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Mélonjosephite

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

Classification of Mélonjosephite

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
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Type Occurrence of Mélonjosephite

Physical Properties of Mélonjosephite

Adamantine, Greasy
Colour:
Dark green, nearly black.
Streak:
Greenish
Hardness (Mohs):
5

Optical Data of Mélonjosephite

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

Chemical Properties of Mélonjosephite

Formula:
CaFe2+Fe3+(PO4)2(OH)
Essential elements:
All elements listed in formula:

Relationship of Mélonjosephite to other Species

8.BG.05ArsentsumebitePb2Cu(AsO4)(SO4)(OH)
8.BG.05BearthiteCa2Al(PO4)2(OH)
8.BG.05BrackebuschitePb2Mn3+(VO4)2(OH)
8.BG.05GamagariteBa2Fe3+(VO4)2(OH)
8.BG.05GoedkeniteSr2Al(PO4)2(OH)
8.BG.05UM1994-19-PO:CuHMoPbPb2Cu(PO4)(MoO4,AsO4,CrO4,GaO4)(OH)
8.BG.05TsumebitePb2Cu(PO4)(SO4)(OH)
8.BG.05ArsenbrackebuschitePb2Fe3+(AsO4)2(OH)
8.BG.05FeinglositePb2Zn(AsO4)2 · H2O
8.BG.05BushmakinitePb2Al(PO4)(VO4)(OH)
8.BG.05TokyoiteBa2Mn3+(VO4)2(OH)
8.BG.05CalderónitePb2Fe3+(VO4)2(OH)
8.BG.15TancoiteLiNa2Al(PO4)(HPO4)(OH)
19.14.1CyriloviteNaFe33+(PO4)2(OH)4 · 2H2O
19.14.2KidwelliteNaFe3+9+x(PO4)6(OH)11 · 3H2O, x = 0.33
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
19.14.15XanthoxeniteCa4Fe23+(PO4)4(OH)2 · 3H2O
19.14.16CalcioferriteCa2Fe23+(PO4)3(OH) · 7H2O
19.14.17MitridatiteCa2Fe33+(PO4)3O2 · 3H2O
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 Mélonjosephite

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 Mélonjosephite

Reference List:
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.).

American Mineralogist (1975): 60: 946.

Kampf, A.R. and P.B. Moore (1977): Melonjosephite, calcium iron hydroxy phosphate: its crystal structure. Am. Mineral., 62, 60–66.


Internet Links for Mélonjosephite

Localities for Mélonjosephite

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.
Bolivia
 
  • Potosí Department
    • Rafael Bustillo Province (Bustillos Province)
      • Llallagua
Hyrsl, J. & A. Petrov (2006): Famous Mineral Localities: Llallagua, Bolivia. Mineralogical Record. 37: 117-162
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.
Morocco (TL)
 
  • Souss-Massa-Draâ 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
    • Karibib District
      • Usakos
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
Mineral and/or Locality  
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