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Xanthoxenite

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Formula:
Ca4Fe23+(PO4)4(OH)2 · 3H2O
System:
Triclinic
Colour:
Pale yellow, ...
Lustre:
Waxy, Dull
Hardness:
Name:
From Greek "xanthos", yellow, plus "oxenite", alluding to its resemblance to cacoxenite.
Whiteite Group.

A secondary mineral resulting from the alteration of triphylite in complex, zoned, granitic pegmatites.

Classification of Xanthoxenite

Approved
8.DH.40

8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
H : With large and medium-sized cations, (OH, etc.):RO4 < 1:1
42.11.15.1

42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
11 : (AB)3(XO4)2Zq·xH2O
19.14.15

19 : Phosphates
14 : Phosphates of Fe and other metals
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First Recorded Occurrence of Xanthoxenite

Year of Discovery:
1949

Physical Properties of Xanthoxenite

Waxy, Dull
Diaphaneity (Transparency):
Translucent
Colour:
Pale yellow, brownish-yellow; pale yellow to pale lemon-yellow in transmitted light.
Hardness (Mohs):
Cleavage:
Perfect
On {010}, perfect.
Density:
2.97 g/cm3 (Measured)    3.38 g/cm3 (Calculated)

Crystallography of Xanthoxenite

Crystal System:
Triclinic
Class (H-M):
1 - Pinacoidal
Space Group:
P1
Cell Parameters:
a = 6.7Å, b = 8.85Å, c = 6.54Å
α = 92.1°, β = 110.1°, γ = 93.2°
Ratio:
a:b:c = 0.757 : 1 : 0.739
Z:
1
Comment:
Point group may be 1.
X-Ray Powder Diffraction:
Image Loading

Radiation - Copper Kα
Data Set:
Data courtesy of RRUFF project at University of Arizona, used with permission.
X-Ray Powder Diffraction Data:
d-spacingIntensity
6.24 (5)
4.94 (4)
3.48 (7)
3.22 (8)
3.05 (10)
2.73 (9)
2.23 (6)

Optical Data of Xanthoxenite

Type:
Biaxial (-)
RI values:
nα = 1.704 nβ = 1.715 nγ = 1.724
2V:
Measured: 80° to 90°, Calculated: 82°
Max Birefringence:
δ = 0.020
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
High
Dispersion:
r > v weak
Pleochroism:
Weak
Comments:
In thick grains in shades of yellow.

Chemical Properties of Xanthoxenite

Formula:
Ca4Fe23+(PO4)4(OH)2 · 3H2O
Essential elements:
All elements listed in formula:

Relationship of Xanthoxenite to other Species

8.DH.05MinyuliteKAl2(PO4)2(OH,F) · 4H2O
8.DH.10LeucophosphiteKFe23+(PO4)2(OH) · 2H2O
8.DH.10Spheniscidite(NH4,K)(Fe3+,Al)2(PO4)2(OH) · 2H2O
8.DH.10TinsleyiteKAl2(PO4)2(OH) · 2H2O
8.DH.15Jahnsite-(CaMnFe){Ca}{Mn2+}{Fe22+}{Fe23+}(PO4)4(OH)2 · 8H2O
8.DH.15Jahnsite-(CaMnMg){Ca}{Mn2+}{(Mg,Fe2+)2}{Fe23+}(PO4)4(OH)2 · 8H2O
8.DH.15Jahnsite-(CaMnMn){Ca}{Mn2+}{Mn22+}{Fe23+}(PO4)4(OH)2 · 8H2O
8.DH.15KeckiteCaMn2+Fe23+Fe23+(PO4)4(OH)3(H2O)7
8.DH.15Rittmannite{(Mn2+,Ca)}{Mn2+}{(Fe2+,Mn2+,Mg)2}{(Al,Fe3+)2}(PO4)4(OH)2 · 8H2O
8.DH.15Whiteite-(CaFeMg){Ca}{(Fe2+,Mn2+)}{Mg2}{Al2}(PO4)4(OH)2 · 8H2O
8.DH.15Whiteite-(CaMnMg){Ca}{Mn2+}{Mg2}{Al2}(PO4)4(OH)2 · 8H2O
8.DH.15Whiteite-(MnFeMg){(Mn2+,Ca)}{(Fe2+,Mn2+)}{Mg2}{Al2}(PO4)4(OH)2 · 8H2O
8.DH.15Jahnsite-(MnMnMn){Mn2+}{Mn2+}{Mn22+}{Fe23+}(PO4)4(OH)2 · 8H2O
8.DH.15Kaluginite(Mn2+,Ca)MgFe3+(PO4)2(OH) · 4H2O
8.DH.15Jahnsite-(CaFeFe){Ca}{Fe2+}{Fe22+}{Fe23+}(PO4)4(OH)2 · 8H2O
8.DH.15Jahnsite-(NaFeMg)NaFe3+Mg2Fe23+(PO4)4(OH)2 · 8H2O
8.DH.15Jahnsite-(NaMnMg){Na}{Mn3+}{Mg2}{Fe23+}(PO4)4(OH)2 · 8H2O
8.DH.15Jahnsite-(CaMgMg){Ca}{Mg}{Mg2}{Fe23+}(PO4)4(OH)2 · 8H2O
8.DH.20Manganosegelerite(Mn2+,Ca)(Mn2+,Fe2+,Mg)Fe3+(PO4)2(OH) · 4H2O
8.DH.20OveriteCaMgAl(PO4)2(OH) · 4H2O
8.DH.20SegeleriteCa2 Mg2 Fe23+(PO4)4(OH)2 · 8H2O
8.DH.20WilhelmvierlingiteCaMnFe3+(PO4)2(OH) · 2H2O
8.DH.20JuonniiteCaMgSc(PO4)2(OH) · 4H2O
8.DH.25CalcioferriteCa2Fe23+(PO4)3(OH) · 7H2O
8.DH.25KingsmountiteCa4(Fe2+,Mn2+)Al4(PO4)6(OH)4 · 12H2O
8.DH.25MontgomeryiteCa4MgAl4(PO4)6(OH)4 · 12H2O
8.DH.25ZodaciteCa4Mn2+Fe43+(PO4)6(OH)4 · 12H2O
8.DH.30ArseniosideriteCa2Fe33+(AsO4)3O2 · 3H2O
8.DH.30KolfaniteCa2Fe33+O2(AsO4)3 · 2H2O
8.DH.30MitridatiteCa2Fe33+(PO4)3O2 · 3H2O
8.DH.30PararobertsiteCa2Mn33+(PO4)3O2 · 3H2O
8.DH.30RobertsiteCa3Mn43+(PO4)3O2 · 3H2O
8.DH.30Sailaufite(Ca,Na,☐)2Mn33+(AsO4)2(CO3)O2 · 3H2O
8.DH.35MantienneiteKMg2Al2Ti(PO4)4(OH)3 · 15H2O
8.DH.35PaulkerriteK(Mg,Mn2+)2(Fe3+,Al,Ti,Mg)2Ti(PO4)4(OH)3 · 15H2O
8.DH.35Benyacarite(H2O,K)2(Mn2+,Fe2+)2(Fe3+,Ti)2Ti(PO4)4(O,F)2 · 14H2O
8.DH.45MahnertiteNaCu3(AsO4)2Cl · 5H2O
8.DH.50AndyrobertsiteKCdCu5(AsO4)4(H2AsO4) · 2H2O
8.DH.50CalcioandyrobertsiteKCaCu5(AsO4)4(H2AsO4) · 2H2O
8.DH.55EnglishiteK3Na2Ca10Al15(PO4)21(OH)7 · 26H2O
8.DH.60BouazzeriteBi6(Mg,Co)11Fe143+(AsO4)18(OH)4O12 · 86H2O
19.14.1CyriloviteNaFe33+(PO4)2(OH)4 · 2H2O
19.14.2KidwelliteNaFe93+(PO4)6(OH)11 · 3H2O
19.14.3Rosemaryite(Na,Ca,Mn)(Mn,Fe2+)(Fe3+,Mg)Al(PO4)3
19.14.4Wyllieite(Na,Ca,Mn)(Mn,Fe)(Fe,Mg)Al(PO4)3
19.14.5Ferrowyllieite(Na,Ca,Mn)(Fe,Mn)(Fe,Fe,Mg)Al(PO4)3
19.14.6NatrodufréniteNaFe2+Fe53+(PO4)4(OH)6 · 2H2O
19.14.7LeucophosphiteKFe23+(PO4)2(OH) · 2H2O
19.14.8Spheniscidite(NH4,K)(Fe3+,Al)2(PO4)2(OH) · 2H2O
19.14.9BurangaiteNaFe2+Al5(PO4)4(OH)6 · 2H2O
19.14.10Satterlyite(Fe2+,Mg,Fe3+)2(PO4)(OH,O)
19.14.11UshkoviteMgFe23+(PO4)2(OH)2 · 8H2O
19.14.12Garyansellite(Mg,Fe)3(PO4)2(OH,O) · 1.5H2O
19.14.13ThadeuiteCa(Mg,Fe2+)3(PO4)2(OH,F)2
19.14.14AnapaiteCa2Fe2+(PO4)2 · 4H2O
19.14.16CalcioferriteCa2Fe23+(PO4)3(OH) · 7H2O
19.14.17MitridatiteCa2Fe33+(PO4)3O2 · 3H2O
19.14.18MélonjosephiteCaFe2+Fe3+(PO4)2(OH)
19.14.19DelvauxiteCaFe4(PO4,SO4)2(OH)8 · 4-6H2O not confirmed ·
19.14.20CollinsiteCa2(Mg,Fe2+)(PO4)2 · 2H2O
19.14.21SegeleriteCa2 Mg2 Fe23+(PO4)4(OH)2 · 8H2O
19.14.22KingsmountiteCa4(Fe2+,Mn2+)Al4(PO4)6(OH)4 · 12H2O
19.14.23VauxiteFe2+Al2(PO4)2(OH)2 · 6H2O
19.14.24MetavauxiteFe2+Al2(PO4)2(OH)2 · 8H2O
19.14.25ParavauxiteFe2+Al2(PO4)2(OH)2 · 8H2O
19.14.26SigloiteFe3+Al2(PO4)2(OH)3 · 7H2O
19.14.27CacoxeniteFe243+Al(PO4)17O6(OH)12 · 17H2O
19.14.28KoninckiteFe3+PO4 · 3H2O
19.14.29Lazulite(Mg,Fe2+)Al2(PO4)2(OH)2
19.14.30ScorzaliteFe2+Al2(PO4)2(OH)2
19.14.31Souzalite(Mg,Fe2+)3(Al,Fe3+)4(PO4)4(OH)6 · 2H2O
19.14.32Gormanite(Fe2+,Mg)3(Al,Fe3+)4(PO4)4(OH)6 · 2H2O
19.14.33ZaïriteBiFe33+(PO4)2(OH)6

Other Names for Xanthoxenite

Name in Other Languages:

Other Information

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 Xanthoxenite

Reference List:
Laubmann, H. and Steinmetz, H. (1920): Phosphatführende Pegmatite des Oberpfälzer und Bayerischen Waldes. Zeitschrift für Kristallographie, Mineralogie und Petrographie, 55: 523-583 (p. 579). (may have described material that equated to stewartite, type material destroyed).

Mineralogical Magazine, (1949): 34, 692.

Frondel, C. (1949) Wolfeite, xanthoxenite, and whitlockite from the Palermo mine, New Hampshire. American Mineralogist: 34: 692–705.

Staněk, J. (1970): Kakoxen und Xanthoxen von Dolní Bory. Acta Musei Moraviae, Sci. nat., 55, 5-12. (in German)

Moore, P.B. & Ito, J. (1978): I. Whiteite, a new species, and a proposed nomenclature for the jahnsite-whiteite complex series. II. New data on xanthoxenite. III. Salmonsite discredited. Mineralogical Magazine: 42: 309-323.

American Mineralogist (1979): 466.

Internet Links for Xanthoxenite

Localities for Xanthoxenite

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.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? 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.
Australia
 
  • South Australia
    • Mt Lofty Ranges
      • North Mt Lofty Ranges
        • Kapunda
V. Peisley & P. Elliott in prep
    • Olary Province
      • Boolcoomatta Reserve (Boolcoomata Station; Boolcoomatta)
Brazil
 
  • Minas Gerais
    • Doce valley
      • Galiléia
        • Sapucaia do Norte
Baijot, M., Hatert, F. & Philippo, S. (2012): Mineralogy and geochemistry of phosphates and silicates in the Sapucaia pegmatite, Minas Gerais, Brazil: Genetic implications. Canadian Mineralogist. 50, 1531-1554
[MinRec 19:335]
Czech Republic
 
  • Bohemia (Böhmen; Boehmen)
    • Central Bohemia Region
      • Kutná Hora (Kuttenberg)
Povondra, P., Pivec, E. (eds.) et al.: Přibyslavice peraluminuous granite. Acta universitatis carolinae, Geologica, 1987, no. 3, s . 183 – 283.
France
 
  • Languedoc-Roussillon
    • Pyrénées-Orientales
Berbain,C., Riley, T., Favreau, G., (2012): Phosphates des pegmatites du massif des Albères (Pyrénées-Orientales). Le Cahier des Micromonteurs. 117, 121-172
        • Collioure (Cotlliure)
BERBAIN. C, RILEY. T, FAVREAU. G, (2012) Phosphates des pegmatites du massif des Albères. Ed Association Française de Microminéralogie
Germany
 
  • Bavaria
    • Lower Bavaria
      • Zwiesel
        • Rabenstein
Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 977.
    • Upper Palatinate
      • Pleystein
Dill, H.G., Weber, B. (2009), Pleystein-City on Pegmatite, 4th International Symposium on Granitic Pegmatites, Recife, Brazil.
      • Waidhaus
        • Hagendorf
Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
http://www.berthold-weber.de/h_miner.htm
Italy
 
  • Lombardy
    • Lecco Province
      • Colico
Gramaccioli C.M. (1975) - Minerali alpini e prealpini. Vpl. I, pagg. 214-215. Ist. Ital. Ed. Atlas, Bergamo
Portugal
 
  • Viseu District
    • Sátão
      • Ferreira de Aves
        • Aldeia Nova
Spain
 
  • Castile and Leon
    • Zamora
      • Villar del Buey
        • Pinilla de Fermoselle
UK
 
  • Wales
    • Denbighshire (Clwyd)
      • Glyn Ceiriog
[MinRec 20:395]
USA
 
  • Connecticut
    • Fairfield Co.
      • Redding (Reading)
        • Branchville
Januzzi, 1976. Mineral Localities of CT and Southeastern NY State, p.275; Januzzi (1994) Mineral Data Book
    • Middlesex Co.
      • East Hampton (Chatham)
Schooner, R. (1958). The Mineralogy of the Portland- East Hampton-Middletown-Haddam Area in Connecticut (East Hampton CT: priv. pub.) p. 32
        • Cobalt
Schooner (1958)
  • Maine
    • Oxford Co.
      • Newry
King, V. and Foord, E., 1994, Mineralogy of Maine, V. 1; King, V. (ed.), 2000, Mineralogy of Maine, V. 2, with updates by Van King
King, V. and Foord, E., 1994, Mineralogy of Maine, V. 1; King, V. (ed), 2000, Mineralogy of Maine, V. 2.
Van King
      • Paris
SEM-EDS
      • Peru
No reference listed
      • Rumford
Tim Blake and Scott Soucey specimens
  • New Hampshire
    • Cheshire Co.
      • Alstead
Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
    • Grafton Co.
      • Groton
Rocks & Minerals: 80: 252.
American Mineralogist (1949): 34: 692-705; Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 686, 977; American Mineralogist (1979): 64: 466.; Am. Min. 50 (1965), 713-717
  • North Carolina
    • Cleveland Co.
      • Kings Mountain District
Mineral Collecting Sites in North Carolina-W.F.Wilson and B.J. McKenzie-1980; Carolina Geological Society Field Trip Guidebook 1981, 39-48
  • South Dakota
    • Custer Co.
      • Custer District
        • Custer
Seaman, 1976. Pegmatite Minerals of the World
        • Fourmile
Mineralogical Record: 17: 237-254; Rocks & Minerals: 60: 117.
        • Pringle
          • Cicero Peak
Rocks & Minerals: 75(3): 156-169.
    • Pennington Co.
      • Keystone District
R&M 75:3 pp 156-169
        • Keystone
Rocks & Minerals: 67(6): 380-388.
Mineral and/or Locality  
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