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Barahonaite-(Al)

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Formula:
(Ca,Cu,Na,Fe3+,Al)12Al2(AsO4)8(OH,Cl)x · nH2O
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)

Approved 2007
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
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)

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 Data:
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,Fe3+,Al)12Al2(AsO4)8(OH,Cl)x · nH2O
Essential elements:
All elements listed in formula:

Relationship of Barahonaite-(Al) to other Species

8.CH.05WalentaiteH(Ca,Mn2+,Fe2+)Fe33+(AsO4,PO4)4 · 7H2O
8.CH.10AnapaiteCa2Fe2+(PO4)2 · 4H2O
8.CH.15PicropharmacoliteCa4Mg(AsO4)2(HAsO4)2 · 11H2O
8.CH.20Dittmarite(NH4)Mg(PO4) · H2O
8.CH.20Niahite(NH4)(Mn2+,Mg)(PO4) · H2O
8.CH.25FrancoanelliteK3Al5(PO4)2(HPO4)3 · 12H2O
8.CH.25Taranakite(K,NH4)Al3(PO4)3(OH) · 9H2O
8.CH.30Schertelite(NH4)2MgH2(PO4)2 · 4H2O
8.CH.35Hannayite(NH4)2Mg3H4(PO4)4 · 8H2O
8.CH.40Struvite(NH4)Mg(PO4) · 6H2O
8.CH.40Struvite-(K)KMg(PO4)·6H2O
8.CH.40HazeniteKNaMg2(PO4)2 · 14H2O
8.CH.45Rimkorolgite(Mg,Mn)5(Ba,Sr,Ca)(PO4)4 · 8H2O
8.CH.50BakhchisaraitseviteNa2Mg5(PO4)4 · 7H2O
8.CH.55FahleiteZn5CaFe2(AsO4)6 · 14H2O
8.CH.55Smolyaninovite(Co,Ni,Mg,Ca)3(Fe3+,Al)2(AsO4)4 · 11H2O
8.CH.60Barahonaite-(Fe)(Ca,Cu,Na,Fe3+,Al)12Fe23+(AsO4)8(OH,Cl)x · nH2O

Other Names for Barahonaite-(Al)

Name in Other Languages:
Simplified Chinese:羟砷铝铜钙石

Other Information

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 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)

Localities for Barahonaite-(Al)

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 for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? 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 (TL)
 
  • 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.
Mineral and/or Locality  
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