Fluorcalcioroméite
A valid IMA mineral species
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About Fluorcalcioroméite
Formula:
(Ca,Na,◻)2Sb5+2(O,OH)6F
Colour:
Yellow to orange
Lustre:
Vitreous, Resinous
Hardness:
5½
Specific Gravity:
5.113 (Calculated)
Crystal System:
Isometric
Member of:
Name:
The name was created during a 2010 reorganization of the pyrochlore supergroup, but it required a complete description in order to be approved as valid species. That description was published in 2013. The name indicates the chemical relationship to other roméite group species.
Unique Identifiers
Mindat ID:
40367
Long-form identifier:
mindat:1:1:40367:4
GUID
(UUID V4):
(UUID V4):
963b6af4-f08c-49b9-81d4-f4e4bdd267a7
IMA Classification of Fluorcalcioroméite
Classification of Fluorcalcioroméite
4.DH.20
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
D : Metal: Oxygen = 1:2 and similar
H : With large (+- medium-sized) cations; sheets of edge-sharing octahedra
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
D : Metal: Oxygen = 1:2 and similar
H : With large (+- medium-sized) cations; sheets of edge-sharing octahedra
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 |
|---|---|---|
| Fcrm | 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 Fluorcalcioroméite
Vitreous, Resinous
Transparency:
Translucent
Colour:
Yellow to orange
Streak:
White
Hardness:
5½ on Mohs scale
Comment:
∼5½
Tenacity:
Brittle
Cleavage:
None Observed
Fracture:
Conchoidal
Density:
5.113 g/cm3 (Calculated)
Comment:
Could not be measured due to lack of pure material.
Optical Data of Fluorcalcioroméite
Type:
Isotropic
RI values:
n = 1.826
Birefringence:
Isotropic minerals have no birefringence
Surface Relief:
Very High
Chemistry of Fluorcalcioroméite
Mindat Formula:
(Ca,Na,◻)2Sb5+2(O,OH)6F
Crystallography of Fluorcalcioroméite
Crystal System:
Isometric
Class (H-M):
m3m (4/m 3 2/m) - Hexoctahedral
Space Group:
Fd3m
Setting:
Fd3m
Cell Parameters:
a = 10.2987(8) Å
Unit Cell V:
1092.31 ų
Z:
8
Morphology:
Octahedra.
Twinning:
Untwinned
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 5.934 Å | (81) |
| 3.102 Å | (20) |
| 2.969 Å | (100) |
| 2.572 Å | (6) |
| 1.979 Å | (7) |
| 1.818 Å | (8) |
| 1.551 Å | (15) |
| 1.484 Å | (5) |
Comments:
Starlera mine, Ferrera, Switzerland. The data are from the type description.
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 7: Great Oxidation Event | <2.4 |
| 47d : [Arsenates, antimonates, selenates, bismuthinates] | |
| 47h : [Near-surface oxidized, dehydrated minerals] |
Type Occurrence of Fluorcalcioroméite
General Appearance of Type Material:
Euhedral octahedra from 0.1 to 1 mm in size.
Place of Conservation of Type Material:
Museo Regionale di Scienze Naturali, Sezione di Mineralogia, Petrografia e Geologia, Torino, Italy, number M/15925 (type).
The RRUFF project, number R120140 (cotype).
Museu de Geociências, Instituto de Geociências, Universidade de São Paulo, São Paulo, Brazil, number DR745 (cotype).
The RRUFF project, number R120140 (cotype).
Museu de Geociências, Instituto de Geociências, Universidade de São Paulo, São Paulo, Brazil, number DR745 (cotype).
Geological Setting of Type Material:
Dolomitic marbles.
Associated Minerals at Type Locality:
Synonyms of Fluorcalcioroméite
Other Language Names for Fluorcalcioroméite
Relationship of Fluorcalcioroméite to other Species
Member of:
Other Members of this group:
| Cuproroméite | Cu2Sb2(O,OH)7 | Iso. |
| Hydroxycalcioroméite | (Ca,Sb3+)2(Sb5+,Ti)2O6(OH) | Iso. m3m (4/m 3 2/m) : Fd3m |
| Hydroxyferroroméite | (Fe2+1.5◻0.5)Sb5+2O6(OH) | Iso. m3m (4/m 3 2/m) : Fd3m |
| Oxycalcioroméite | Ca2Sb2O6O | Iso. m3m (4/m 3 2/m) : Fd3m |
| Oxyplumboroméite | Pb2Sb2O6O | Iso. m3m (4/m 3 2/m) : Fd3m |
Forms a series with:
Common Associates
Associated Minerals Based on Photo Data:
| 6 photos of Fluorcalcioroméite associated with Baryte | BaSO4 |
| 4 photos of Fluorcalcioroméite associated with Oxyplumboroméite | Pb2Sb2O6O |
| 1 photo of Fluorcalcioroméite associated with Rhodochrosite | MnCO3 |
| 1 photo of Fluorcalcioroméite associated with Albite | Na(AlSi3O8) |
Related Minerals - Strunz-mindat Grouping
| 4.DH. | Fluornatropyrochlore | (Na,Pb,Ca,REE,U)2Nb2O6F |
| 4.DH. | Roméite Group | A2(Sb5+)2O6Z |
| 4.DH. | Hydroxykenomicrolite | (◻,Na,Sb3+)2Ta2O6(OH) |
| 4.DH. | Fluornatroroméite | (Na,Ca)2Sb2(O,OH)6F |
| 4.DH. | Oxyplumboroméite | Pb2Sb2O6O |
| 4.DH. | Cesiokenopyrochlore | ◻Nb2(O,OH)6(Cs,◻) |
| 4.DH. | Oxyyttrobetafite-(Y) | Y2Ti2O6O |
| 4.DH.05 | Brannerite | UTi2O6 |
| 4.DH.05 | Orthobrannerite | U4+U6+Ti4O12(OH)2 |
| 4.DH.05 | Thorutite | (Th,U,Ca)Ti2(O,OH)6 |
| 4.DH.10 | Kassite | CaTi2O4(OH)2 |
| 4.DH.10 | Lucasite-(Ce) | CeTi2(O,OH)6 |
| 4.DH.15 va | Alumotungstite | ◻2W2O6(H2O) |
| 4.DH.15 | Bismutomicrolite (of Hogarth 1977) | |
| 4.DH.15 | Hydroplumboelsmoreite | (Pb,◻)(W,Fe3+)2O6 · H2O |
| 4.DH.15 | Hydropyrochlore | (H2O,◻)2Nb2(O,OH)6(H2O) |
| 4.DH.15 | Plumbomicrolite (of Hogarth 1977) | |
| 4.DH.15 | Stibiomicrolite (of Groat et al.) | |
| 4.DH.15 | Strontiopyrochlore (of Hogarth 1977) | A2Nb2(O,OH)6Z |
| 4.DH.15 | Fluornatromicrolite | (Na1.5Bi0.5)Ta2O6F |
| 4.DH.15 | Bismutopyrochlore (of Chukanov et al.) | (Bi,Ca,U,Pb)2-xNb2(O,OH)6(OH) |
| 4.DH.15 | Hydrokenoelsmoreite | ◻2W2O6(H2O) |
| 4.DH.15 | Fluorcalciomicrolite | (Ca,Na)2(Ta,Nb)2O6F |
| 4.DH.15 | Oxycalciobetafite | Ca2(Ti,Nb)2O6O |
| 4.DH.15 va | Yttromicrolite (of Hogarth) | (Ca,Y3+,U,Na)2-x(Ta,Nb,Ti,Fe3+)2O7 |
| 4.DH.15 | Oxynatropyrochlore | (Na,Ca,U)2Nb2O6(O,OH) |
| 4.DH.15 | Hydroxycalciopyrochlore | (Ca,Na,U,◻)2(Nb,Ti)2O6(OH) |
| 4.DH.15 | Fluorcalciopyrochlore | (Ca,Na)2(Nb, Ti)2O6F |
| 4.DH.15 | Oxycalciopyrochlore | Ca2Nb2O6O |
| 4.DH.15 | Fluorstrontiopyrochlore | (Sr,◻)2Nb2(O,OH)6F |
| 4.DH.15 | Oxyplumbopyrochlore | Pb2Nb2O6O |
| 4.DH.15 | Kenoplumbopyrochlore | (Pb,◻)Nb2O6(◻,O) |
| 4.DH.15 | Oxyyttropyrochlore-(Y) | (Y,◻)2Nb2O6O |
| 4.DH.15 | Fluorkenopyrochlore | (◻,Sr,Ce,Ca,Na)2(Nb,Ti)2O6F |
| 4.DH.15 | Oxyuranobetafite | (U,Ca,◻)2(Ti,Nb)2O6O |
| 4.DH.15 | Oxycalciomicrolite | Ca2Ta2O6O |
| 4.DH.15 | Oxystannomicrolite | Sn2Ta2O6O |
| 4.DH.15 | Kenoplumbomicrolite | (Pb,◻)2Ta2O6(◻,OH,O) |
| 4.DH.15 | Oxystibiomicrolite | (Sb3+,Ca)2Ta2O6O |
| 4.DH.15 | Hydromicrolite | (H2O,◻)2Ta2(O,OH)6(H2O) |
| 4.DH.15 | Hydrokenomicrolite | (◻,H2O)2Ta2(O,OH)6(H2O) |
| 4.DH.15 | Hydroxymanganopyrochlore | (Mn2+,Th,Na,Ca,REE)2(Nb,Ti)2O6(OH) |
| 4.DH.15 | Hydroxycalciomicrolite | Ca1.5Ta2O6(OH) |
| 4.DH.15 | Fluorplumbopyrochlore | (Pb,Y,Th,U,Na,Ca)2-x(Nb,Ti)2O6F |
| 4.DH.15 | Hydroxyplumbopyrochlore | (Pb1.5◻0.5)Nb2O6(OH) |
| 4.DH.15 | Oxynatromicrolite | (Na,Ca,U)2(Ta,Nb)2O6(O,F) |
| 4.DH.15 | Fluorhydropyrochlore | |
| 4.DH.15 | Hydroxykenoelsmoreite | (◻,Pb)2(W,Fe3+,Al)2(O,OH)6(OH) |
| 4.DH.15 | Hydrokenopyrochlore | (◻,x)2Nb2O6(H2O,Cs) |
| 4.DH.15 | Hydroxykenopyrochlore | (◻,Ce,Ba)2(Nb,Ti)2O6(OH,F) |
| 4.DH.15 | Hydroxynatropyrochlore | (Na,Ca,Ce)2Nb2O6(OH) |
| 4.DH.15 | Hydroxynatromicrolite | (Na,Bi3+,◻)2Ta2O6(OH) |
| 4.DH.15 | Unnamed (Sb-analogue of Hydroxymanganopyrochlor) | (Mn,Ca,Y)2(Sb,Ti)2O6(OH) |
| 4.DH.15 | Oxybismutomicrolite | (Bi1.33◻0.67)Σ2Ta2O6O |
| 4.DH.20 | Bindheimite | Pb2Sb2O6O |
| 4.DH.20 | Hydroxycalcioroméite | (Ca,Sb3+)2(Sb5+,Ti)2O6(OH) |
| 4.DH.20 | Monimolite | Pb2Sb5+2O7 |
| 4.DH.20 | Cuproroméite | Cu2Sb2(O,OH)7 |
| 4.DH.20 | Stetefeldtite | Ag2Sb2(O,OH)7 |
| 4.DH.20 | Stibiconite | Sb3+Sb5+2O6(OH) |
| 4.DH.20 | Oxycalcioroméite | Ca2Sb2O6O |
| 4.DH.20 | Hydroxyferroroméite | (Fe2+1.5◻0.5)Sb5+2O6(OH) |
| 4.DH.25 | Rosiaite | PbSb5+2O6 |
| 4.DH.30 | Zirconolite | CaZrTi2O7 |
| 4.DH.30 | Laachite | (Ca,Mn)2Zr2Nb2TiFeO14 |
| 4.DH.30 | Nöggerathite-(Ce) | (Ce,Ca)2Zr2(Nb,Ti)(Ti,Nb)2Fe2+O14 |
| 4.DH.30 | Stefanweissite | (Ca,REE)2Zr2(Nb,Ti)(Ti,Nb)2Fe2+O14 |
| 4.DH.35 | Liandratite | U(Nb,Ta)2O8 |
| 4.DH.35 | Petscheckite | UFe(Nb,Ta)2O8 |
| 4.DH.40 | Ingersonite | Ca3Mn2+Sb5+4O14 |
| 4.DH.45 | Pittongite | Na0.22(W,Fe3+)(O,OH)3 · 0.44H2O |
| 4.DH.50 | Tazzoliite | Ba4-xNaxTi2Nb3SiO17[PO2(OH)2]x(OH)(1-2x) |
Fluorescence of Fluorcalcioroméite
Non-fluorescent under ultraviolet light.
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 Fluorcalcioroméite
mindat.org URL:
https://www.mindat.org/min-40367.html
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References for Fluorcalcioroméite
Reference List:
Atencio, D., Andrade, M. B., Christy, A. G., Giere, R., Kartashov, P. M. (2010) The pyrochlore supergroup of minerals: nomenclature. The Canadian Mineralogist, 48 (3) 673-698 doi:10.3749/canmin.48.3.673
Christy, A. G., Atencio, D. (2013) Clarification of status of species in the pyrochlore supergroup. Mineralogical Magazine, 77 (1) 13-20 doi:10.1180/minmag.2013.077.1.02
Localities for Fluorcalcioroméite
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.
Austria | |
| Kolitsch et al. (2021) |
| Kolitsch et al. (2019) |
| Kolitsch et al. (2018) |
| Kolitsch et al. (2021) |
Brazil | |
| identified by EDAX and SEM Image. See ... |
Italy | |
| Lopes et al. (2021) |
Poland | |
| Gołębiowska et al. (2021) |
| Gołębiowska et al. (2021) |
| Pieczka et al. (2018) |
Slovakia | |
| Uher et al. (1998) +1 other reference |
Spain | |
| Analysis made by César Menor Salván |
Sweden | |
| Welin (1968) |
Switzerland | |
| Roth et al. (2013) |
| Roth et al. (2013) | |
| Brugger et al. (1999) +3 other references |
| Roth et al. (2013) |
Turkey | |
| Powell et al. (2021) |
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Fianel, Ausserferrera, Ferrera, Viamala Region, Grisons, Switzerland