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Barahonaite-(Al)

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Big Photo

Gold Hill Mine (Western Utah Mine), Gold Hill, Gold Hill District (Clifton District), Deep Creek Mts, Tooele Co., Utah, USA
© Brent Thorne 2007

Show Barahonaite-(Al) Photos (12)



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).

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 {P1 1 2/b} {P2/c} {P1 2/c 1}{P2/a}
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
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
8.CH.55Smolianinovite
(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:

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.
    Hide Locality List
    (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
    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
              • Gold Hill Mine (Western Utah Mine)
    		 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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