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Hydroniumpharmacosiderite

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


Pharmacosiderite Group.

Classification of Hydroniumpharmacosiderite

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

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:42.8.1a.4

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

Type Locality:Cornwall, England, UK
Place of Conservation of Type Material:Harvard Mineralogical Museum, cataloue no. 142784

Crystallography of Hydroniumpharmacosiderite

Crystal System:Isometric
Class (H-M):4 3m - Hextetrahedral
Space Group:P4 3m
Space Group Setting:P4 3m
Cell Parameters:a = 7.9587(2) Å
Unit Cell Volume:V 504.11 ų (Calculated from Unit Cell)
X-Ray Powder Diffraction:
d-spacingIntensity
8.050 (100)
4.628 (22)
4.005 (14)
3.265 (35)
2.830 (23)
2.528 (19)
2.412 (30)
1.787 (14)

Chemical Properties of Hydroniumpharmacosiderite

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

Relationship of Hydroniumpharmacosiderite to other Species

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

- +
Bariopharmacosiderite
Ba
 
0.5
Fe
3+
4
(AsO
 
4
)
 
3
(OH)
 
4
 · 5H
 
2
O
Natropharmacosiderite
(Na,K)Fe
3+
4
(AsO
 
4
)
 
3
(OH)
 
4
 · 6-7H
 
2
O
Pharmacosiderite
KFe
3+
4
(AsO
 
4
)
 
3
(OH)
 
4
 · 6-7H
 
2
O
Strontiopharmacosiderite
Sr, Fe, As, O, H
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.12Pharmacoalumite
KAl
 
4
(AsO
 
4
)
 
3
(OH)
 
4
 · 6.5H
 
2
O
8.DK.12Natropharmacoalumite
NaAl
 
4
(AsO
 
4
)
 
3
(OH)
 
4
 · 4H
 
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 Hydroniumpharmacosiderite

Synonyms:
IMA2010-014
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 Hydroniumpharmacosiderite

Reference List:

- +
Mills, S.J., et al.(2010): The Structure of H3O+-exchanged pharmacosiderite, Mineralogical Magazine 74,487-492.

Mills, S.J., et al (2010): Hydroniumpharmacosiderite, IMA 2010-014. CNMNC Newsletter, June 2010, p.579; Mineralogical Magazine 74,577-579

Internet Links for Hydroniumpharmacosiderite

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    • Localities for Hydroniumpharmacosiderite

    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
     
    • Coquimbo Region
      • Elqui Province
        • El Indio deposit
          • Tambo Mine
    		Mills, S. J., Kampf, A. R., Williams, P. A., Leverett, P., Poirier, G., Raudsepp, M. & Francis, C. A. (2010): Hydroniumpharmacosiderite, a new member of the pharmacosiderite supergroup from Cornwall, UK: structure and description. Mineralogical Magazine, 74, 863-869. (p. 868)
    UK
     
    • England
    		Mills, S. J., Kampf, A. R., Williams, P. A., Leverett, P., Poirier, G., Raudsepp, M. & Francis, C. A. (2010): Hydroniumpharmacosiderite, a new member of the pharmacosiderite supergroup from Cornwall, UK: structure and description. Mineralogical Magazine, 74, 863-869.
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