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Fluorcalcioroméite

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About FluorcalcioroméiteHide

Formula:
(Ca,Na,◻)2Sb5+2(O,OH)6F
Colour:
Yellow to orange
Lustre:
Vitreous, Resinous
Hardness:
Specific Gravity:
5.113 (Calculated)
Crystal System:
Isometric
Unique combination of elements.


Classification of FluorcalcioroméiteHide

Approved
Approval Year:
2012
First Published:
1999

Physical Properties of FluorcalcioroméiteHide

Vitreous, Resinous
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)

Optical Data of FluorcalcioroméiteHide

Type:
Isotropic
RI values:
n = 1.826
Birefringence:
Isotropic minerals have no birefringence
Surface Relief:
Very High

Chemical Properties of FluorcalcioroméiteHide

Formula:
(Ca,Na,◻)2Sb5+2(O,OH)6F
IMA Formula:
(Ca,Na)2Sb5+2O6F

Crystallography of FluorcalcioroméiteHide

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

Type Occurrence of FluorcalcioroméiteHide

General Appearance of Type Material:
Euhedral octahedra from 0.1 to 1 mm in size
Place of Conservation of Type Material:
Type material is deposited in the collections of the Museo Regionale Di Scienze Naturali, Sezione di Mineralogia, Petrografia e Geologia, Torino, Italy, registration number M/15925; a cotype sample is also deposited in the RRUFF project, registration n

Synonyms of FluorcalcioroméiteHide

Other Language Names for FluorcalcioroméiteHide

Relationship of Fluorcalcioroméite to other SpeciesHide

Other Members of this group:
CuproroméiteCu2Sb2(O,OH)7Iso.
Fluornatroroméite(Na,Ca)2Sb2(O,OH)6F
Hydroxycalcioroméite(Ca,Sb3+)2(Sb5+,Ti)2O6(OH)Iso. m3m (4/m 3 2/m) : Fd3m
Hydroxyferroroméite(Fe2+1.50.5)Sb5+2O6(OH)Iso. m3m (4/m 3 2/m) : Fd3m
OxycalcioroméiteCa2Sb2O6OIso. m3m (4/m 3 2/m) : Fd3m
OxyplumboroméitePb2Sb2O6OIso. m3m (4/m 3 2/m) : Fd3m
Roméite
Forms a series with:

Common AssociatesHide

BrauniteMn2+Mn3+6(SiO4)O8
CalciteCaCO3
HematiteFe2O3
QuartzSiO2
WallkilldelliteCa2Mn2+3(AsO4)2(OH)4 · 9H2O

Fluorescence of FluorcalcioroméiteHide

Non-fluorescent under ultraviolet light

Other InformationHide

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 FluorcalcioroméiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Brugger, J. and Gieré, R. (1999) As,Sb,Be and Ce enrichment in minerals from a metamorphosed Fe-Mn-deposit, Val Ferrera, Eastern Swiss Alps. Canadian Mineralogist: 37: 37-52. [as roméite]
Atencio, D., Andrade, M.B., Christy, A.G., Gieré, R., and Kartashov, P.M. (2010) The pyrochlore supergroup of minerals: nomenclature. The Canadian Mineralogist: 48: 673-698.
Christy, A.G. and Atencio, D. (2013) Clarification of status of species in the pyrochlore supergroup. Mineralogical Magazine: 77: 13-20.
Atencio, D., Ciriotti, M.E., and Andrade, M.B. (2013) Fluorcalcioroméite, IMA 2012-093. CNMNC Newsletter No. 16, August 2013, page 2698. Mineralogical Magazine: 77: 2695-2709.
Atencio, D., Ciriotti, M.E., and Andrade, M.B. (2013) Fluorcalcioroméite, (Ca,Na)2Sb5+2(O,OH)6F, a new roméite-group mineral from Starlera mine, Ferrera, Grischun, Switzerland: description and crystal structure. Mineralogical Magazine: 77: 467-473.

Internet Links for FluorcalcioroméiteHide

Localities for FluorcalcioroméiteHide

ⓘ - Click for 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Austria
 
  • Tyrol
    • North Tyrol
      • Sill valley (Wipp valley)
        • Obernberg valley
Kolitsch, U., Schachinger, T. & Auer, C. (2018): 2076) Aegirin, Aegirin-Augit, Albit, Baddeleyit, Baryt, Brandtit(?), Braunit, Calcit, Canosioit, Clinosuenoit (ehemals „Manganocummingtonit“), Coelestin, Diaspor, Dolomit, Fluorapatit (As-haltig), Fluorcalcioroméit, Gamagarit, Hämatit, Hausmannit, Hjalmarit, Hollandit, Hydroxycalcioroméit, Klinochlor, Kutnohorit, Mischkristalle Manganiandrosit-(La) - Manganiakasakait-(La), Nambulit, Phlogopit, Piemontit, Pyrobelonit, Sb-haltiger Pyrophanit, Quarz, Ranciéit(?), Rhodochrosit, Rhodonit, Richterit, Rutil, Spessartin, Talk, Thorit, Tremolit, Tilasit, Titanit, Tokyoit, Wakefieldit-(Ce), Wakefieldit-(Y), Zirkon, das Sb-Analogon von Hydroxymanganopyrochlor und unbenanntes LaAsO4 vom Obernberger Tribulaun, Nordtirol - ein erster Bericht über mineralogisch komplexe, linsenförmige metamorphe Manganvererzungen. Pp. 206-213 in Walter, F. et al. (2018): Neue Mineralfunde aus Österreich LXVII. Carinthia II, 208./128., 185-254.
Slovakia
 
  • Banská Bystrica Region
    • Banská Bystrica Co.
      • Brusno
Uher, P., Černý, P., Chapman, R., Hátar, J. & Miko, O. (1998) Evolution of Nb,Ta-oxide minerals in the Prasiva granitic pegmatites, Slovakia II. External hydrothermal Pb, Sb overprint. Canadian Mineralogist: 36: 535-545; Atencio, D., Andrade, M.B., Christy, A.G., Gieré, R., Kartashov, P.M. (2010) The pyrochlore supergroup of minerals: nomenclature. The Canadian Mineralogist: 48: 673-698
Spain
 
  • Andalusia
    • Almería
      • Cuevas del Almanzora (Cuevas de Vera)
        • Sierra Almagrera
          • Las Herrerías
            • Berja Mines (Grupo minero Berja)
Analysis made by César Menor Salván
Sweden
 
  • Värmland
    • Filipstad
Welin, E. (1968): Notes on the mineralogy of Sweden 6. X-ray powder diffraction data for minerals from Långban and related mineral deposits of central Sweden. Arkiv för Mineralogi och Geologi 4, 499-541. [as roméite]
Switzerland
 
  • Grischun (Grisons; Graubünden)
    • Hinterrhein Valley
      • Ferrera Valley
        • Ausserferrera
Roth, P. & Meisser, N. (2013): Die seltenen Mineralien der Bündner Manganvorkommen. Schweizer Strahler 47 (3), 8-21 (in German and French).
Roth, P. & Meisser, N. (2013): Die seltenen Mineralien der Bündner Manganvorkommen. Schweizer Strahler 47 (3), 8-21 (in German and French).
        • Starlera Valley
Brugger, J. and Giere, R. (1999) As,Sb,Be and Ce enrichment in minerals from a metamorphosed Fe-Mn-deposit, Val Ferrera, Eastern Swiss Alps. Canadian Mineralogist: 37: 37-52.; Roth, P. & Meisser, N. (2013): Die seltenen Mineralien der Bündner Manganvorkommen. Schweizer Strahler 47 (3), 8-21 (in German and French).; Pavel M. Kartashov analytical data (2013); Atencio, D., Ciriotti, M. E. & Andrade, M. B. (2013): Fluorcalcioroméite, (Ca,Na)2Sb5+2(O,OH)6F, a new roméite-group mineral from Starlera mine, Ferrera, Grischun, Switzerland: description and crystal structure. Mineralogical Magazine, 77, 467-473.
      • Rheinwald
        • Splügen
Roth, P. & Meisser, N. (2013): Die seltenen Mineralien der Bündner Manganvorkommen. Schweizer Strahler 47 (3), 8-21 (in German and French).
Mineral and/or Locality  
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