Ferristrunzite (original) (raw)

A valid IMA mineral species

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About FerristrunziteHide

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Formula:

Fe3+Fe3+2(PO4)2(OH)3 · 5H2O

Colour:

Pale yellow to creamy white, tan to very light brown

Lustre:

Sub-Vitreous, Resinous, Waxy, Silky, Dull

Specific Gravity:

2.38 - 2.50

Name:

Named in 1987 by Donald R. Peacor, Pete J. Dunn, William B. Simmons, and Robert A. Ramik for its chemical relationship to strunzite.

Not to be confused with ferrostrunzite (which contains both di- and trivalent Fe).

Unique IdentifiersHide

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Long-form identifier:

mindat:1:1:1500:0

42840caa-36d3-42a2-91f7-4877b920a4cc

IMA Classification of FerristrunziteHide

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Type description reference:

Peacor, D.R., Dunn, P.J., Simmons, W.B., Ramik, R.A. (1987) Ferristrunzite, a new member of the strunzite group, from Blaton, Belgium. Neues Jahrbuch für Mineralogie, Monatshefte 1987, Heft 10, 453-457.

Classification of FerristrunziteHide

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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

42.11.9.3

42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
11 : (AB)3(XO4)2Zq·xH2O

19.13.8

19 : Phosphates
13 : Phosphates of Fe alone

Mineral SymbolsHide

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As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

Symbol Source Reference
Fstz IMA–CNMNC Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Pronunciation of FerristrunziteHide

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Pronunciation:

Play Recorded by Country
Sorry, your browser doesn't support HTML5 audio. Jolyon Ralph United Kingdom

Physical Properties of FerristrunziteHide

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Sub-Vitreous, Resinous, Waxy, Silky, Dull

Transparency:

Transparent, Translucent

Colour:

Pale yellow to creamy white, tan to very light brown

Cleavage:

Distinct/Good
One, probable, parallel X-Z

Density:

2.38 - 2.50 g/cm3 (Measured) 2.55 g/cm3 (Calculated)

Optical Data of FerristrunziteHide

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RI values:

_n_α = 1.664 _n_β = 1.698 _n_γ = 1.757

2V:

Measured: 77° , Calculated: 78°

δ = 0.093

Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.

Optical Extinction:

Z^c ~ 17°

Comments:

X = greenish-yellow, Z = brownish yellow

Chemistry of FerristrunziteHide

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Mindat Formula:

Fe3+Fe3+2(PO4)2(OH)3 · 5H2O

Chemical AnalysisHide

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Sample references:

ID Locality Reference Notes
1 Mont-des-Groseillers, Blaton, Bernissart, Hainaut, Wallonia, Belgium Peacor, D.R., Dunn, P.J., Simmons, W.B., Ramik, R.A. (1987) Ferristrunzite, a new member of the strunzite group, from Blaton, Belgium. Neues Jahrbuch für Mineralogie, Monatshefte 1987, Heft 10, 453-457.

Crystallography of FerristrunziteHide

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Cell Parameters:

a = 10.012 Å, b = 9.732 Å, c = 7.334 Å
α = 90.50°, β = 96.99°, γ = 116.43°

Ratio:

a:b:c = 1.029 : 1 : 0.754

Unit Cell V:

633.56 ų (Calculated from Unit Cell)

Comment:

Point Group: 1 or 1; Space Group: P1 or P1.

X-Ray Powder DiffractionHide

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Powder Diffraction Data:

d-spacing Intensity
8.87 Å (80)
5.34 Å (100)
4.48 Å (20)
4.20 Å (30)
3.442 Å (30)
3.387 Å (30)
3.267 Å (40)

Geological EnvironmentHide

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Geological Setting:

Granite pegmatites, sedimentary phosphate nodules.

Type Occurrence of FerristrunziteHide

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General Appearance of Type Material:

Tan radiating acicular crystals.

Place of Conservation of Type Material:

National Museum of Natural History (Smithsonian Institution), Washington, D.C., USA, catalogue number 162499.

Geological Setting of Type Material:

Fracture filling in a sedimentary rock.

Associated Minerals at Type Locality:

Reference:

Peacor, D.R., Dunn, P.J., Simmons, W.B., Ramik, R.A. (1987) Ferristrunzite, a new member of the strunzite group, from Blaton, Belgium. Neues Jahrbuch für Mineralogie, Monatshefte 1987, Heft 10, 453-457.

Synonyms of FerristrunziteHide

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Other Language Names for FerristrunziteHide

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Relationship of Ferristrunzite to other SpeciesHide

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Other Members of this group:

Common AssociatesHide

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Associated Minerals Based on Photo Data:

Related Minerals - Strunz-mindat GroupingHide

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8.DC. Césarferreiraite Fe2+ Fe3+2(AsO4)2(OH)2 · 8H2O Tric. 1 : _P_1
8.DC. Ferrivauxite Fe3+Al2(PO4)2(OH)3 · 5H2O Tric. 1 : _P_1
8.DC. Ianbruceite Zn2(AsO4)(OH) · 3H2O Mon. 2/m : _P_21/b
8.DC.05 Nissonite Cu2Mg2(PO4)2(OH)2 · 5H2O Mon. 2/m : _B_2/b
8.DC.07 Euchroite Cu2(AsO4)(OH) · 3H2O Orth. 222 : _P_212121
8.DC.10 Legrandite Zn2(AsO4)(OH) · H2O Mon. 2/m : _P_21/b
8.DC.12 Strashimirite Cu8(AsO4)4(OH)4 · 5H2O Mon.
8.DC.15 Earlshannonite Mn2+Fe3+2(PO4)2(OH)2 · 4H2O Mon. 2/m : _P_21/b
8.DC.15 Kunatite CuFe3+2(PO4)2(OH)2 · 4H2O Mon. 2/m : _P_21/b
8.DC.15 UM2006-27-PO:FeHZn ZnFe3+2(PO4)2(OH)2 · 4H2O Mon.
8.DC.15 UKI-2006-(PO:AlCuFeH) Fe2+Al3+2(PO4)2(OH)2 · 4H2O
8.DC.15 Cobaltarthurite CoFe3+2(AsO4)2(OH)2 · 4H2O Mon. 2/m : _P_21/b
8.DC.15 Arthurite CuFe3+2(AsO4)2(OH)2 · 4H2O Mon. 2/m : _P_21/b
8.DC.15 Ojuelaite ZnFe3+2(AsO4)2(OH)2 · 4H2O Mon. 2/m : _P_21/b
8.DC.15 Whitmoreite Fe2+Fe3+2(PO4)2(OH)2 · 4H2O Mon. 2/m : _P_21/b
8.DC.15 Bendadaite Fe2+Fe3+2(AsO4)2(OH)2 · 4H2O Mon. 2/m : _P_21/b
8.DC.17 Kleemanite ZnAl2(PO4)2(OH)2 · 3H2O Mon.
8.DC.20 Magnesiobermanite MgMn3+2(PO4)2(OH)2 · 4H2O Mon. 2 : _P_21
8.DC.20 Bermanite Mn2+Mn3+2(PO4)2(OH)2 · 4H2O Mon. 2/m : _P_2/b
8.DC.20 Coralloite Mn2+Mn3+2(AsO4)2(OH)2 · 4H2O Tric. 1 : _P_1
8.DC.22 Kovdorskite Mg2(PO4)(OH) · 3H2O Mon. 2/m : _P_21/b
8.DC.25 Zincostrunzite ZnFe3+2(PO4)2(OH)2 · 6.5H2O Tric. 1 : _P_1
8.DC.25 Metavauxite Fe2+Al2(PO4)2(OH)2 · 8H2O Mon. 2/m : _P_21/b
8.DC.25 Metavivianite Fe2+Fe3+2(PO4)2(OH)2 · 6H2O Tric. 1 : _P_1
8.DC.25 Strunzite Mn2+Fe3+2(PO4)2(OH)2 · 6H2O Tric. 1 : _P_1
8.DC.25 Ferrostrunzite Fe2+Fe3+2(PO4)2(OH)2 · 6H2O Tric.
8.DC.27 Beraunite Fe3+6(PO4)4O(OH)4 · 6H2O Mon. m : B b
8.DC.27 Tvrdýite Fe2+Fe3+2 Al3(PO4)4(OH)5(H2O)4 · 2H2O Mon. 2/m : _B_2/b
8.DC.27 Zincoberaunite ZnFe3+5(PO4)4(OH)5 · 6H2O Mon. 2/m : _B_2/b
8.DC.30 Maghrebite MgAl2(AsO4)2(OH)2 · 8H2O Tric. 1 : _P_1
8.DC.30 Ferrolaueite Fe2+Fe3+2(PO4)2(OH)2 · 8H2O Tric. 1 : _P_1
8.DC.30 Ushkovite MgFe3+2(PO4)2(OH)2 · 8H2O Tric. 1 : _P_1
8.DC.30 Laueite Mn2+Fe3+2(PO4)2(OH)2 · 8H2O Tric. 1 : _P_1
8.DC.30 Paravauxite Fe2+Al2(PO4)2(OH)2 · 8H2O Tric. 1 : _P_1
8.DC.30 Sigloite Fe3+Al2(PO4)2(OH)3 · 7H2O Tric. 1 : _P_1
8.DC.30 Nordgauite MnAl2(PO4)2(F,OH)2 · 5H2O Tric. 1 : _P_1
8.DC.30 Kayrobertsonite [MnAl2(PO4)2(OH)2(H2O)4] · 2H2O Tric. 1 : _P_1
8.DC.30 Kummerite Mn2+Fe3+Al(PO4)2(OH)2 · 8H2O Tric. 1 : _P_1
8.DC.30 Mangangordonite Mn2+Al2(PO4)2(OH)2 · 8H2O Tric. 1 : _P_1
8.DC.30 Stewartite Mn2+Fe3+2(PO4)2(OH)2 · 8H2O Tric. 1 : _P_1
8.DC.30 Gordonite MgAl2(PO4)2(OH)2 · 8H2O Tric. 1 : _P_1
8.DC.30 Kastningite (Mn2+,Fe2+,Mg)Al2(PO4)2(OH)2 · 8H2O Tric. 1 : _P_1
8.DC.30 Pseudolaueite Mn2+Fe3+2(PO4)2(OH)2 · 8H2O Mon. 2/m : _P_21/b
8.DC.32 Kamarizaite Fe3+3(AsO4)2(OH)3 · 3H2O Tric. 1 : _P_1
8.DC.32 Tinticite Fe3+3(PO4)2(OH)3 · 3H2O Tric. 1 : _P_1
8.DC.35 Vauxite Fe2+Al2(PO4)2(OH)2 · 6H2O Tric. 1 : _P_1
8.DC.37 Vantasselite Al4(PO4)3(OH)3 · 9H2O Orth.
8.DC.40 Cacoxenite Fe3+24AlO6(PO4)17(OH)12 · 75H2O Hex. 6/m : _P_63/m
8.DC.45 Souzalite (Mg,Fe2+)3(Al,Fe3+)4(PO4)4(OH)6 · 2H2O Tric. 1
8.DC.45 Gormanite (Fe2+,Mg)3(Al,Fe3+)4(PO4)4(OH)6 · 2H2O Tric.
8.DC.47 Kingite Al3(PO4)2F2(OH) · 7H2O Tric.
8.DC.50 Allanpringite Fe3+3(PO4)2(OH)3 · 5H2O Mon. 2/m : _P_21/m
8.DC.50 Fluorwavellite Al3(PO4)2(OH)2F · 5H2O Orth. m m m _(_2/_m_2/_m_2/m )
8.DC.50 Wavellite Al3(PO4)2(OH,F)3 · 5H2O Orth. m m m _(_2/_m_2/_m_2/m )
8.DC.52 Kribergite Al5(PO4)3(SO4)(OH)4 · 4H2O Tric. 1 : _P_1
8.DC.55 Mapimite Zn2Fe3+3(AsO4)3(OH)4 · 10H2O Mon. m : B m
8.DC.57 Ogdensburgite Ca2Fe3+4(Zn,Mn2+)(AsO4)4(OH)6 · 6H2O Orth. m m m _(_2/_m_2/_m_2/m ) : C m m m
8.DC.60 Cloncurryite Cu0.5(VO)0.5Al2(PO4)2F2 · 5H2O Mon. 2/m : _P_21/b
8.DC.60 Nevadaite (Cu2+,Al,V3+)6Al8(PO4)8F8(OH)2 · 22H2O Orth. m m m _(_2/_m_2/_m_2/m )
8.DC.62 Kenngottite Mn2+3Fe3+4(PO4)4(OH)6(H2O)2 Mon. 2/m : _P_2/b
8.DC.67 Molinelloite Cu(H2O)(OH)V4+O(V5+O4) Tric. 1 : _P_1
8.DC.70 Whitecapsite H16Fe2+5Fe3+14Sb3+6(AsO4)18O16 · 120H2O Hex. 6/m : _P_63/m
8.DC.75 Heimite PbCu2(AsO4)(OH)3 · 2H2O Mon. 2/m
8.DC.80 Lednevite Cu[PO3(OH)] · H2O Mon. 2/m : _P_21/b

Fluorescence of FerristrunziteHide

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Other InformationHide

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Health Risks:

No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

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References for FerristrunziteHide

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Reference List:

Peacor, D.R., Dunn, P.J., Simmons, W.B., Ramik, R.A. (1987) Ferristrunzite, a new member of the strunzite group, from Blaton, Belgium. Neues Jahrbuch für Mineralogie, Monatshefte 1987, Heft 10, 453-457.

Frost, R.L., Martens, W.N., Kloprogge, T., Williams, P.A. (2002) Vibrational spectroscopy of the basic manganese and ferric phosphate minerals: strunzite, ferrostrunzite and ferristrunzite. Neues Jahrbuch für Mineralogie, Monatshefte, 2002, 481-496.

Localities for FerristrunziteHide

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This 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.

Locality ListHide

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- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.

Belgium (TL)
Wallonia Hainaut Bernissart Blaton ⓘ Mont-des-Groseillers (TL) Van Tassel (1966) +8 other references
Namur Anhée ⓘ Haut-le-Wastia Dillen et al. (1990) +2 other references
Brazil
Minas Gerais Conselheiro Pena Barra do Cuieté ⓘ Cigana claim Baijot et al. (2014)
Czech Republic
Karlovy Vary Region Cheb District Aš ⓘ Vernéřov Breiter K.
France
Occitanie Tarn Castres Fontrieu Fumade ⓘ Phosphate occurrence Favreau et al. (2013)
Germany
Bavaria Upper Palatinate Neustadt an der Waldnaab District Waidhaus ⓘ Silbergrube Wittern (2001) +1 other reference
North Rhine-Westphalia Arnsberg Hochsauerlandkreis Arnsberg ⓘ Uentrop - (n.d.)
Märkischer Kreis Iserlohn Letmathe Helmke quarry nature reserve ⓘ Genna zinc smelter slag locality Blaß et al. (1994) +1 other reference
Düsseldorf Wuppertal Aprath castle ⓘ B224 Road cut Emser Hefte 1988 (4)
Saxony Görlitz District Neißeaue ⓘ Emmerichswalde Witzke et al. (2013)
Thuringia Nordhausen District Harztor Herrmannsacker Lange Tal Neustadt dam ⓘ Unnamed quarry Gröbner et al. (2011)
Poland
Lower Silesian Voivodeship Wrocław County Gmina Kobierzyce ⓘ Pustków Wilczkowski ? Ł. Kruszewski PXRD & pXRF data (paper in preparation)
Portugal
Guarda Gouveia Folgosinho ⓘ Sítio do Castelo Mine Alves (2016)
USA
Wisconsin Rusk County Ladysmith-Rhinelander Metavolcanic Complex Ladysmith ⓘ Flambeau Mine wgnhs.uwex.edu (n.d.)
Mars
Aeolis quadrangle Gusev Crater Columbia Hills Husband Hill Cumberland Ridge ⓘ Paso Robles site ? Lane et al. (2008)