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Natropharmacoalumite

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Big Photo

María Josefa Mine, Rodalquilar, Níjar, Almería, Andalusia, Spain
© L.C. 2011

Show Natropharmacoalumite Photos (14)



Formula:
NaAl
 
4
(AsO
 
4
)
 
3
(OH)
 
4
 · 4H
 
2
O
System:Isometric
Member of:Pharmacoalumite Group > Pharmacosiderite Supergroup
Isostructural with:Pharmacoalumite


Pharmacosiderite Group.

Classification of Natropharmacoalumite

IMA status:Approved 2010
Nickel-Strunz 10th (pending) edition ID:8.DK.12

8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
K : With large and medium-sized cations, (OH, etc.):RO4 > 1:1 and < 2:1
Dana 8th edition ID:42.8.1b.2

42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
8 : (AB)5(XO4)3Zq·xH2O
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Type Occurrence of Natropharmacoalumite

Type Locality:María Josefa Mine, Rodalquilar, Níjar, Almería, Andalusia, Spain
Place of Conservation of Type Material:Natural History Museum, London, England, catalog no. BM 2009,161

Crystallography of Natropharmacoalumite

Crystal System:Isometric
Class (H-M):4 3m - Hextetrahedral
Space Group:P4 3m
Space Group Setting:P4 3m
Cell Parameters:a = 7.7280(3) Å
Unit Cell Volume:V 461.53 ų (Calculated from Unit Cell)
X-Ray Powder Diffraction:
d-spacingIntensity
7.759 (100)
4.473 (40)
3.870 (50)
3.459 (6)
3.158 (6)
2.736 (6)
2.446 (9)
2.331 (12)

Chemical Properties of Natropharmacoalumite

Formula:
NaAl
 
4
(AsO
 
4
)
 
3
(OH)
 
4
 · 4H
 
2
O
Essential elements:Al, As, H, Na, O
All elements listed in formula:Al, As, H, Na, O

Relationship of Natropharmacoalumite to other Species

Member of:Pharmacoalumite Group > Pharmacosiderite Supergroup
Other Members of Group:

- +
Bariopharmacoalumite
Ba
 
0.5
Al
 
4
(AsO
 
4
)
 
3
(OH)
 
4
 · 4H
 
2
O
Pharmacoalumite
KAl
 
4
(AsO
 
4
)
 
3
(OH)
 
4
 · 6.5H
 
2
O
Related Minerals - Nickel-Strunz Grouping):

- +
8.DK.Richelsdorfite
Ca
 
2
Cu
 
5
Sb(AsO
 
4
)
 
4
(OH)
 
6
Cl · 6H
 
2
O
8.DK.10Bariopharmacosiderite
Ba
 
0.5
Fe
3+
4
(AsO
 
4
)
 
3
(OH)
 
4
 · 5H
 
2
O
8.DK.10Pharmacosiderite
KFe
3+
4
(AsO
 
4
)
 
3
(OH)
 
4
 · 6-7H
 
2
O
8.DK.10Natropharmacosiderite
(Na,K)Fe
3+
4
(AsO
 
4
)
 
3
(OH)
 
4
 · 6-7H
 
2
O
8.DK.10Hydroniumpharmacosiderite
(H
 
3
O)Fe
 
4
(AsO
 
4
)
 
3
(OH)
 
4
 · 4H
 
2
O
8.DK.12Pharmacoalumite
KAl
 
4
(AsO
 
4
)
 
3
(OH)
 
4
 · 6.5H
 
2
O
8.DK.12Bariopharmacoalumite
Ba
 
0.5
Al
 
4
(AsO
 
4
)
 
3
(OH)
 
4
 · 4H
 
2
O
8.DK.15Burangaite
NaFe
2+
 
Al
 
5
(PO
 
4
)
 
4
(OH)
 
6
 · 2H
 
2
O
8.DK.15Dufrénite
Ca
 
0.5
Fe
2+
 
Fe
3+
5
(PO
 
4
)
 
4
(OH)
 
6
 · 2H
 
2
O
8.DK.15Natrodufrénite
NaFe
2+
 
Fe
3+5(PO4)4(OH)6.2H2O
 
8.DK.15Matioliite
NaMgAl
 
5
(PO
 
4
)
 
4
(OH)
 
6
 · 2H
 
2
O
8.DK.15Gayite
NaMn
2+
 
Fe
3+
5
(PO
 
4
)
 
4
(OH)
 
6
 · 2H
 
2
O
8.DK.20Kidwellite
NaFe
3+
9
(PO
 
4
)
 
6
(OH)
 
11
 · 3H
 
2
O
8.DK.25Bleasdaleite
(Ca,Fe
3+
 
)
 
2
Cu
 
5
(Bi,Cu)(PO
 
4
)
 
4
(H
 
2
O,OH,Cl)
 
13
8.DK.30Matulaite
(Fe
3+
 
,Al)Al
 
7
(PO
 
4
)
 
4
(PO
 
3
OH)
 
2
(OH)
 
8
(H
 
2
O)
 
8
 · 8H
 
2
O
8.DK.35Krasnovite
Ba(Al,Mg)(PO
 
4
,CO
 
3
)(OH)
 
2
 · H
 
2
O

Other Names for Natropharmacoalumite

Synonyms:
IMA2010-009
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 Natropharmacoalumite

Reference List:

- +
Rumsey, M.S., Mills, S.J., Spratt, J. (2010): Natropharmacoalumite, NaAl4[(OH)4(AsO4)3].4H2O, a new mineral of the pharmacosiderite supergroup and the renaming of aluminopharmacosiderite to pharmacoalumite. Mineralogical Magazine, 74, 929-936

Internet Links for Natropharmacoalumite

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    • Localities for Natropharmacoalumite

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    (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.
    Spain
     
    • Andalusia
      • Almería
        • Níjar
          • Rodalquilar
    		CNMNC Newsletter, June 2010, 578; Min.Mag, 74,577-579(2010)
    Mineral and/or Locality
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