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|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
|Strunz 8th edition ID:||7/B.23-10|
|Nickel-Strunz 10th (pending) edition ID:||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
|Dana 8th edition ID:||22.214.171.124|
41 : ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
10 : (AB)3(XO4)2Zq
|Hey's CIM Ref.:||19.14.18|
19 : Phosphates
14 : Phosphates of Fe and other metals
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Type Occurrence of Mélonjosephite
|Type Locality:||Angarf-South pegmatite, Tazenakht, Ouarzazate Province, Souss-Massa-Draâ Region, Morocco|
Physical Properties of Mélonjosephite
|Colour:||Dark green, nearly black.|
Optical Data of Mélonjosephite
|RI values:||nα = 1.720 nβ = 1.770 nγ = 1.800|
|2V:||Measured: 80° to 85°, Calculated: 72°|
|Maximum Birefringence:||δ = 0.080|
Chart 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
|Simplified for copy/paste:||CaFe2+Fe3+(PO4)2(OH)|
|Essential elements:||Ca, Fe, H, O, P|
|All elements listed in formula:||Ca, Fe, H, O, P|
Relationship of Mélonjosephite to other Species
|Related Minerals - Nickel-Strunz Grouping):|
|Related Minerals - Hey's Index Grouping:|
Other Names for Mélonjosephite
|Health Warning:||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
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
The 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. ? 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.