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Fluorcaphite

A valid IMA mineral species
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About FluorcaphiteHide

Formula:
SrCaCa3(PO4)3F
Colour:
Bright yellow
Lustre:
Vitreous
Hardness:
5
Specific Gravity:
3.60
Crystal System:
Hexagonal
Name:
Named after its constituting elements of fluorine, calcium, and phosphorous

Unique IdentifiersHide

Mindat ID:
6948
Long-form identifier:
mindat:1:1:6948:5
GUID
(UUID V4):
0b3b57e6-a037-41ae-9d6a-b7c1aa2de548

IMA Classification of FluorcaphiteHide

Classification of FluorcaphiteHide

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

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference
FcpIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of FluorcaphiteHide

Vitreous
Colour:
Bright yellow
Hardness:
Tenacity:
Brittle
Density:
3.60 g/cm3 (Measured)    3.57 g/cm3 (Calculated)

Optical Data of FluorcaphiteHide

Type:
Uniaxial (-)
RI values:
nω = 1.649 nε = 1.637
Max Birefringence:
δ = 0.012
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate

Chemistry of FluorcaphiteHide

Mindat Formula:
SrCaCa3(PO4)3F

Crystallography of FluorcaphiteHide

Crystal System:
Hexagonal
Class (H-M):
6/m - Dipyramidal
Space Group:
P63/m
Cell Parameters:
a = 9.485(3) Å, c = 7.000(3) Å
Ratio:
a:c = 1 : 0.738
Unit Cell V:
545.39 ų (Calculated from Unit Cell)
Z:
2

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0006014FluorcaphiteChakhmouradian A R, Hughes J M, Rakovan J F (2005) Fluorcaphite, a second occurrence and detailed structural analysis: Simultaneous accommodation of Ca, Sr, Na, LREE in the apatite atomic arrangement The Canadian Mineralogist 43 735-74620050293
0006015FluorcaphiteChakhmouradian A R, Hughes J M, Rakovan J F (2005) Fluorcaphite, a second occurrence and detailed structural analysis: Simultaneous accommodation of Ca, Sr, Na, LREE in the apatite atomic arrangement The Canadian Mineralogist 43 735-74620050293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.498 Å(45)
2.838 Å(100)
2.814 Å(48)
2.740 Å(53)
1.865 Å(31)

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 4b: Highly evolved igneous rocks>3.0
36 : Carbonatites, kimberlites, and related igneous rocks

Type Occurrence of FluorcaphiteHide

General Appearance of Type Material:
Subhedral prisms up to 5 mm long, and in aggregates up to 15 mm across.
Place of Conservation of Type Material:
A. E. Fersman Mineralogical Museum, Moscow, Russia.
Geological Setting of Type Material:
In miarolitic cavities in the central part of a hyperagpaitic pegmatite in ijolite-urtite.
Associated Minerals at Type Locality:
Reference:
Khomyakov, A.P., Kulikova, I.M., Rastsvetaeva, R.K. (1997) Fluorcaphite Ca(Sr,Na,Ca)(Ca,Sr,Ce)3(PO4)3F – a new mineral with the apatite structural motif. Zapiski Vserossijskogo Mineralogicheskogo Obshchestva: 126(3): 87-97.

Synonyms of FluorcaphiteHide

Other Language Names for FluorcaphiteHide

Relationship of Fluorcaphite to other SpeciesHide

Other Members of this group:
Belovite-(Ce)NaCeSr3(PO4)3FTrig. 3 : P3
Belovite-(La)NaLaSr3(PO4)3FTrig. 3 : P3
Carlgieseckeite-(Nd)NaNdCa3(PO4)3FTrig. 3 : P3
Deloneite(Na0.5REE0.25Ca0.25)(Ca0.75REE0.25)Sr1.5(CaNa0.25REE0.25)(PO4)3F0.5(OH)0.5Trig. 3 : P3
FluorstrophiteSrCaSr3(PO4)3FHex. 6/m : P63/m
Kuannersuite-(Ce)NaCeBa3(PO4)3F0.5Cl0.5Trig. 3 : P3

Common AssociatesHide

Associated Minerals Based on Photo Data:
3 photos of Fluorcaphite associated with PectoliteNaCa2Si3O8(OH)
1 photo of Fluorcaphite associated with VilliaumiteNaF

Related Minerals - Strunz-mindat GroupingHide

8.BN.AraditeBaCa6[(SiO4)(VO4)](VO4)2FTrig. 3m : R3m
8.BN.MagganasiteCuFe3+3O(AsO4)3Tric. 1 : P1
8.BN.FluorpyromorphitePb5(PO4)3FHex. 6/m : P63/m
8.BN.FluorsigaiiteCa2Sr3(PO4)3FHex. 6/m : P63/m
8.BN.FluoralforsiteBa5(PO4)3FHex. 6/m : P6/m
8.BN.05AlforsiteBa5(PO4)3ClHex. 6/m : P63/m
8.BN.05Belovite-(Ce)NaCeSr3(PO4)3FTrig. 3 : P3
8.BN.05ChlorapatiteCa5(PO4)3ClHex. 6/m : P63/m
8.BN.05Mimetite-MPb5(AsO4)3ClMon. 2/m : P21/b
8.BN.05Johnbaumite-MCa5(AsO4)3OHMon. 2/m : P21/m
8.BN.05FluorapatiteCa5(PO4)3FHex. 6/m : P63/m
8.BN.05HedyphaneCa2Pb3(AsO4)3ClHex. 6/mmm (6/m 2/m 2/m) : P63/mmc
8.BN.05HydroxylapatiteCa5(PO4)3(OH)Hex. 6/m : P63/m
8.BN.05JohnbaumiteCa5(AsO4)3(OH)Hex. 6/m : P63/m
8.BN.05MimetitePb5(AsO4)3ClHex. 6/m : P63/m
8.BN.05MorelanditeCa2Ba3(AsO4)3ClHex.
8.BN.05OxypyromorphitePb10(PO4)6O
8.BN.05PyromorphitePb5(PO4)3ClHex. 6/m : P63/m
8.BN.05FluorstrophiteSrCaSr3(PO4)3FHex. 6/m : P63/m
8.BN.05SvabiteCa5(AsO4)3FHex. 6/mmm (6/m 2/m 2/m) : P63/mmc
8.BN.05TurneaureiteCa5(AsO4)3ClHex. 6/m : P63/m
8.BN.05VanadinitePb5(VO4)3ClHex. 6/m : P63/m
8.BN.05Belovite-(La)NaLaSr3(PO4)3FTrig. 3 : P3
8.BN.05Deloneite(Na0.5REE0.25Ca0.25)(Ca0.75REE0.25)Sr1.5(CaNa0.25REE0.25)(PO4)3F0.5(OH)0.5Trig. 3 : P3
8.BN.05 vaGermanate-pyromorphitePb5(PO4)2GeO4
8.BN.05Kuannersuite-(Ce)NaCeBa3(PO4)3F0.5Cl0.5Trig. 3 : P3
8.BN.05Hydroxylapatite-MCa5(PO4)3OHMon. 2/m : P21/b
8.BN.05PhosphohedyphaneCa2Pb3(PO4)3ClHex. 6/m : P63/m
8.BN.05HydroxylpyromorphitePb5(PO4)3(OH)Hex. 6/mmm (6/m 2/m 2/m) : P63/mcm
8.BN.05StronadelphiteSr5(PO4)3FHex. 6/m : P63/m
8.BN.05FluorphosphohedyphaneCa2Pb3(PO4)3FHex. 6/m : P63/m
8.BN.05Carlgieseckeite-(Nd)NaNdCa3(PO4)3FTrig. 3 : P3
8.BN.05VanackeritePb4Cd(AsO4)3ClTrig. 3 : P3
8.BN.05Miyahisaite(Sr,Ca)2Ba3(PO4)3F Hex. 6/m : P63/m
8.BN.05Unnamed (OH-analogue of Mimetite)Pb5(AsO4)3(OH)Hex. 6/m : P63/m
8.BN.05PieczkaiteMn5(PO4)3ClHex. 6/m : P63/m
8.BN.05HydroxylhedyphaneCa2Pb3(AsO4)3(OH)Trig. 3 : P3
8.BN.05PliniusiteCa5(VO4)3FHex. 6/m : P63/m
8.BN.05ParafiniukiteCa2Mn3(PO4)3ClHex. 6/m : P63/m
8.BN.10ArctiteNa2Ca4(PO4)3FTrig. 3m (3 2/m) : R3m
8.BN.15GoryainoviteCa2(PO4)ClOrth. mmm (2/m 2/m 2/m) : Pbcm

Other InformationHide

IR Spectrum:
Distinct absorption bands at 400, 573, 601, 953, 1000 (shoulder), 1039, 1090 (shoulder), and two weak bands at 3360 and 3490 cm-1, generally corresponding to spectra for the apatite family.
Notes:
Readily soluble in 10% HCl or HNO3.
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 FluorcaphiteHide

References for FluorcaphiteHide

Reference List:

Localities for FluorcaphiteHide

This 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.

Locality ListHide

- 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). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Brazil
 
  • Minas Gerais
Russia
 
  • Khabarovsk Krai
    • Ayan-Maya district
  • Murmansk Oblast
    • Khibiny Massif
      • Koashva Mt
    • Lovozersky District
Tajikistan
 
  • Districts of Republican Subordination
 
Mineral and/or Locality  
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