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Barahonaite-(Al)

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Formula:
(Ca,Cu,Na,Fe
3+
 
,Al)
 
12
Al
 
2
(AsO
 
4
)
 
8
(OH,Cl)
 
x
· nH
 
2
O
System:Monoclinic
Name:Named for Antonio Barahona (1937- ), Spanish mineral collector and micromounter, who first noticed that this material might be a new mineral.


Smolianinovite group (?).

The Al analogue of barahonaite-(Fe).
May appear visually similar to attikaite.

Classification of Barahonaite-(Al)

IMA status:Approved 2007
Nickel-Strunz 10th (pending) edition ID:8.CH.60

8 : PHOSPHATES, ARSENATES, VANADATES
C : Phosphates without additional anions, with H2O
H : With large and medium-sized cations, RO4:H2O < 1:1
Dana 8th edition ID:40.6.4.1

40 : HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
6 : (AB)5(XO4)4·xH2O
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Type Occurrence of Barahonaite-(Al)

Type Locality:Dolores prospect, Pastrana, Mazarrón-Águilas, Murcia, Spain

Crystallography of Barahonaite-(Al)

Crystal System:Monoclinic
Class (H-M):2/m - Prismatic
Space Group:P2/b
Cell Parameters:a = 9.972Å, b = 22.44Å, c = 5.272Å
β = 92.9°
Ratio:a:b:c = 0.444 : 1 : 0.235
Unit Cell Volume:V 1,178.21 ų (Calculated from Unit Cell)
X-Ray Powder Diffraction:
d-spacingIntensity
22.0 (100)
11.16 (70)
4.983 (50)
3.655 (25)
3.333 (45)
3.003 (30)
2.767 (30)

Chemical Properties of Barahonaite-(Al)

Formula:
(Ca,Cu,Na,Fe
3+
 
,Al)
 
12
Al
 
2
(AsO
 
4
)
 
8
(OH,Cl)
 
x
· nH
 
2
O
Simplified for copy/paste:(Ca,Cu,Na,Fe3+,Al)12Al2(AsO4)8(OH,Cl)x·nH2O
Essential elements:Al, As, Ca, H, O
All elements listed in formula:Al, As, Ca, Cl, Cu, Fe, H, Na, O

Relationship of Barahonaite-(Al) to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
8.CH.05Walentaite
H(Ca,Mn
2+
 
,Fe
2+
 
)Fe
3+
3
(AsO
 
4
,PO
 
4
)
 
4
· 7H
 
2
O
8.CH.10Anapaite
Ca
 
2
Fe
2+
 
(PO
 
4
)
 
2
· 4H
 
2
O
8.CH.15Picropharmacolite
Ca
 
4
Mg(AsO
 
4
)
 
2
(HAsO
 
4
)
 
2
· 11H
 
2
O
8.CH.20Dittmarite
(NH
 
4
)Mg(PO
 
4
) · H
 
2
O
8.CH.20Niahite
(NH
 
4
)(Mn
2+
 
,Mg)(PO
 
4
) · H
 
2
O
8.CH.25Francoanellite
K
 
3
Al
 
5
(PO
 
4
)
 
2
(HPO
 
4
)
 
3
· 12H
 
2
O
8.CH.25Taranakite
(K,NH
 
4
)Al
 
3
(PO
 
4
)
 
3
(OH) · 9H
 
2
O
8.CH.30Schertelite
(NH
 
4
)
 
2
MgH
 
2
(PO
 
4
)
 
2
· 4H
 
2
O
8.CH.35Hannayite
(NH
 
4
)
 
2
Mg
 
3
H
 
4
(PO
 
4
)
 
4
· 8H
 
2
O
8.CH.40Struvite
(NH
 
4
)Mg(PO
 
4
) · 6H
 
2
O
8.CH.40Struvite-(K)
KMg(PO
 
4
)·6H
 
2
O
8.CH.40Hazenite
KNaMg
 
2
(PO
 
4
)
 
2
· 14H
 
2
O
8.CH.45Rimkorolgite
(Mg,Mn)
 
5
(Ba,Sr,Ca)(PO
 
4
)
 
4
· 8H
 
2
O
8.CH.50Bakhchisaraitsevite
Na
 
2
Mg
 
5
(PO
 
4
)
 
4
· 7H
 
2
O
8.CH.55Fahleite
Zn
 
5
CaFe
 
2
(AsO
 
4
)
 
6
· 14H
 
2
O
8.CH.55Smolyaninovite
(Co,Ni,Mg,Ca)
 
3
(Fe
3+
 
,Al)
 
2
(AsO
 
4
)
 
4
· 11H
 
2
O
8.CH.60Barahonaite-(Fe)
(Ca,Cu,Na,Fe
3+
 
,Al)
 
12
Fe
3+
2
(AsO
 
4
)
 
8
(OH,Cl)
 
x
· nH
 
2
O

Other Names for Barahonaite-(Al)

Synonyms:
Barahonite-(Al)IMA2006-051Unnamed (Ca Arsenate)
Other Languages:
German:Barahonait-(Al)
Simplified Chinese:羟砷铝铜钙石

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 Barahonaite-(Al)

Reference List:

- +
Viñals, J., Jambor, J.L., Raudsepp, M., Roberts, A.C., Grice. J.D., Kokinos, M., Wise, W.S. (2008): Barahonaite-(Al) and barahonaite-(Fe), new Ca-Cu arsenate mineral species, from Murcia Province, southeastern Spain, and Gold Hill, Utah. Canadian Mineralogist, 46, 205-217.

Internet Links for Barahonaite-(Al)

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  • Localities for Barahonaite-(Al)

    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.
    Chile
     
    • Atacama Region
      • Copiapó Province
        • Tierra Amarilla
          • Pampa Larga district
    According to Dr. Tony Kampf, mineral has been confirmed by PXRD analysis; Yang, H., Jenkins, R.A., Downs, R.T., Evans, S.H., Tait, K.T. (2011): Rruffite, Ca2Cu(AsO4)2·2H2O,a new member of the roselite group, from Tierra Amarilla, Chile. Canadian Mineralogist, 49, 877-884
    Greece
     
    • Attikí Prefecture (Attica; Attika)
      • Lavrion District (Laurion; Laurium)
        • Lavrion District Mines
          • Agios Konstantinos [St Constantine] (Kamariza)
            • Kamariza Mines (Kamareza Mines)
    Kolitsch, U., Rieck, B., Brandstätter, F., Schreiber, F., Fabritz, K. H., Blaß, G. & Gröbner, J. (2014): Neufunde aus dem altem Bergbau und den Schlacken von Lavrion (I). Mineralien-Welt 25 (1), 60-75 (in German).
    Spain
     
    • Murcia
      • Mazarrón-Águilas
        • Pastrana
    Viñals, J., Jambor, J.L., Raudsepp, M., Roberts, A.C., Grice. J.D., Kokinos, M., Wise, W.S. (2008): Barahonaite-(Al) and barahonaite-(Fe), new Ca-Cu arsenate mineral species, from Murcia Province, southeastern Spain, and Gold Hill, Utah. Canadian Mineralogist, 46, 205-217.
    USA
     
    • Utah
      • Tooele Co.
        • Deep Creek Mts
          • Gold Hill District (Clifton District)
            • Gold Hill
    Viñals, J., Jambor, J.L., Raudsepp, M., Roberts, A.C., Grice. J.D., Kokinos, M., Wise, W.S. (2008): Barahonaite-(Al) and barahonaite-(Fe), new Ca-Cu arsenate mineral species, from Murcia Province, southeastern Spain, and Gold Hill, Utah. Canadian Mineralogist, 46, 205-217.
    Viñals, J., Jambor, J.L., Raudsepp, M., Roberts, A.C., Grice. J.D., Kokinos, M., Wise, W.S. (2008): Barahonaite-(Al) and barahonaite-(Fe), new Ca-Cu arsenate mineral species, from Murcia Province, southeastern Spain, and Gold Hill, Utah. Canadian Mineralogist, 46, 205-217; Brent Thorne and Joe Marty specimens.
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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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