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Belovite-(La)

Big Photo

Kirovskii apatite mine (Kirovsky Mine; Kirov Mine), Kukisvumchorr Mt, Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia
© 2007, JGW

Formula:
NaSr
 
3
(La,Ce)[(F,OH)|(PO
 
4
)
 
3
]
System:TrigonalColour:greenish yellow to ...
Lustre:VitreousHardness:5
Name:for lanthanum dominant over cerium and its relation to belovite-(Ce)


Apatite Group. The lanthanum analogue of Belovite-(Ce). The NaSr3La analogue of Fluorapatite.

Classification of Belovite-(La)

IMA status:Approved 1995
Strunz 8th edition ID:7/B.39-115
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 Belovite-(La)

Co-type Localities:Eveslogchorr Mt, Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia
Kirovskii apatite mine (Kirovsky Mine; Kirov Mine), Kukisvumchorr Mt, Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia
Place of Conservation of Type Material:AE Fersman Mineralogical Museum, Moscow; p1523
Mining Institute, St. Petersburg; 3026/24

Physical Properties of Belovite-(La)

Lustre:Vitreous
Diaphaneity (Transparency):Transparent
Colour:greenish yellow to bright yellow
Hardness (Mohs):5
Hardness (Vickers):VHN30=450 kg/mm2
Tenacity:Very brittle
Fracture:Conchoidal
Density (measured):4.19 g/cm3
Density (calculated):4.05 g/cm3

Crystallography of Belovite-(La)

Crystal System:Trigonal
Class (H-M):3 - Rhombohedral
Space Group:P3
Cell Parameters:a = 9.647Å, c = 7.17Å
Ratio:a:c = 1 : 0.743
Unit Cell Volume:V 577.88 ų (Calculated from Unit Cell)
Z:2
Morphology:prismatic crystals to 3cm; granular
X-Ray Powder Diffraction:
d-spacingIntensity
2.897 (100)
2.884 (100)
3.59 (87)
3.30 (65)
2.790 (54)
1.910 (36)
Comments:close to belovite-(Ce)

Optical Data of Belovite-(La)

Type:Uniaxial (-)
RI values: nω = 1.653 nε = 1.635 - 1.636
Maximum Birefringence:δ = 0.018

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

Chemical Properties of Belovite-(La)

Formula:
NaSr
 
3
(La,Ce)[(F,OH)|(PO
 
4
)
 
3
]
Essential elements:F, O, P, Sr
All elements listed in formula:Ce, F, H, La, Na, O, P, Sr
Common Impurities:Ca,Ba,Pr,Nd,Sm,Gd,Y,Th,Si,P,S

Relationship of Belovite-(La) to other Species

Member of Group:
Apatite Supergroup:
A
 
5
(XO
 
4
)
 
3
Z
 
q
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.05Deloneite-(Ce)
NaCa
 
2
SrCe(PO
 
4
)
 
3
F
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.05IMA2008-068
Ca
 
2
Pb
 
3
(PO
 
4
)
 
3
F
8.BN.10Arctite
Na
 
2
Ca
 
4
(PO
 
4
)
 
3
F

Other Names for Belovite-(La)

Synonyms:
IMA1995-023
Other Languages:
German:Belovit-(La)
Russian:Беловит-(La)

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 Belovite-(La)

Reference List:Pekov, I.V., et al. (1996): Zap. Vses. Mineral. Oshch. 125(3):101-109.

American Mineralogist (1997): 82: 620 (abstract).

Mineralogical Record: 28: 219-220.

Internet Links for Belovite-(La)

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    Localities for Belovite-(La)

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