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Fluorellestadite

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Formula:
Ca5(SiO4)1.5(SO4)1.5F
System:
Hexagonal
Colour:
Light rose-red, yellow
Hardness:
Name:
In allusion to its composition, being the fluorine-dominant analogue of hydroxylellestadite.

Classification of Fluorellestadite

Approved 1987
9.AH.25

9 : SILICATES (Germanates)
A : Nesosilicates
H : Nesosilicates with CO3, SO4, PO4, etc.
52.4.9.3

52 : NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O
4 : Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] and/or >[6] coordination
17.10.22

17 : Silicates Containing other Anions
10 : Silicates with sulphate, molybdate or tungstate
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Type Occurrence of Fluorellestadite

Year of Discovery:
1982

Physical Properties of Fluorellestadite

Colour:
Light rose-red, yellow
Hardness (Mohs):
Tenacity:
Very brittle
Cleavage:
Imperfect/Fair
On {0001}, imperfect.

Crystallography of Fluorellestadite

Crystal System:
Hexagonal
Cell Parameters:
a = 9.53Å, c = 6.91Å
Ratio:
a:c = 1 : 0.725
Unit Cell Volume:
V 543.49 ų (Calculated from Unit Cell)

Optical Data of Fluorellestadite

Type:
Uniaxial (-)
RI values:
nω = 1.655 nε = 1.650
Max Birefringence:
δ = 0.005
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
Moderate

Chemical Properties of Fluorellestadite

Formula:
Ca5(SiO4)1.5(SO4)1.5F
Essential elements:
All elements listed in formula:
Common Impurities:
Al,Fe,Mn,Mg,Na,K

Relationship of Fluorellestadite to other Species

Series:
Forms a series with Hydroxylellestadite (see here)
Other Members of Group:
HydroxylellestaditeCa5(SiO4)1.5(SO4)1.5(OH)
MattheddleitePb5(SiO4)1.5(SO4)1.5(Cl,OH)
9.AH.05Iimoriite-(Y)Y2[SiO4][CO3]
9.AH.10Tundrite-(Ce)Na2Ce2Ti(SiO4)(CO3)2O2
9.AH.10Tundrite-(Nd)Na2(Nd,Ce)2Ti(SiO4)(CO3)2O2
9.AH.15SpurriteCa5(SiO4)2(CO3)
9.AH.20TernesiteCa5(SiO4)2(SO4)
9.AH.25Britholite-(Ce)Ca2(Ce,Ca)3(SiO4,PO4)3(OH,F)
9.AH.25Britholite-(Y)Ca2(Y,Ca)3(SiO4,PO4)3(OH,F)
9.AH.25Ellestadite-(Cl)Ca10(SiO4)3(SO4)3Cl2
9.AH.25Fluorbritholite-(Ce)Ca2(Ce,Ca)3(SiO4,PO4)3(F,OH)
9.AH.25HydroxylellestaditeCa5(SiO4)1.5(SO4)1.5(OH)
9.AH.25MattheddleitePb5(SiO4)1.5(SO4)1.5(Cl,OH)
9.AH.25Tritomite-(Ce)(Ce,La,Y,Th)5(Si,B)3(O,OH,F)13
9.AH.25Tritomite-(Y)(Y,Ca,La,Fe)5(Si,B,Al)3(O,OH,F)13
9.AH.25Fluorcalciobritholite(Ca,Ce)5 (SiO4,PO4)3F
9.AH.25Fluorbritholite-(Y)Ca2(Y,Ca,Ln)3(SiO4,PO4)3(F,OH)
17.10.1NoseanNa8(Al6Si6O24)(SO4) · H2O
17.10.2PitiglianoiteNa6K2(Al6Si6O24)(SO4) · 2H2O
17.10.3Vishnevite(Na,K)8(Al6Si6O24)(SO4,CO3) · 2H2O
17.10.4Haüyne(Na,Ca)4-8(Al6Si6O24)(SO4,S,Cl)1-2
17.10.5Liottite(Na,K)16Ca8(Al6Si6O24)3(SO4)5Cl4
17.10.6Latiumite(Ca,K)4(Si,Al)5O11(SO4,CO3)
17.10.7Tuscanite(K(Ca,Na)6(Si,Al)10O22[SO4,CO3,(OH)2] · H2O
17.10.8MicrosommiteNa4K2Ca2(Al6Si6O24)(SO4)Cl2
17.10.9Delhayelite(Na,K)10Ca5Al6Si32O80(Cl2,F2,SO4)3 · 18H2O
17.10.10HydrodelhayeliteKCa2AlSi7O17(OH)2 · 6H2O
17.10.11Davyne(Na,K)6Ca2(Al6Si6O24)(Cl2,SO4)2
17.10.12Afghanite(Na,Ca,K)8(Al6Si6O24)(Cl2,SO4,CO3)3 · 0.5H2O
17.10.13Franzinite(Na,K)6Ca2(Al6Si6O24)(SO4)2 · 0.5H2O
17.10.14Giuseppettite(Na,K,Ca)7-8(Al6Si6O24)(SO4,Cl)1-2
17.10.15Sacrofanite(Na,K)98Ca20(Al6Si6O24)14(SO4)26Cl2 · 8H2O
17.10.16Chessexite(Na,K)4Ca2(Mg,Zn)3Al8(SO4)10(SiO4)2 · 40H2O
17.10.17InneliteNa2CaBa4Ti3(Si2O7)2(SO4)2O4
17.10.18ThaumasiteCa3(SO4)[Si(OH)6](CO3) · 12H2O
17.10.19Ellestadite
17.10.20Ellestadite-(Cl)Ca10(SiO4)3(SO4)3Cl2
17.10.21HydroxylellestaditeCa5(SiO4)1.5(SO4)1.5(OH)
17.10.23MattheddleitePb5(SiO4)1.5(SO4)1.5(Cl,OH)
17.10.24QueititePb4Zn2(SO4)(SiO4)(Si2O7)
17.10.25RoeblingitePb2Ca6Mn2+(Si3O9)2(SO4)2(OH)2 · 4H2O
17.10.26YoshimuraiteBa2Mn2Ti(Si2O7)(PO4)O(OH)
17.10.27KegelitePb8Al4(Si8O20)(SO4)2(CO3)4(OH)8
17.10.28Wenkite(Ba,K)4(Ca,Na)6[(SO4)3|(Si,Al)20O39(OH)2] · 0.5H2O
17.10.29MacquartiteCu2Pb7(CrO4)4(SiO4)2(OH)2
17.10.30WeliniteMn62+(W6+,Mg)2(SiO4)2(O,OH)6

Other Names for Fluorellestadite

Name in Other Languages:

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 Fluorellestadite

Reference List:
Eakle, A.S. & A.F. Rogers (1914) Wilkeite, a new mineral of the apatite group, and okenite, its alteration product, from southern California, American Journal of Science, 4th. Series: 37: 262-267 (as Wilkeite).

McConnell (1937) American Mineralogist: 22: 977.

Palache, C., Berman, H., & Frondel, C. (1951) The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged, 1124 pp.: 905 (as Wilkeite).

American Mineralogist (1989): 74: 502-503.

Internet Links for Fluorellestadite

Localities for Fluorellestadite

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.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
Canada
 
  • Québec
    • Laurentides
      • Deux-Montagnes RCM
        • Oka
GOLD, D.P., EBY, G.N. & VALLEÉ, M. (1986) Carbonatites, diatremes and ultra-alkaline rocks in the Oka area. Fieldtrip guidebook 21, GAC/MAC Meeting, Ottawa, 51p.
China
 
  • Hebei Province
    • Xingtai Prefecture
      • Xingtai Co.
Zhengmin Cao and Weijiong Zhu (1993): Acta Scientiarum Naturalium Universitatis Pekinensis 29(4)
France
 
  • Midi-Pyrénées
    • Aveyron
Eytier J.R. & Ch., Favreau G., Devouard B., Vigier J. (2004), Minéraux de pyrométamorphisme de Lapanouse-de Sévérac (Aveyron), Cahier des Micromonteurs, n°85, pp: 3-58
Germany
 
  • Rhineland-Palatinate
    • Eifel
      • Mayen
        • Ettringen
          • Bellerberg volcano
Hamm, H.M. (1985): Seltene Mineralparagenesen mit Ca2SiO4 und Reinhardbraunsit in Ca-reichen Xenolithen des Bellerberges, Laacher Vulkangebiet, Mitt. Österr. Mineral. Ges. 130, 63-75
  • Thuringia
    • Gera
      • Ronneburg U deposit
T. Witzke & F. Rüger: Lapis 1998(7/8), 26-64
Israel
 
  • Negev
Vapnik, Y., Sokol, E., Murashko M., Sharygin V. (2006): The enigma of Hatrurim. Mineralogical Almanac, 10, 69-77.
Japan
 
  • Honshu Island
    • Kanto Region
      • Saitama Prefecture
        • Chichibu City
          • Ohtaki-mura
            • Nakatsugawa
              • Chichibu mining district (Chichibu mine)
[var: Wilkeite] Yamada, S. (2004) Nihonsan-koubutsu Gojuon-hairetsu Sanchi-ichiranhyou (111 pp.)
Palestine
 
  • West Bank
    • Hatrurim Formation
Galuskina, I.O., Vapnik Ye., Lazic B., Armbruster T., Murashko M. and Galuskin E. Harmunite CaFe2O4: A new mineral from the Jabel Harmun, West Bank, Palestinian Autonomy, Israel. American Mineralogist, 99, 965–975.
Seryotkin Y.V., Sokol E.V. & Kokh S.N. 2012: Natural pseudowollastonite: Crystal structure, associated minerals, and geological context. Lithos, vol. 134-135, pp. 75-90; Seryotkin, Yu.V., Sokol, E.V., Kokh, S.N. (2012): Natural pseudowollastonite: Crystal structure, associated minerals, and geological context. Lithos, 134–135, 75-90.
Portugal
 
  • Guarda District
    • Sabugal
      • Bendada
Schnorrer-Köhler (1991), Mineral Occurrences.
Russia
 
  • Urals Region
    • Southern Urals
      • Chelyabinsk Oblast'
Cesnokov, B., M. Kotrly, and T. Nisanbajev (1998): Brennende Abraumhalden und Aufschlüsse im Tscheljabinsker Kohlenbecken - eine reiche Mineralienküche. Mineralien-Welt, 9 (3), 54-63 (in German).
Zateeva, S. N., Sokol, E. V., & Sharygin, V. V. (2007). Specificity of pyrometamorphic minerals of the ellestadite group. Geology of Ore Deposits, 49(8), 792-805.
Cesnokov, B., M. Kotrly, and T. Nisanbajev (1998): Brennende Abraumhalden und Aufschlüsse im Tscheljabinsker Kohlenbecken - eine reiche Mineralienküche. Mineralien-Welt, 9 (3), 54-63 (in German).
ZVMO (1987) 116/6, 743-746; Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
Slovakia
 
  • Banská Bystrica Region
    • Banská Štiavnica Co.
      • Vysoká
Koděra P., Uher P., Ozdín D., Kollárová V., Lexa J., 2009: Monticellit, clintonit a hydroxylellestadit-fluorellestadit: vzácne skarnové minerály na Cu-Au porfýrovo-skarnovom ložisku Vysoká – Zlatno (štiavnický stratovulkán). Mineralia Slovaca, 41, 2, 169-178.
USA
 
  • California
    • Mono Co.
      • White Mts
        • White Mountain Peak
Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 316.
    • Riverside Co.
      • Crestmore
[var: Wilkeite] Eakle, A.S. & A.F. Rogers (1914), Wilkeite, a new mineral of the apatite group, and okenite, its alteration product, from southern California, Am. Jour. Sci., 4th. Series: 37: 262-267.
          • Sky Blue Hill
Woodford, A.O., Crippen, R.A., and Garner, K.B. (1941) Section Across Commercial Quarry, Crestmore, California. American Mineralogist: 26: 368.
Woodford, A.O., Crippen, R.A., and Garner, K.B. (1941) Section Across Commercial Quarry, Crestmore, California. American Mineralogist: 26: 367-368.
Woodford, A.O., Crippen, R.A., and Garner, K.B. (1941) Section Across Commercial Quarry, Crestmore, California. American Mineralogist: 26: 352-381.
      • Jurupa Mts
        • Jurupa
Cooney, R.L. (1956), The mineralogy of the Jensen and Henshaw quarries near Riverside, California: Unpublished Master’s thesis, University of California at Los Angeles: 24, 39, 41; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 316; Devito, F. and Ordway, A. (1984), The Jensen Quarry, Riverside County, California. Mineralogical Record: 15(5): 273-290.
  • New York
    • Essex Co.
      • Keene
        • Cascade Mountain
Contrib. Mineral. Petrol. 74, 143-152 (1980)
Zambia
 
  • North-Western Province
    • Solwezi District
American Mineralogist: 59: 1139
Mineral and/or Locality  
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