Fluorcaphite
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About Fluorcaphite
Formula:
SrCaCa3(PO4)3F
Lustre:
Vitreous
Hardness:
5
Crystal System:
Hexagonal
Member of:
Name:
Named after its constituting elements of fluorine, calcium, and phosphorous
Classification of Fluorcaphite
Approved
Approval year:
1996
7/B.39-95
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
Physical Properties of Fluorcaphite
Vitreous
Hardness:
5 on Mohs scale
Optical Data of Fluorcaphite
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.
and does not take into account mineral colouration.
Surface Relief:
Moderate
Chemical Properties of Fluorcaphite
Crystallography of Fluorcaphite
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 Structure
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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) |
---|---|---|---|---|---|---|---|
0006014 | Fluorcaphite | Chakhmouradian 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 43 735-746 | ![]() | 2005 | 0 | 293 | |
0006015 | Fluorcaphite | Chakhmouradian 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 43 735-746 | ![]() | 2005 | 0 | 293 |
CIF Raw Data - click here to close
Type Occurrence of Fluorcaphite
Synonyms of Fluorcaphite
Other Language Names for Fluorcaphite
Relationship of Fluorcaphite to other Species
Member of:
Other Members of this group:
Belovite-(Ce) | NaCeSr3(PO4)3F | Trig. 3 : P3 |
Belovite-(La) | NaLaSr3(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 |
Fluorstrophite | SrCaSr3(PO4)3F | Hex. 6/m : P63/m |
Kuannersuite-(Ce) | NaCeBa3(PO4)3F0.5Cl0.5 | Trig. 3 : P3 |
Common Associates
Associated Minerals Based on Photo Data:
3 photos of Fluorcaphite associated with Pectolite | NaCa2Si3O8(OH) |
1 photo of Fluorcaphite associated with Villiaumite | NaF |
Related Minerals - Nickel-Strunz Grouping
8.BN. | Aradite | BaCa6[(SiO4)(VO4)](VO4)2F | Trig. 3m : R3m |
8.BN.05 | Alforsite | Ba5(PO4)3Cl | Hex. 6/m : P63/m |
8.BN.05 | Belovite-(Ce) | NaCeSr3(PO4)3F | Trig. 3 : P3 |
8.BN.05 | Carbonate-rich Fluorapatite | Ca5(PO4,CO3)3(F,O) | Hex. |
8.BN.05 | Carbonate-rich Hydroxylapatite | Ca5(PO4,CO3)3(OH,O) | Hex. |
8.BN.05 | Chlorapatite | Ca5(PO4)3Cl | Hex. 6/m : P63/m |
8.BN.05 | Mimetite-M | Pb5(AsO4)3Cl | Mon. 2/m : P21/b |
8.BN.05 | Johnbaumite-M | Ca5(AsO4)3OH | Mon. 2/m : P21/m |
8.BN.05 | Fluorapatite | Ca5(PO4)3F | Hex. 6/m : P63/m |
8.BN.05 | Hedyphane | Ca2Pb3(AsO4)3Cl | Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc |
8.BN.05 | Hydroxylapatite | Ca5(PO4)3(OH) | Hex. 6/m : P63/m |
8.BN.05 | Johnbaumite | Ca5(AsO4)3OH | Hex. 6/m : P63/m |
8.BN.05 | Mimetite | Pb5(AsO4)3Cl | Hex. 6/m : P63/m |
8.BN.05 | Morelandite | Ca2Ba3(AsO4)3Cl | Hex. |
8.BN.05 | Pyromorphite | Pb5(PO4)3Cl | Hex. 6/m : P63/m |
8.BN.05 | Fluorstrophite | SrCaSr3(PO4)3F | Hex. 6/m : P63/m |
8.BN.05 | Svabite | Ca5(AsO4)3F | Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc |
8.BN.05 | Turneaureite | Ca5(AsO4)3Cl | Hex. |
8.BN.05 | Vanadinite | Pb5(VO4)3Cl | Hex. 6/m : P63/m |
8.BN.05 | Belovite-(La) | NaLaSr3(PO4)3F | Trig. 3 : P3 |
8.BN.05 | Deloneite | (Na0.5REE0.25Ca0.25)(Ca0.75REE0.25)Sr1.5(CaNa0.25REE0.25)(PO4)3F0.5(OH)0.5 | Trig. 3 : P3 |
8.BN.05 | Kuannersuite-(Ce) | NaCeBa3(PO4)3F0.5Cl0.5 | Trig. 3 : P3 |
8.BN.05 | Hydroxylapatite-M | Ca5(PO4)3OH | Mon. 2/m : P21/b |
8.BN.05 | Phosphohedyphane | Ca2Pb3(PO4)3Cl | Hex. 6/m : P63/m |
8.BN.05 | Stronadelphite | Sr5(PO4)3F | Hex. 6/m : P63/m |
8.BN.05 | Fluorphosphohedyphane | Ca2Pb3(PO4)3F | Hex. 6/m : P63/m |
8.BN.05 | Carlgieseckeite-(Nd) | NaNdCa3(PO4)3F | Trig. 3 : P3 |
8.BN.05 | Miyahisaite | (Sr,Ca)2Ba3(PO4)3F | Hex. 6/m : P63/m |
8.BN.10 | Arctite | Na2Ca4(PO4)3F | Trig. 3m (3 2/m) : R3m |
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.
References for Fluorcaphite
Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Mineralogical Record: 29: 469-470.
Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva: 126(3): 87-97.
Internet Links for Fluorcaphite
mindat.org URL:
https://www.mindat.org/min-6948.html
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External Links:
Mineral Dealers:
Localities for Fluorcaphite
Locality List




All localities listed without proper references should be considered as questionable.
Russia (TL) | |
| Pekov, I.V., Chukanov, N.V., Kononkova, N.N., Zubkova, N.V., Rabadanov, M.K., and Pushcharovsky, D.Y. (2008): Geology of Ore Deposits 50(8), 749-754.; Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow; Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow; Khomyakov, A. P., Nechelyustov, G. N., Sokolova, E., Bonaccorsi, E., Merlino, S., & Pasero, M. (2002). Megakalsilite, a new polymorph of KAlSiO4 from the Khibina alkaline massif, Kola peninsula, Russia: Mineral description and crystal structure. The Canadian Mineralogist, 40(3), 961-970. |
http://maurice.strahlen.org/kola/khibiny.htm | |
| N. V. Chukanov et al.: ZVMO 132(5):22-33 (2003); Pakhomovsky, Y. A., Ivanyuk, G. Y., & Yakovenchuk, V. N. (2014). Loparite-(Ce) in rocks of the Lovozero layered complex at Mt. Karnasurt and Mt. Kedykvyrpakhk. Geology of Ore Deposits, 56(8), 685-698. |
The Canadian Mineralogist Vol. 43, pp. 735-746 (2005) | |
Tajikistan | |
| I. Pekov data pers. comm. L. Horváth 2008 |
Koashva Open Pit, Koashva Mt, Khibiny Massif, Murmansk Oblast, Russia