登录
Belovite-(La)
A valid IMA mineral species
This page is currently not sponsored. Click here to sponsor this page.
About Belovite-(La)
Nikolai V. Belov
Formula:
NaLaSr3(PO4)3F
Colour:
Greenish yellow to bright yellow
Lustre:
Vitreous
Hardness:
5
Specific Gravity:
4.19
Crystal System:
Trigonal
Member of:
Name:
It was described as a new species by Pekov et al.(1996) and named for its relationship to belovite-(Ce), with lanthanum as the dominant REE. The root name is for Nikolai Vasil'evich Belov (14 December 1891 Ianov, Lublin Province, Poland (now Ukraine) - 6 March 1982 Moscow, Russia), former Head of the Crystallography and Crystallochemistry Department, Moscow Lomonosov State University, Moscow, Russia.
A mineral in the Belovite Group of the Apatite Supergroup. The lanthanum analogue of belovite-(Ce). The NaSr3La analogue of fluorapatite.
Unique Identifiers
Mindat ID:
6822
Long-form identifier:
mindat:1:1:6822:8
Similar Names
| Belkovite | A valid IMA mineral species | Ba3(Nb,Ti)6(Si2O7)2O12 |
| Belonite (of Glocker) | A synonym of Aikinite | |
| Belonite (of Zirkel) | ||
| Belovite | A synonym | |
| Belovite (of Nefedov) | A synonym of Talmessite | |
| Belovite-(Ce) | A valid IMA mineral species - grandfathered | NaCeSr3(PO4)3F |
| Bolivite |
IMA Classification of Belovite-(La)
Approved
Approval year:
1995
First published:
1996
Type description reference:
Classification of Belovite-(La)
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
8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
N : With only large cations, (OH, etc.):RO4 = 0.33:1
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference for Standard |
|---|---|---|
| Blv-La | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Belovite-(La)
Vitreous
Transparency:
Transparent
Colour:
Greenish yellow to bright yellow
Hardness:
5 on Mohs scale
Hardness:
VHN30=450 kg/mm2 - Vickers
Tenacity:
Very brittle
Cleavage:
None Observed
Fracture:
Conchoidal
Density:
4.19 g/cm3 (Measured) 4.05 g/cm3 (Calculated)
Optical Data of Belovite-(La)
Type:
Uniaxial (-)
RI values:
nω = 1.653 nε = 1.635 - 1.636
Max. Birefringence:
δ = 0.017 - 0.018
Based on recorded range of RI values above.
Based on recorded range of RI values above.
Interference Colours:
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.
Surface Relief:
High (positive)
Relative to Canada balsam mounting medium (n ≈ 1.537).
Relative to Canada balsam mounting medium (n ≈ 1.537).
This shows the grain boundary and Becke line effect under plane-polarised
light, based on the contrast between this mineral's average refractive
index and the mounting medium. It does not take into account mineral
colouration.
In focus
Interference Figure:
This shows the idealized uniaxial interference figure - the conoscopic
(convergent-light, Bertrand-lens-in) view, for a grain cut with the optic axis
centred and vertical. The coloured rings are isochromatics, computed with the
same physics as the Michel-Lévy bar above; the dark cross is the isogyre.
For a genuinely uniaxial mineral viewed this way, that cross stays perfectly stationary if you rotate the stage - unlike a biaxial mineral, where it splits apart on rotation. That invariance is itself the standard diagnostic test for telling uniaxial and biaxial minerals apart at the microscope.
For a genuinely uniaxial mineral viewed this way, that cross stays perfectly stationary if you rotate the stage - unlike a biaxial mineral, where it splits apart on rotation. That invariance is itself the standard diagnostic test for telling uniaxial and biaxial minerals apart at the microscope.
Chemistry of Belovite-(La)
Mindat Formula:
NaLaSr3(PO4)3F
Element Weights:
Common Impurities:
Ca,Ba,Pr,Nd,Sm,Gd,Y,Th,Si,P,S
Crystallography of Belovite-(La)
Crystal System:
Trigonal
Class (H-M):
3 - Rhombohedral
Space Group:
P3
Cell Parameters:
a = 9.647 Å, c = 7.17 Å
Ratio:
a:c = 1 : 0.743
Unit Cell V:
577.88 ų (Calculated from Unit Cell)
Z:
2
Morphology:
Equant to elongate [001], most commonly with {1010} and {0001}, less commonly also with {1011}, {1011}, {1121}, {1121} and {1120}.
Crystal Structure
Load
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Show
Big Balls | Small Balls | Just Balls | Spacefill
Polyhedra Off | Si Polyhedra | All Polyhedra
Remove metal-metal sticks
Big Balls | Small Balls | Just Balls | Spacefill
Polyhedra Off | Si Polyhedra | All Polyhedra
Remove metal-metal sticks
Display Options
Black Background | White Background
Perspective On | Perspective Off
2D | Stereo | Red-Blue | Red-Cyan
Black Background | White Background
Perspective On | Perspective Off
2D | Stereo | Red-Blue | Red-Cyan
View
CIF File Best | x | y | z | a | b | c
CIF File Best | x | y | z | a | b | c
Rotation
Stop | Start
Stop | Start
Labels
Console Off | On | Grey | Yellow
Console Off | On | Grey | Yellow
Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0015622 | Belovite-(La) | Kabalov Y K, Sokolova E V, Pekov I V (1997) Crystal structure of belovite-(La) Soviet Physics Doklady 42 344-348 | 1997 | Mt. Kukisvumchorr, Khibiny alkaline massif, Kola Peninsula, Russia | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 2.897 Å | (100) |
| 2.884 Å | (100) |
| 3.59 Å | (87) |
| 3.30 Å | (65) |
| 2.790 Å | (54) |
| 1.910 Å | (36) |
| 1.796 Å | (36) |
Reference:
Comments:
close to belovite-(Ce)
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Near-surface Processes | |
| 23 : Subaerial aqueous alteration by non-redox-sensitive fluids (see also #47) | |
| Stage 4b: Highly evolved igneous rocks | >3.0 |
| 36 : Carbonatites, kimberlites, and related igneous rocks |
Type Occurrence of Belovite-(La)
Co-Type Localities:
General Appearance of Type Material:
Occurs as well formed crystals up to 3 cm long, and as irregular grains and aggregates.
Place of Conservation of Type Material:
A.E. Fersman Mineralogical Museum, Moscow, Russia, p1523.
Mining Institute, St. Petersburg, Russia, 3026/24.
Mining Institute, St. Petersburg, Russia, 3026/24.
Geological Setting of Type Material:
Pegmatite.
Associated Minerals at Type Locality:
Synonyms of Belovite-(La)
Belovite (in part)
Other Language Names for Belovite-(La)
Relationship of Belovite-(La) to other Species
Member of:
Other Members of Belovite Group:
| Belovite-(Ce) | NaCeSr3(PO4)3F | Trig. 3 : P3 |
| Carlgieseckeite-(Nd) | NaNdCa3(PO4)3F | Trig. 3 : P3 |
| Deloneite | (Na0.5REE0.25Ca0.25)(Ca0.75REE0.25)Sr1.5(CaNa0.25REE0.25)(PO4)3F0.5(OH)0.5 | Trig. 3 : P3 |
| Fluorcaphite | SrCaCa3(PO4)3F | Hex. 6/m : P63/m |
| Fluorstrophite | SrCaSr3(PO4)3F | Hex. 6/m : P63/m |
| Kuannersuite-(Ce) | NaCeBa3(PO4)3F0.5Cl0.5 | Trig. 3 : P3 |
Common Associates
Associations Based on Photo Data:
Related Minerals - Strunz-mindat Grouping
| 8.BN. | Fluoralforsite | Ba5(PO4)3F |
| 8.BN. | Aradite | BaCa6[(SiO4)(VO4)](VO4)2F |
| 8.BN. | Magganasite | CuFe3+3O(AsO4)3 |
| 8.BN. | Fluorpyromorphite | Pb5(PO4)3F |
| 8.BN. | Fluorsigaiite | Ca2Sr3(PO4)3F |
| 8.BN.05 | Pieczkaite | Mn5(PO4)3Cl |
| 8.BN.05 | Fluorapatite | Ca5(PO4)3F |
| 8.BN.05 | Fluorcaphite | SrCaCa3(PO4)3F |
| 8.BN.05 | Vanadinite | Pb5(VO4)3Cl |
| 8.BN.05 | Hedyphane | Ca2Pb3(AsO4)3Cl |
| 8.BN.05 | Hydroxylhedyphane | Ca2Pb3(AsO4)3(OH) |
| 8.BN.05 | 'Mimetite-M' | Pb5(AsO4)3Cl |
| 8.BN.05 | Johnbaumite | Ca5(AsO4)3(OH) |
| 8.BN.05 | Pliniusite | Ca5(VO4)3F |
| 8.BN.05 | 'Hydroxylapatite-M' | Ca5(PO4)3OH |
| 8.BN.05 | Hydroxylpyromorphite | Pb5(PO4)3(OH) |
| 8.BN.05 | Miyahisaite | (Sr,Ca)2Ba3(PO4)3F |
| 8.BN.05 | Carlgieseckeite-(Nd) | NaNdCa3(PO4)3F |
| 8.BN.05 | Belovite-(Ce) | NaCeSr3(PO4)3F |
| 8.BN.05 | Kuannersuite-(Ce) | NaCeBa3(PO4)3F0.5Cl0.5 |
| 8.BN.05 | Alforsite | Ba5(PO4)3Cl |
| 8.BN.05 | 'Unnamed (OH-analogue of Mimetite)' | Pb5(AsO4)3(OH) |
| 8.BN.05 | Stronadelphite | Sr5(PO4)3F |
| 8.BN.05 | Parafiniukite | Ca2Mn3(PO4)3Cl |
| 8.BN.05 | Mimetite | Pb5(AsO4)3Cl |
| 8.BN.05 va | 'Germanate-pyromorphite' | Pb5(PO4)2GeO4 |
| 8.BN.05 | Fluorphosphohedyphane | Ca2Pb3(PO4)3F |
| 8.BN.05 | Fluorstrophite | SrCaSr3(PO4)3F |
| 8.BN.05 | Hydroxylapatite | Ca5(PO4)3(OH) |
| 8.BN.05 | 'Johnbaumite-M' | Ca5(AsO4)3OH |
| 8.BN.05 | Phosphohedyphane | Ca2Pb3(PO4)3Cl |
| 8.BN.05 | Turneaureite | Ca5(AsO4)3Cl |
| 8.BN.05 | Morelandite | Ca2Ba3(AsO4)3Cl |
| 8.BN.05 | 'Oxypyromorphite' | Pb10(PO4)6O |
| 8.BN.05 | Deloneite | (Na0.5REE0.25Ca0.25)(Ca0.75REE0.25)Sr1.5(CaNa0.25REE0.25)(PO4)3F0.5(OH)0.5 |
| 8.BN.05 | Chlorapatite | Ca5(PO4)3Cl |
| 8.BN.05 | Pyromorphite | Pb5(PO4)3Cl |
| 8.BN.05 | Vanackerite | Pb4Cd(AsO4)3Cl |
| 8.BN.05 | Svabite | Ca5(AsO4)3F |
| 8.BN.10 | Arctite | Na2Ca4(PO4)3F |
| 8.BN.10 | Krügerite | BaCa6(SiO4)2[(P0.5S0.5)O4]2F |
| 8.BN.15 | Goryainovite | Ca2(PO4)Cl |
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.
Internet Links for Belovite-(La)
mindat.org URL:
https://www.mindat.org/min-6822.html
Please feel free to link to this page.
Please feel free to link to this page.
Search Engines:
External Links:
Mineral Dealers:
References for Belovite-(La)
Localities for Belovite-(La)
Showing 4 localities.
symbol to view information about a locality.
The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and 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).
All localities listed without proper references should be considered as questionable.
Russia (TL) | |
| Men'shikov (2006) +1 other reference |
| Men'shikov (2006) | |
| Pekov (1998) +1 other reference |
| ... |
Quick NavTopAbout Belovite-(La)Unique IdentifiersSimilar NamesIMA Classification Classification Mineral SymbolsPhysical Properties Optical Data Chemistry Crystallography Crystal StructureX-Ray Powder DiffractionGeological EnvironmentType Occurrence SynonymsOther LanguagesRelationshipsCommon AssociatesStrunz-MindatOther InformationInternet Links References Localities Locality List
Kirovskii apatite mine, Kukisvumchorr Mt, Murmansk Oblast, Russia