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Deloneite-(Ce)

Big Photo

Koashva Mt, Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia
© 2006 M. Kampf

Formula:
NaCa
 
2
SrCe(PO
 
4
)
 
3
F
System:TrigonalColour:Bright yellow
Lustre:VitreousHardness:5
Name:For B. N. Delone (Delaunay) (1890-1980), Russian mathematical crystallographer.
This page provides mineralogical data about Deloneite-(Ce).

Classification of Deloneite-(Ce)

IMA status:Approved
Strunz 8th edition ID:7/B.38-05
Nickel-Strunz 10th (pending) edition ID:8.BN.05

8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
N : With only large cations, (OH, etc.):RO4 = 0.33:1
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Type Occurrence of Deloneite-(Ce)

Type Locality:Koashva Mt, Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia

Physical Properties of Deloneite-(Ce)

Lustre:Vitreous
Colour:Bright yellow
Streak:White
Hardness (Mohs):5

Crystallography of Deloneite-(Ce)

Crystal System:Trigonal

Optical Data of Deloneite-(Ce)

Type:Uniaxial (-)
RI values: nω = 1.682 nε = 1.660
Maximum Birefringence:δ = 0.022

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:High

Chemical Properties of Deloneite-(Ce)

Formula:
NaCa
 
2
SrCe(PO
 
4
)
 
3
F
Essential elements:Ca, Ce, F, Na, O, P, Sr
All elements listed in formula:Ca, Ce, F, Na, O, P, Sr

Relationship of Deloneite-(Ce) to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
8.BN.05Alforsite
Ba
 
5
[Cl|(PO
 
4
)
 
3
]
8.BN.05Belovite-(Ce)
NaSr
 
3
(Ce,La)[(F,OH)|(PO
 
4
)
 
3
]
8.BN.05Carbonate-rich Apatite-(CaF)
Ca
 
5
[(F,O)|(PO
 
4
,CO
 
3
)
 
3
]
8.BN.05Carbonate-rich Apatite-(CaOH)
Ca
 
5
[(OH,O)|(PO
 
4
,CO
 
3
)
 
3
]
8.BN.05Apatite-(CaCl)
Ca
 
5
[Cl|(PO
 
4
)
 
3
]
8.BN.05Clinomimetite
Pb
 
5
[Cl|(AsO
 
4
)
 
3
]
8.BN.05Fermorite
(Ca,Sr)
 
5
(AsO
 
4
,PO
 
4
)
 
3
(OH)
8.BN.05Apatite-(CaF)
Ca
 
5
[F|(PO
 
4
)
 
3
]
8.BN.05Hedyphane
Pb
 
3
Ca
 
2
[Cl|(AsO
 
4
)
 
3
]
8.BN.05Apatite-(CaOH)
Ca
 
5
[OH|(PO
 
4
)
 
3
]
8.BN.05Johnbaumite
Ca
 
5
[OH|(AsO
 
4
)
 
3
]
8.BN.05Mimetite
Pb
 
5
[Cl|(AsO
 
4
)
 
3
]
8.BN.05Morelandite
(Ba,Ca,Pb)
 
5
[Cl|(AsO
 
4
,PO
 
4
)
 
3
]
8.BN.05Pyromorphite
Pb
 
5
[Cl|(PO
 
4
)
 
3
]
8.BN.05Apatite-(SrOH)
(Sr,Ca)
 
5
(PO
 
4
)
 
3
(OH,F)
8.BN.05Svabite
Ca
 
5
[(F,Cl,OH)|(AsO
 
4
)
 
3
]
8.BN.05Turneaureite
Ca
 
5
[Cl|(AsO
 
4
,PO
 
4
)
 
3
]
8.BN.05Vanadinite
Pb
 
5
[Cl|(VO
 
4
)
 
3
]
8.BN.05Belovite-(La)
NaSr
 
3
(La,Ce)[(F,OH)|(PO
 
4
)
 
3
]
8.BN.05Fluorcaphite
(Ca,Sr,Ce,Na)
 
5
[F|(PO
 
4
)
 
3
]
8.BN.05Kuannersuite-(Ce)
NaBa
 
3
(Ce,Nd,La)[(F,Cl)|(PO
 
4
)
 
3
]
8.BN.05Apatite-(CaOH)-M
(Ca,Na)
 
3
Ca
 
2
[(OH,Cl)|(PO
 
4
,SO
 
4
)
 
3
]
8.BN.05Phosphohedyphane
Pb
 
3
Ca
 
2
[Cl|(PO
 
4
)
 
3
]
8.BN.05IMA2008-009
Sr
 
5
(PO
 
4
)
 
3
F
8.BN.10Arctite
Na
 
2
Ca
 
4
(PO
 
4
)
 
3
F

Other Names for Deloneite-(Ce)

Synonyms:
IMA1995-036
Other Languages:
Russian:Делонеит-(Ce)

Other Information

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 Deloneite-(Ce)

Reference List:Mineralogical Record: 28: 401.

Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva: 125(5): 83-94.

Doklady Akademii Nauk: 349(3): 354-357.

Articles/Blogs about Deloneite-(Ce)

Internet Links for Deloneite-(Ce)

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    Localities for Deloneite-(Ce)

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    Russia
     
    • Northern Region
      • Murmanskaja Oblast'
        • Kola Peninsula
          • Khibiny Massif
    Mineral and/or Locality
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