 (85)
2.981 (60)
2.943 (60)
2.028 (60)
1.971 (60)

Optical Data of Calcioaravaipaite

Type:Biaxial (-)
RI values: nα = 1.510 nβ = 1.528 nγ = 1.531
2V:Measured: 36° , Calculated: 44°
Maximum Birefringence:δ = 0.021

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Low
Dispersion:r > v strong

Chemical Properties of Calcioaravaipaite

Formula:
PbCa
 
2
AlF
 
9
Simplified for copy/paste:PbCa2AlF9
Essential elements:Al, Ca, F, Pb
All elements listed in formula:Al, Ca, F, Pb

Relationship of Calcioaravaipaite 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.35Aravaipaite
Pb
 
3
F
 
3
[AlF
 
6
] · H
 
2
O
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

Other Names for Calcioaravaipaite

Synonyms:
IMA1994-018
Other Languages:
German:Calcioaravaipait
Russian:Кальциоаравайпаит
Spanish:Calcioaravaipaita

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 Calcioaravaipaite

Reference List:

- +
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.

Mineralogical Record: 28: 220.

Kampf, A. R., Merlino, S. & Pasero, M. (2003): Order-disorder approach to calcioaravaipaite, [PbCa2Al(F,OH)9]: The crystal structure of the triclinic MDO polytype. American Mineralogist 88, 430-435.

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 Calcioaravaipaite

Search Engines:
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  • External Links:
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  • Look for Calcioaravaipaite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Calcioaravaipaite details from Handbook of Mineralogy (PDF)
  • Mineral Dealers:
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  • Search for Calcioaravaipaite on Well-Arranged Molecules
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  • Buy fine minerals and gemstones from Pala International
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  • Localities for Calcioaravaipaite

    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.
    Italy
     
    • Campania
      • Naples Province
        • Somma-Vesuvius Complex
    Campostrini, I., Gramaccioli, C. (2005): Artroeite del Monte Somma-Vesuvio: secondo ritrovamento mondiale. Riv. Mineral. Ital., 29, 1: 50-52. ; M. Russo & I. Campostrini (2011): Ammineite, matlockite and post 1944 eruption fumarolic minerals at Vesuvius. Plinius 37, 312.
    USA
     
    • Arizona
      • Graham Co.
        • Aravaipa District
          • Santa Teresa Mts
            • Klondyke
              • Grand Reef Mountain
                • Laurel Canyon
    Kampf, A.R. & E.E. Foord (1996), Calcioaravaipaite a new mineral and associated lead fluoride minerals from the Grand Reef Mine, Graham County, Arizona. Mineralogical Record: 27: 293-300; Grant, Raymond W., Richard A. Bideaux & Sidney A. Williams (2006), Minerals Added to the Arizona List 1995 to 2005: 3.
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    Copyright © Jolyon Ralph and Ida Chau 1993-2014. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. 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 thousands of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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