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Ferristrunzite

Big Photo

Mont-des-Groseillers, Blaton, Mons, Hainaut (Henegouwen; Hennegau) Province, Belgium
© JM. Johannet

Show Ferristrunzite Photos (26)
Formula:
Fe
3+
3
[OH|PO
 
4
]
 
2
 · 5(H
 
2
O,OH)
System:TriclinicHardness:4
This page provides mineralogical data about Ferristrunzite.

Classification of Ferristrunzite

IMA status:Approved 1986
Strunz 8th edition ID:7/D.11-30
Nickel-Strunz 10th (pending) edition ID:8.DC.25

8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
C : With only medium-sized cations, (OH, etc.):RO4 = 1:1 and < 2:1
Dana 8th edition ID:42.11.9.3

42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
11 : (AB)3(XO4)2Zq·xH2O
Hey's CIM Ref.:19.13.8

19 : Phosphates
13 : Phosphates of Fe alone
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Type Occurrence of Ferristrunzite

Type Locality:Nimy - Tournai Channel, Blaton, Mons, Hainaut (Henegouwen; Hennegau) Province, Belgium
Year of Discovery:1987

Physical Properties of Ferristrunzite

Hardness (Mohs):4

Crystallography of Ferristrunzite

Crystal System:Triclinic
Cell Parameters:a = 10.01Å, b = 9.73Å, c = 7.33Å
α = 90.5°, β = 97°, γ = 116.4°
Ratio:a:b:c = 1.029 : 1 : 0.753
Unit Cell Volume:V 633.11 ų (Calculated from Unit Cell)

Optical Data of Ferristrunzite

Type:Biaxial (+)
RI values: nα = 1.664 nβ = 1.698 nγ = 1.757
2V:Measured: 77° , Calculated: 78°
Maximum Birefringence:δ = 0.093

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:High
Dispersion:strong

Chemical Properties of Ferristrunzite

Formula:
Fe
3+
3
[OH|PO
 
4
]
 
2
 · 5(H
 
2
O,OH)
Essential elements:Fe, H, O, P
All elements listed in formula:Fe, H, O, P

Relationship of Ferristrunzite to other Species

Related to:
  • Strunzite Group
    • Related Minerals - Nickel-Strunz Grouping):

    - +
    8.DC.05Nissonite
    Cu
     
    2
    		Mg
     
    2
    		[OH|PO
     
    4
    		]
     
    2
    		 · 5H
     
    2
    		O
    8.DC.07Euchroite
    Cu
     
    2
    		[OH|AsO
     
    4
    		] · 3H
     
    2
    		O
    8.DC.10Legrandite
    Zn
     
    2
    		[OH|AsO
     
    4
    		] · H
     
    2
    		O
    8.DC.12Strashimirite
    Cu
     
    8
    		[OH|AsO
     
    4
    		]
     
    4
    		 · 5H
     
    2
    		O
    8.DC.15Arthurite
    CuFe
    3+
    2
    		[(OH,O)|(AsO
     
    4
    		,PO
     
    4
    		,SO
     
    4
    		)]
     
    2
    		 · 4H
     
    2
    		O
    8.DC.15Earlshannonite
    Mn
    2+
     
    		Fe
    3+
    2
    		(PO
     
    4
    		)
     
    2
    		(OH)
     
    2
    		·4H
     
    2
    		O
    8.DC.15Ojuelaite
    ZnFe
    3+
    2
    		(AsO
     
    4
    		)
     
    2
    		(OH)
     
    2
    		 · 4H
     
    2
    		O
    8.DC.15Whitmoreite
    Fe
    2+
     
    		Fe
    3+
    2
    		(PO
     
    4
    		)
     
    2
    		(OH)
     
    2
    		 · 4H
     
    2
    		O
    8.DC.15Cobaltarthurite
    (Co,Mg)Fe
    3+
    2
    		(AsO
     
    4
    		)
     
    2
    		(OH)
     
    2
    		 · 4H
     
    2
    		O
    8.DC.15Bendadaite
    Fe
    2+
     
    		Fe
    3+
    2
    		(AsO
     
    4
    		)
     
    2
    		(OH)
     
    2
    		 · 4H
     
    2
    		O
    8.DC.15IMA 2007-057
    CuFe
    3+
    2
    		(PO
     
    4
    		)
     
    2
    		(OH)
     
    2
    		·4H
     
    2
    		O
    8.DC.17Kleemanite
    ZnAl
     
    2
    		[OH|PO
     
    4
    		]
     
    2
    		 · 3H
     
    2
    		O
    8.DC.20Bermanite
    Mn
    2+
     
    		Mn
    3+
    2
    		[OH|PO
     
    4
    		]
     
    2
    		 · 4H
     
    2
    		O
    8.DC.22Kovdorskite
    Mg
     
    2
    		(PO
     
    4
    		)(OH)·3H
     
    2
    		O
    8.DC.25Ferrostrunzite
    Fe
    2+
     
    		Fe
    3+
    2
    		[OH|PO
     
    4
    		]
     
    2
    		 · 6H
     
    2
    		O
    8.DC.25Metavauxite
    Fe
    2+
     
    		Al
     
    2
    		[OH|PO
     
    4
    		]
     
    2
    		 · 8H
     
    2
    		O
    8.DC.25Strunzite
    Mn
    2+
     
    		Fe
    3+
    2
    		[OH|PO
     
    4
    		]
     
    2
    		 · 6H
     
    2
    		O
    8.DC.27Beraunite
    Fe
    2+
     
    		Fe
    3+
    5
    		[(OH)
     
    5
    		|(PO
     
    4
    		)
     
    4
    		] · 4H
     
    2
    		O
    8.DC.30Gordonite
    MgAl
     
    2
    		[OH|PO
     
    4
    		]
     
    2
    		 · 8H
     
    2
    		O
    8.DC.30Laueite
    Mn
    2+
     
    		Fe
    3+
    2
    		[OH|PO
     
    4
    		]
     
    2
    		 · 8H
     
    2
    		O
    8.DC.30Mangangordonite
    Mn
    2+
     
    		Al
     
    2
    		[OH|PO
     
    4
    		]
     
    2
    		 · 8H
     
    2
    		O
    8.DC.30Paravauxite
    Fe
    2+
     
    		Al
     
    2
    		[OH|PO
     
    4
    		]
     
    2
    		 · 8H
     
    2
    		O
    8.DC.30Pseudolaueite
    Mn
    2+
     
    		Fe
    3+
    2
    		[OH|PO
     
    4
    		]
     
    2
    		 · 8H
     
    2
    		O
    8.DC.30Sigloite
    Fe
    3+
     
    		Al
     
    2
    		[(OH)
     
    3
    		|(PO
     
    4
    		)
     
    2
    		] · 7H
     
    2
    		O
    8.DC.30Stewartite
    Mn
    2+
     
    		Fe
    3+
    2
    		[OH|PO
     
    4
    		]
     
    2
    		 · 8H
     
    2
    		O
    8.DC.30Ushkovite
    MgFe
    3+
    2
    		[PO
     
    4
    		]
     
    2
    		(OH)
     
    2
    		 · 8H
     
    2
    		O
    8.DC.30Ferrolaueite
    Fe
    2+
     
    		Fe
    3+
    2
    		(PO
     
    4
    		)
     
    2
    		(OH)
     
    2
    		 · 8H
     
    2
    		O
    8.DC.30Kastningite
    (Mn
    2+
     
    		,Fe
    2+
     
    		,Mg)Al
     
    2
    		[OH|PO
     
    4
    		]
     
    2
    		 · 8H
     
    2
    		O
    8.DC.30Maghrebite
    MgAl
     
    2
    		[OH|AsO
     
    4
    		]
     
    2
    		 · 8H
     
    2
    		O
    8.DC.32Tinticite
    Fe
    3+
    4
    		[OH|PO
     
    4
    		]
     
    3
    		 · 5H
     
    2
    		O
    8.DC.35Vauxite
    Fe
    2+
     
    		Al
     
    2
    		[OH|PO
     
    4
    		]
     
    2
    		 · 6H
     
    2
    		O
    8.DC.37Vantasselite
    Al
     
    4
    		[OH|PO
     
    4
    		]
     
    3
    		 · 9H
     
    2
    		O
    8.DC.40Cacoxenite
    Fe
    3+
    24
    		Al[(OH)
     
    12
    		|O
     
    6
    		|(PO
     
    4
    		)
     
    17
    		] · 17H
     
    2
    		O
    8.DC.45Gormanite
    (Fe
    2+
     
    		,Mg)
     
    3
    		(Al,Fe
    3+
     
    		)
     
    4
    		[(OH)
     
    3
    		|(PO
     
    4
    		)
     
    2
    		]
     
    2
    		 · 2H
     
    2
    		O
    8.DC.45Souzalite
    (Mg,Fe
    2+
     
    		)
     
    3
    		(Al,Fe
    3+
     
    		)
     
    4
    		[(OH)
     
    3
    		|(PO
     
    4
    		)
     
    2
    		]
     
    2
    		 · 2H
     
    2
    		O
    8.DC.47Kingite
    Al
     
    3
    		[(OH)
     
    3
    		|(PO
     
    4
    		)
     
    2
    		] · 9H
     
    2
    		O
    8.DC.50Wavellite
    Al
     
    3
    		[(OH,F)
     
    3
    		|(PO
     
    4
    		)
     
    2
    		] · 5H
     
    2
    		O
    8.DC.50Allanpringite
    Fe
    3+
    3
    		[(OH)
     
    3
    		|(PO
     
    4
    		)
     
    2
    		] · 5H
     
    2
    		O
    8.DC.52Kribergite
    Al
     
    5
    		[(OH)
     
    4
    		|SO
     
    4
    		|(PO
     
    4
    		)
     
    3
    		] · 4H
     
    2
    		O
    8.DC.55Mapimite
    Zn
     
    2
    		Fe
    3+
    3
    		[(OH)
     
    4
    		|(AsO
     
    4
    		)
     
    3
    		] · 10H
     
    2
    		O
    8.DC.57Ogdensburgite
    Ca
     
    2
    		Fe
    3+
    4
    		(Zn,Mn
    2+
     
    		)[(OH)
     
    3
    		|(AsO
     
    4
    		)
     
    2
    		]
     
    2
    		 · 6H
     
    2
    		O
    8.DC.60Nevadaite
    (Cu
    2+
     
    		,Al,V
    3+
     
    		)
     
    6
    		Al
     
    8
    		(PO
     
    4
    		)
     
    8
    		F
     
    8
    		(OH)
     
    2
    		(H
     
    2
    		O)
     
    22
    8.DC.60Cloncurryite
    (Cu,VO)Al
     
    2
    		[(F,OH)|PO
     
    4
    		]
     
    2
    		 · 4.5-5H
     
    2
    		O
    Related Minerals - Hey's Index Grouping:

    - +
    19.13.1Barbosalite
    Fe
    2+
     
    		Fe
    3+
    2
    		[OH|PO
     
    4
    		]
     
    2
    19.13.2Strengite
    FePO
     
    4
    		·2H
     
    2
    		O
    19.13.3Phosphosiderite
    FePO
     
    4
    		·2H
     
    2
    		O
    19.13.4Dufrénite
    Ca
     
    0.5
    		Fe
    2+
     
    		Fe
    3+
    5
    		[(OH)
     
    3
    		|(PO
     
    4
    		)
     
    2
    		]
     
    2
    		 · 2H
     
    2
    		O
    19.13.5Giniite
    Fe
    2+
     
    		Fe
    3+
    4
    		[(OH)
     
    5
    		|(PO
     
    4
    		)
     
    3
    		] · 2H
     
    2
    		O
    19.13.6Whitmoreite
    Fe
    2+
     
    		Fe
    3+
    2
    		(PO
     
    4
    		)
     
    2
    		(OH)
     
    2
    		 · 4H
     
    2
    		O
    19.13.7Tinticite
    Fe
    3+
    4
    		[OH|PO
     
    4
    		]
     
    3
    		 · 5H
     
    2
    		O
    19.13.9Ferrostrunzite
    Fe
    2+
     
    		Fe
    3+
    2
    		[OH|PO
     
    4
    		]
     
    2
    		 · 6H
     
    2
    		O
    19.13.10Beraunite
    Fe
    2+
     
    		Fe
    3+
    5
    		[(OH)
     
    5
    		|(PO
     
    4
    		)
     
    4
    		] · 4H
     
    2
    		O
    19.13.11Vivianite
    Fe
    2+
    3
    		(PO
     
    4
    		)
     
    2
    		·8H
     
    2
    		O
    19.13.12Metavivianite
    Fe
    2+
    3-x
    		Fe
    3+
    x
    		(PO
     
    4
    		)
     
    2
    		(OH)x·(8-x)H
     
    2
    		O

    Other Names for Ferristrunzite

    Synonyms:
    IMA1986-023
    Other Languages:
    German:Ferristrunzit
    Spanish:Ferristrunzita

    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 Ferristrunzite

    Reference List:American Mineralogist: 74: 502.

    Articles/Blogs about Ferristrunzite

    Internet Links for Ferristrunzite

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    Localities for Ferristrunzite

    Hide Locality List
    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.
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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.
    Belgium
     
    • Hainaut (Henegouwen; Hennegau) Province
      • Mons
        • Blaton
    		No reference listed
    NJMM (1987), 453
    • Namur Province
      • Anhée
    		No reference listed
    Germany
     
    • Bavaria
      • Upper Palatinate
        • Oberpfälzer Wald
          • Vohenstrauß
            • Waidhaus
    		Wittern: "Mineralfundorte in Deutschland", 2001
    • North Rhine-Westphalia
      • Wuppertal
        • Aprath castle
    		Emser Hefte 1988(4), 35-40
    UK
     
    • England
      • Cornwall
        • St Agnes District
          • Perranzabuloe
    		No reference listed
    USA
     
    • Wisconsin
      • Rusk Co.
        • Ladysmith
    		www.uwrf.edu/~wc01/ferristrunzite.htm
    Mineral and/or Locality
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