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Mélonjosephite

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About MélonjosephiteHide

09070280014947019406641.jpg
Joseph Mélon
Formula:
CaFe2+Fe3+(PO4)2(OH)
Colour:
Dark green, nearly black.
Lustre:
Vitreous, Resinous
Hardness:
5
Specific Gravity:
3.65
Crystal System:
Orthorhombic
Name:
Named in honour of Joseph Mélon (born in Ieper, Belgium, on January 19, 1898, passed away in Liège, Belgium, on March 8, 1991), scientific collaborator and later professor in mineralogy at the university of Liège, Belgium.
Structurally related to kapundaite.


Classification of MélonjosephiteHide

Approved
8.BG.10

8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
G : With medium-sized and large cations, (OH, etc.):RO4 = 0.5:1
41.10.5.1

41 : ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
10 : (AB)3(XO4)2Zq
19.14.18

19 : Phosphates
14 : Phosphates of Fe and other metals

Physical Properties of MélonjosephiteHide

Vitreous, Resinous
Transparency:
Transparent
Colour:
Dark green, nearly black.
Streak:
Greenish
Hardness:
Tenacity:
Brittle
Cleavage:
Distinct/Good
One, longitudinal; another, transverse
Density:
3.65(2) g/cm3 (Measured)     3.61 g/cm3 (Calculated)

Optical Data of MélonjosephiteHide

Type:
Biaxial (-)
RI values:
nα = 1.720 nβ = 1.770 nγ = 1.800
2V:
Measured: 80° to 85°, Calculated: 72°
Max Birefringence:
δ = 0.080
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Very High
Dispersion:
r < v moderate
Comments:
X = deep brown with greenish tint, dark blue-green;
Y = greenish brown, dark olive-brown;
Z = golden yellow with greenish tint, pale brown

Chemical Properties of MélonjosephiteHide

Formula:
CaFe2+Fe3+(PO4)2(OH)

Crystallography of MélonjosephiteHide

Crystal System:
Orthorhombic
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:
Pbam
Setting:
Pbam
Cell Parameters:
a = 9.542(1) Å, b = 10.834(1) Å, c = 6.374(1) Å
Ratio:
a:b:c = 0.881 : 1 : 0.588
Unit Cell V:
658.93 ų (Calculated from Unit Cell)
Z:
4

Geological EnvironmentHide

Paragenetic Mode(s):

Type Occurrence of MélonjosephiteHide

General Appearance of Type Material:
Crystals tabular, showing {001}, {010}, and {100}; in fibrous masses, with fibers to 1 cm
Place of Conservation of Type Material:
Laboratory of Mineralogy, University of Liège
Musée de Minéralogie, Ecole des Mines de Paris
National Museum of Natural History, Washington
Geological Setting of Type Material:
Granite pegmatite
Associated Minerals at Type Locality:

Synonyms of MélonjosephiteHide

Other Language Names for MélonjosephiteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
2 photos of Mélonjosephite associated with Hureaulite(Mn,Fe)5(PO4)2(HPO4)2 · 4H2O
2 photos of Mélonjosephite associated with TavoriteLiFe3+(PO4)(OH)

Related Minerals - Nickel-Strunz GroupingHide

8.BG.CanosioiteBa2Fe3+(AsO4)2(OH)Mon. 2/m : P21/m
8.BG.05ArsentsumebitePb2Cu(AsO4)(SO4)(OH)Mon. 2/m : P21/m
8.BG.05BearthiteCa2Al(PO4)2(OH)Mon. 2/m : P21/m
8.BG.05BrackebuschitePb2Mn3+(VO4)2(OH)Mon. 2/m : P21/m
8.BG.05GamagariteBa2Fe3+(VO4)2(OH)Mon. 2/m : P21/m
8.BG.05GoedkeniteSr2Al(PO4)2(OH)Mon. 2/m : P21/m
8.BG.05UM1994-19-PO:CuHMoPbPb2Cu(PO4)(MoO4,AsO4,CrO4,GaO4)(OH)
8.BG.05TsumebitePb2Cu(PO4)(SO4)(OH)Mon. 2/m : P21/m
8.BG.05ArsenbrackebuschitePb2Fe3+(AsO4)2(OH)Mon. 2/m : P2/m
8.BG.05FeinglositePb2Zn(AsO4)2 · H2OMon. 2/m
8.BG.05BushmakinitePb2Al(PO4)(VO4)(OH)Mon. 2/m : P21/m
8.BG.05TokyoiteBa2Mn3+(VO4)2(OH)Mon. 2/m : P21/m
8.BG.05CalderónitePb2Fe3+(VO4)2(OH)Mon. 2/m : P21/m
8.BG.15TancoiteLiNa2Al(PO4)(HPO4)(OH)Orth. mmm (2/m 2/m 2/m) : Pbca

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

19.14.1CyriloviteNaFe3+3(PO4)2(OH)4 · 2H2OTet. 4 2 2 : P41 21 2
19.14.2KidwelliteNaFe3+9+x(PO4)6(OH)11 · 3H2O, x = 0.33Mon. 2/m : P2/b
19.14.3Rosemaryite(Na,Ca,Mn)(Mn,Fe2+)(Fe3+,Mg)Al(PO4)3Mon. 2/m : P21/b
19.14.4Wyllieite(Na,Ca,Mn)(Mn,Fe)(Fe,Mg)Al(PO4)3Mon. 2/m
19.14.5Ferrowyllieite(Na,Ca,Mn)(Fe,Mn)(Fe,Fe,Mg)Al(PO4)3Mon. 2/m : P21/b
19.14.6NatrodufréniteNaFe2+Fe3+5(PO4)4(OH)6 · 2H2OMon.
19.14.7LeucophosphiteKFe3+2(PO4)2(OH) · 2H2OMon. 2/m : P21/b
19.14.8Spheniscidite(NH4,K)(Fe3+,Al)2(PO4)2(OH) · 2H2OMon.
19.14.9BurangaiteNaFe2+Al5(PO4)4(OH)6 · 2H2OMon. 2/m : B2/b
19.14.10Satterlyite(Fe2+,Mg,Fe)12(PO4)5(PO3OH)(OH,O)6Trig. 3m (3 2/m) : P3 1m
19.14.11UshkoviteMgFe3+2(PO4)2(OH)2 · 8H2OTric.
19.14.12Garyansellite(Mg,Fe)3(PO4)2(OH,O) · 1.5H2OOrth. mmm (2/m 2/m 2/m)
19.14.13ThadeuiteCa(Mg,Fe2+)3(PO4)2(OH,F)2Orth. 2 2 2 : C2 2 21
19.14.14AnapaiteCa2Fe2+(PO4)2 · 4H2OTric. 1 : P1
19.14.15XanthoxeniteCa4Fe3+2(PO4)4(OH)2 · 3H2OTric. 1 : P1
19.14.16CalcioferriteCa2Fe3+2(PO4)3(OH) · 7H2OMon. 2/m : B2/b
19.14.17MitridatiteCa2Fe3+3(PO4)3O2 · 3H2OMon. 2/m : B2/b
19.14.19DelvauxiteCaFe4(PO4,SO4)2(OH)8 · 4-6H2O not confirmedAmor.
19.14.20CollinsiteCa2Mg(PO4)2 · 2H2OTric. 1 : P1
19.14.21SegeleriteCa2 Mg2 Fe3+2(PO4)4(OH)2 · 8H2OOrth. mmm (2/m 2/m 2/m) : Pcca
19.14.22KingsmountiteCa3MnFeAl4(PO4)6(OH)4·12H2OMon. 2 : B2
19.14.23VauxiteFe2+Al2(PO4)2(OH)2 · 6H2OTric. 1 : P1
19.14.24MetavauxiteFe2+Al2(PO4)2(OH)2 · 8H2OMon. 2/m : P21/b
19.14.25ParavauxiteFe2+Al2(PO4)2(OH)2 · 8H2OTric. 1 : P1
19.14.26SigloiteFe3+Al2(PO4)2(OH)3 · 7H2OTric.
19.14.27CacoxeniteFe3+24AlO6(PO4)17(OH)12 · 75H2OHex. 6/m : P63/m
19.14.28KoninckiteFe3+PO4 · 3H2OTet.
19.14.29LazuliteMgAl2(PO4)2(OH)2Mon. 2/m : P21/b
19.14.30ScorzaliteFe2+Al2(PO4)2(OH)2Mon. 2/m : P21/b
19.14.31Souzalite(Mg,Fe2+)3(Al,Fe3+)4(PO4)4(OH)6 · 2H2OTric.
19.14.32Gormanite(Fe2+,Mg)3(Al,Fe3+)4(PO4)4(OH)6 · 2H2OTric.
19.14.33ZaïriteBiFe3+3(PO4)2(OH)6Trig. 3m (3 2/m) : R3m

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 MélonjosephiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Fransolet, A.-M. (1973) La mélonjosephite, CaFe2+Fe3+(PO4)2(OH), une nouvelle espèce minérale. Bulletin de la Société Française de Minéralogie et de Cristallographie: 96: 135–142. [in French with English abs.]
Fleischer, M., Mandarino, J.A. (1975) New mineral names. American Mineralogist: 60: 945-947.
Kampf, A.R., Moore, P.B. (1977) Melonjosephite, calcium iron hydroxy phosphate: its crystal structure. American Mineralogist: 62: 60–66.

Internet Links for MélonjosephiteHide

Localities for MélonjosephiteHide

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.
Antarctica
 
  • Eastern Antarctica
    • Princess Elizabeth Land
      • Ingrid Christensen Coast
        • Prydz Bay
          • Larsemann Hills (Larseman Hills)
            • Stornes Peninsula
Grew, E.S., Armbruster, T., Medenbach, O., Yates, M.G., Carson, C.J. (2006): Tassieite, (Na,◻)Ca2(Mg,Fe2+,Fe3+)2(Fe3+,Mg)2(Fe2+,Mg)2(PO4)6•2H2O, a hydrothermal wicksite-group mineral in fluorapatite nodules from granulite-facies paragneiss in the Larsemann Hills, Prydz Bay, East Antarctica. Canadian Mineralogist, 45, 293-305(2007).
Bolivia
 
  • Potosí
    • Rafael Bustillo
      • Llallagua
Hyrsl, J. & A. Petrov (2006): Famous Mineral Localities: Llallagua, Bolivia. Mineralogical Record. 37: 117-162
Czech Republic
 
  • Central Bohemian Region
    • Kutná Hora District
Povondra, P., Pivec, E. (eds.) et al.: Přibyslavice peraluminuous granite. Acta universitatis carolinae, Geologica, 1987, no. 3, s . 183 – 283.
Morocco (TL)
 
  • Drâa-Tafilalet Region
    • Ouarzazate Province
      • Tazenakht
Fransolet, A.-M. (1973): La mélonjosephite, CaFe2+Fe3+(PO4)2(OH), une nouvelle espèce minérale. Bull. Soc. fr. Minéral., 96, 135–142 (in French with English abs.).
Namibia
 
  • Erongo Region
    • Dâures
Von Bezing, L., Bode, R., and Jahn, S., (2008) Namibia Minerals and Localities. Edition Schloss Freudenstein, Bode Verlag GmbH, Haltern. 409 (in English).
http://rruff.geo.arizona.edu/doclib/hom/melonjosephite.pdf
Poland
 
  • Lower Silesian Voivodeship
    • Świdnica County
      • Gmina Świdnica
Włodek, A., Pieczka, A. (2011): Primary phosphate mineralization in a granitic pegmatite at Lutomia (Sowie Mts block, SW Poland). Mineralogia Special Papers: 38: 188
 
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