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Ferristrunzite

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About FerristrunziteHide

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
Hardness:
4
Specific Gravity:
2.38 - 2.50
Crystal System:
Triclinic
Member of:
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.
Polymorph of:
Isostructural with:
This page provides mineralogical data about Ferristrunzite.


Classification of FerristrunziteHide

Approved
Approval Year:
1986
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

Pronounciation of FerristrunziteHide

Pronounciation:
PlayRecorded byCountry
Jolyon & Katya RalphUnited Kingdom

Physical Properties of FerristrunziteHide

Sub-Vitreous, Resinous, Waxy, Silky, Dull
Transparency:
Transparent, Translucent
Colour:
Pale yellow to creamy white, tan to very light brown
Streak:
White
Hardness:
Tenacity:
Brittle
Cleavage:
None Observed
Fracture:
Splintery
Density:
2.38 - 2.50 g/cm3 (Measured)    2.55 g/cm3 (Calculated)

Optical Data of FerristrunziteHide

Type:
Biaxial (+)
RI values:
nα = 1.664 nβ = 1.698 nγ = 1.757
2V:
Measured: 77° , Calculated: 78°
Birefringence:
0.093
Max Birefringence:
δ = 0.093
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
High
Dispersion:
strong
Optical Extinction:
Z^c ~ 17°
Pleochroism:
Visible
Comments:
X = greenish-yellow, Z = brownish yellow

Chemical Properties of FerristrunziteHide

Formula:
Fe3+Fe3+2(PO4)2(OH)3 · 5H2O

Chemical AnalysisHide

Oxide wt%:
 1
Fe20346.3 %
P20528.2 %
H2026.0 %
Total:100.5 %
Sample references:
IDLocalityReference
1Mont-des-Groseillers, Blaton, Bernissart, Hainaut, Wallonia, BelgiumPeacor, 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

Crystal System:
Triclinic
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)
Z:
2

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
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

Geological Setting:
Granite pegmatites, sedimentary phosphate nodules.

Type Occurrence of FerristrunziteHide

General Appearance of Type Material:
Tan radiating acicular crystals
Place of Conservation of Type Material:
Smithsonian Institution, catalogue number 162499
Geological Setting of Type Material:
Fracture filling in a sedimentary rock
Associated Minerals at Type Locality:

Synonyms of FerristrunziteHide

Other Language Names for FerristrunziteHide

Relationship of Ferristrunzite to other SpeciesHide

Member of:
Other Members of this group:
FerrostrunziteFe2+Fe3+2(PO4)2(OH)2 · 6H2OTric.
StrunziteMn2+Fe3+2(PO4)2(OH)2 · 6H2OTric. 1 : P1
ZincostrunziteZnFe3+2(PO4)2(OH)2·6.5H2OTric. 1 : P1

Common AssociatesHide

BerauniteFe2+Fe3+5(PO4)4(OH)5 · 6H2O
CacoxeniteFe3+24AlO6(PO4)17(OH)12 · 75H2O
CacoxeniteFe3+24AlO6(PO4)17(OH)12 · 75H2O
StrengiteFePO4 · 2H2O
Associated Minerals Based on Photo Data:
18 photos of Ferristrunzite associated with CacoxeniteFe3+24AlO6(PO4)17(OH)12 · 75H2O
13 photos of Ferristrunzite associated with StrengiteFePO4 · 2H2O
11 photos of Ferristrunzite associated with BerauniteFe2+Fe3+5(PO4)4(OH)5 · 6H2O
8 photos of Ferristrunzite associated with WhitmoreiteFe2+Fe3+2(PO4)2(OH)2 · 4H2O
4 photos of Ferristrunzite associated with RockbridgeiteFe2+Fe3+4(PO4)3(OH)5
3 photos of Ferristrunzite associated with PhosphosideriteFePO4 · 2H2O
3 photos of Ferristrunzite associated with MitridatiteCa2Fe3+3(PO4)3O2 · 3H2O

Related Minerals - Nickel-Strunz GroupingHide

8.DC.05NissoniteCu2Mg2(PO4)2(OH)2 · 5H2OMon.
8.DC.07EuchroiteCu2(AsO4)(OH) · 3H2OOrth. 2 2 2 : P21 21 21
8.DC.10LegranditeZn2(AsO4)(OH) · H2OMon. 2/m : P21/b
8.DC.12StrashimiriteCu8(AsO4)4(OH)4 · 5H2OMon.
8.DC.15ArthuriteCuFe3+2(AsO4)2(OH)2 · 4H2OMon.
8.DC.15EarlshannoniteMn2+Fe3+2(PO4)2(OH)2 · 4H2OMon.
8.DC.15OjuelaiteZnFe3+2(AsO4)2(OH)2 · 4H2OMon.
8.DC.15WhitmoreiteFe2+Fe3+2(PO4)2(OH)2 · 4H2OMon. 2/m : P21/b
8.DC.15Cobaltarthurite(Co,Mg)Fe3+2(AsO4)2(OH)2 · 4H2OMon. 2/m : P21/b
8.DC.15BendadaiteFe2+Fe3+2(AsO4)2(OH)2 · 4H2OMon. 2/m : P21/b
8.DC.15KunatiteCuFe3+2(PO4)2(OH)2 · 4H2OMon. 2/m : P21/b
8.DC.15UKI-2006-(PO:FeHZn)ZnFe3+2(PO4)2(OH)2 · 4H2OMon.
8.DC.15UKI-2006-(PO:AlCuFeH)Fe2+Al3+2(PO4)2(OH)2 · 4H2O
8.DC.17KleemaniteZnAl2(PO4)2(OH)2 · 3H2OMon.
8.DC.20BermaniteMn2+Mn3+2(PO4)2(OH)2 · 4H2OMon. 2/m : P2/b
8.DC.20CoralloiteMn2+Mn3+2(AsO4)2(OH)2 · 4H2OTric. 1 : P1
8.DC.22KovdorskiteMg2(PO4)(OH) · 3H2OMon.
8.DC.25FerrostrunziteFe2+Fe3+2(PO4)2(OH)2 · 6H2OTric.
8.DC.25MetavauxiteFe2+Al2(PO4)2(OH)2 · 8H2OMon. 2/m : P21/b
8.DC.25MetavivianiteFe2+Fe3+2(PO4)2(OH)2 · 6H2OTric. 1 : P1
8.DC.25StrunziteMn2+Fe3+2(PO4)2(OH)2 · 6H2OTric. 1 : P1
8.DC.27BerauniteFe2+Fe3+5(PO4)4(OH)5 · 6H2OMon. 2/m : B2/b
8.DC.30GordoniteMgAl2(PO4)2(OH)2 · 8H2OTric. 1 : P1
8.DC.30LaueiteMn2+Fe3+2(PO4)2(OH)2 · 8H2OTric. 1 : P1
8.DC.30MangangordoniteMn2+Al2(PO4)2(OH)2 · 8H2OTric.
8.DC.30ParavauxiteFe2+Al2(PO4)2(OH)2 · 8H2OTric. 1 : P1
8.DC.30PseudolaueiteMn2+Fe3+2(PO4)2(OH)2 · 8H2OMon. 2/m : P21/b
8.DC.30SigloiteFe3+Al2(PO4)2(OH)3 · 7H2OTric.
8.DC.30StewartiteMn2+Fe3+2(PO4)2(OH)2 · 8H2OTric. 1 : P1
8.DC.30UshkoviteMgFe3+2(PO4)2(OH)2 · 8H2OTric.
8.DC.30FerrolaueiteFe2+Fe3+2(PO4)2(OH)2 · 8H2OTric. 1 : P1
8.DC.30Kastningite(Mn2+,Fe2+,Mg)Al2(PO4)2(OH)2 · 8H2OTric. 1 : P1
8.DC.30MaghrebiteMgAl2(AsO4)2(OH)2 · 8H2OTric. 1 : P1
8.DC.30NordgauiteMnAl2(PO4)2(F,OH)2 · 5H2OTric. 1 : P1
8.DC.32TinticiteFe3+5.34(PO4)3.62(VO4)0.38(OH)4 · 6.7H2OTric. 1 : P1
8.DC.35VauxiteFe2+Al2(PO4)2(OH)2 · 6H2OTric. 1 : P1
8.DC.37VantasseliteAl4(PO4)3(OH)3 · 9H2OOrth.
8.DC.40CacoxeniteFe3+24AlO6(PO4)17(OH)12 · 75H2OHex. 6/m : P63/m
8.DC.45Gormanite(Fe2+,Mg)3(Al,Fe3+)4(PO4)4(OH)6 · 2H2OTric.
8.DC.45Souzalite(Mg,Fe2+)3(Al,Fe3+)4(PO4)4(OH)6 · 2H2OTric.
8.DC.47KingiteAl3(PO4)2F2(OH) · 7H2OTric.
8.DC.50WavelliteAl3(PO4)2(OH,F)3 · 5H2OOrth. mmm (2/m 2/m 2/m)
8.DC.50AllanpringiteFe3+3(PO4)2(OH)3 · 5H2OMon. 2/m : P21/m
8.DC.52KribergiteAl5(PO4)3(SO4)(OH)4 · 4H2OTric. 1 : P1
8.DC.55MapimiteZn2Fe3+3(AsO4)3(OH)4 · 10H2OMon.
8.DC.57OgdensburgiteCa2Fe3+4(Zn,Mn2+)(AsO4)4(OH)6 · 6H2OOrth. mmm (2/m 2/m 2/m) : Cmmm
8.DC.60Nevadaite(Cu2+,Al,V3+)6Al8(PO4)8F8(OH)2 · 22H2OOrth. mmm (2/m 2/m 2/m)
8.DC.60CloncurryiteCu0.5(VO)0.5Al2(PO4)2F2 · 5H2OMon. 2/m : P21/b

Related Minerals - Dana Grouping (8th Ed.)Hide

42.11.9.1StrunziteMn2+Fe3+2(PO4)2(OH)2 · 6H2OTric. 1 : P1
42.11.9.2FerrostrunziteFe2+Fe3+2(PO4)2(OH)2 · 6H2OTric.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

19.13.1BarbosaliteFe2+Fe3+2(PO4)2(OH)2Mon. 2/m : P21/b
19.13.2StrengiteFePO4 · 2H2OOrth. mmm (2/m 2/m 2/m) : Pbca
19.13.3PhosphosideriteFePO4 · 2H2OMon. 2/m
19.13.4DufréniteCa0.5Fe2+Fe3+5(PO4)4(OH)6 · 2H2OMon. 2/m : B2/b
19.13.5GiniiteFe2+Fe3+4(PO4)3(OH)5 · 2H2OMon. 2/m : P2/b
19.13.6WhitmoreiteFe2+Fe3+2(PO4)2(OH)2 · 4H2OMon. 2/m : P21/b
19.13.7TinticiteFe3+5.34(PO4)3.62(VO4)0.38(OH)4 · 6.7H2OTric. 1 : P1
19.13.9FerrostrunziteFe2+Fe3+2(PO4)2(OH)2 · 6H2OTric.
19.13.10BerauniteFe2+Fe3+5(PO4)4(OH)5 · 6H2OMon. 2/m : B2/b
19.13.11VivianiteFe2+3(PO4)2 · 8H2OMon. 2/m : B2/m
19.13.12MetavivianiteFe2+Fe3+2(PO4)2(OH)2 · 6H2OTric. 1 : P1

Fluorescence of FerristrunziteHide

Not fluorescent in UV

Other InformationHide

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 FerristrunziteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
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.
Jambor, J.L., Puziewicz, J. (1989) New mineral names. American Mineralogist, 74, 500-505.
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.
Frost, R.L., Weier, M., Lyon, W.G. (2004) Metavivianite an intermediate mineral phase between vivianite, and ferro/ferristrunzite - a Raman spectroscopic study. Neues Jahrbuch für Mineralogie, Monatshefte 2004, 228-240.

Internet Links for FerristrunziteHide

Localities for FerristrunziteHide

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

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Belgium (TL)
 
  • Wallonia
    • Hainaut
      • Bernissart
        • Blaton
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.; Schnorrer-Köhler, G. (1988) Mineralogische Notizen IV. Der Aufschluss, 39, 153-168.; Hatert, F., Deliens, M., Fransolet, A.-M., Van Der Meersche, E. (2002) Les minéraux de Belgique. 2ème édition, Muséum des Sciences Naturelles, Bruxelles, Belgium, 304 pages (in French).; http://www.cmpb.net/en/blaton.php http://users.skynet.be/rik.dillen/festr.htm https://www.strahlen.org/vp/be/blaton/blaton.php http://perso.infonie.be/jose.dehove/photos/Blaton.htm http://users.telenet.be/kbsmineral/Regional/Blaton/ferristrunziet.htm
    • Namur
      • Anhée
Dillen, H., Van Goethem, L. (1990) Ferristrunzite. Bulletin van de Belgische Vereniging voor Geologie, 99(3-4), 399.; http://users.skynet.be/rik.dillen/festr.htm
Brazil
 
  • Minas Gerais
    • Conselheiro Pena
Baijot, M., Hatert, F., Dal Rio, F. & Philipo, S. (2014) Mineralogy and petrography of phosphate mineral association from the Jocão pegmatite, Minas Gerais, Brazil. Canadian Mineralogist 52, 373-397.
Czech Republic
 
  • Karlovy Vary Region
    • Cheb District
Breiter K., Škoda R., Veselovský F.: Neobvyklý P-, Li- a Sn-bohatý pegmatit z Vernéřova u Aše, Česká republika. Bulletin Mineralogicko-petrografického oddělení Národního muzea v Praze, 2009, roč. 17, č. 1, s. 41-59.
France
 
  • Occitanie
    • Tarn
      • Castelnau-de-Brassac
        • Fumade
Favreau, G., Bernadi, G. & Gayraud, L. (2013): Fumade (Tarn): descriptions complémentaires des espèces minérales. Le Cahier des Micromonteurs, 119, 3-25.
Germany
 
  • Bavaria
    • Upper Palatinate
      • Neustadt an der Waldnaab
        • Waidhaus
Wittern: "Mineralfundorte in Deutschland", 2001; Dill, H. G., Weber, B., Gerdes, A., & Melcher, F. (2008). The Fe-Mn phosphate apliteSilbergrube'near Waidhaus, Germany: epithermal phosphate mineralization in the Hagendorf-Pleystein pegmatite province. Mineralogical Magazine, 72(5), 1119-1144.
  • North Rhine-Westphalia
    • Arnsberg
      • Märkischer Kreis
        • Iserlohn
          • Letmathe
Blaß, G. & Graf, H.W. (1994) Neue Funde. Mineralien-Welt, 2/94, 46-47.; Bender, D. and Krimmelbein, W. (1994) Aktuelle Übersicht: Mineralien der Zinkhütte Genna/Sauerland. Stand Juni 1994. Mineralien-Welt, 4/94, 10.
Handbook of Mineralogy http://www.handbookofmineralogy.org/pdfs/ferristrunzite.pdf (locality spelled "Ventorp")
    • Düsseldorf
      • Wuppertal
        • Aprath castle
Emser Hefte 1988(4), 35-40
  • Saxony
    • Görlitz District
      • Neißeaue
Witzke, T. & Giesler, T. (2013): Seltene Phosphate und Vanadate von Emmerichswalde bei Görlitz/Sachsen. Mineralien-Welt 24 (2), 40-55
  • Thuringia
    • Nordhausen
      • Harztor
        • Lange Tal
          • Neustadt dam
Gröbner, J., Hajek, W., Junker, R. & Nikoleizig, J. (2011): Neue Mineralschätze des Harzes. Papierflieger Verlag GmbH, Clausthal-Zellerfeld, Germany, 127 pp.
Portugal
 
  • Guarda
    • Gouveia
      • Folgosinho
Alves, P (2016). Folgosinho: Fosfatos secundarios de la mina Sitio do Castelo. Revista de Minerales 2015/2, 6-27. (in Spanish).
USA
 
  • Wisconsin
    • Rusk Co.
      • Ladysmith-Rhinelander Metavolcanic Complex
        • Ladysmith
http://wgnhs.uwex.edu/minerals/ferristrunzite/
Mars
 
  • Aeolis quadrangle
    • Gusev Crater
      • Columbia Hills
        • Husband Hill
          • Cumberland Ridge
Lane, M.D., Bishop, J.L., Dyar, M.D., King, P.L., Parene, M., Hyde, B.C. (2008) Mineralogy of the Paso Robles soils on Mars. American Mineralogist, 93 (5-6), 728-739.
 
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