Fluorellestadite (original) (raw)
A valid IMA mineral species
About FluorellestaditeHide
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Formula:
Ca5(SiO4)1.5(SO4)1.5F
Colour:
Blue to pale bluish, light rose-red, yellow
Name:
In allusion to its composition, being the fluorine-dominant analogue of hydroxylellestadite and chlorellestadite. Named in honor of Dr. Ruben B. Ellestad (1900-1993), American analytical chemist of Minneapolis, and fluorine in the chemical composition. First described as a new mineral from Kopeisk, South Urals, Russia by Chesnokov et al. 1987). The name was originally fluorellestadite, changed to ellestadite-(F) by the IMA in 2008, and back to fluorellestadite by the IMA in 2010.
Unique IdentifiersHide
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Long-form identifier:
mindat:1:1:1575:8
bf8079b3-d878-4e7f-9491-b0974be7d275
IMA Classification of FluorellestaditeHide
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Type description reference:
Classification of FluorellestaditeHide
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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
Mineral SymbolsHide
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As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.
| Symbol | Source | Reference |
|---|---|---|
| Fel | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
| Fel | The Canadian Mineralogist (2019) | The Canadian Mineralogist (2019) The Canadian Mineralogist list of symbols for rock- and ore-forming minerals (December 30, 2019). download |
Physical Properties of FluorellestaditeHide
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Transparency:
Transparent, Translucent
Colour:
Blue to pale bluish, light rose-red, yellow
Comment:
At the TL thin needles are colorless
Streak:
White streak with a weak bluish tint
Cleavage:
Imperfect/Fair
On {0001}, imperfect.
Density:
3.03(1) g/cm3 (Measured) 3.090 g/cm3 (Calculated)
Optical Data of FluorellestaditeHide
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RI values:
_n_ω = 1.655 _n_ε = 1.650
δ = 0.005
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Optical Extinction:
Parallel
Chemistry of FluorellestaditeHide
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Mindat Formula:
Ca5(SiO4)1.5(SO4)1.5F
Common Impurities:
Al,Fe,Mn,Mg,Na,K
Crystallography of FluorellestaditeHide
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Class (H-M):
6/m - Dipyramidal
Cell Parameters:
a = 9.53 Å, c = 6.91 Å
Unit Cell V:
543.49 ų (Calculated from Unit Cell)
Morphology:
Needles, as hexagonal prismatic, poorly terminated crystals up to 3 mm long, and as fine-grained aggregates.
Crystal StructureHide
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| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0015322 | Fluorellestadite | Pajares I, De la Torre A G, Martinez-Ramirez S, Puertas F, Blanco-Varela M T, Aranda M A G (2002) Quantitative analysis of mineralized white Portland clinkers: The structure of fluorellestadite Powder Diffraction 17 281-286 | 2002 | synthetic | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder DiffractionHide
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Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.46 Å | (30) |
| 3.13 Å | (20) |
| 2.86 Å | (100) |
| 2.80 Å | (40) |
| 2.76 Å | (60) |
| 2.66 Å | (30) |
| 2.57 Å | (5) |
| 2.33 Å | (5) |
| 2.30 Å | (30) |
| 2.16 Å | (10) |
| 2.07 Å | (5) |
| 1.97 Å | (60) |
| 1.91 Å | (20) |
| 1.86 Å | (60) |
| 1.83 Å | (30) |
| 1.81 Å | (30) |
| 1.78 Å | (30) |
| 1.73 Å | (30) |
| 1.66 Å | (10) |
| 1.56 Å | (5) |
| 1.55 Å | (5) |
| 1.51 Å | (5) |
| 1.49 Å | (20) |
| 1.47 Å | (30) |
| 1.45 Å | (20) |
Geological EnvironmentHide
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Type Occurrence of FluorellestaditeHide
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General Appearance of Type Material:
Needles, as hexagonal prismatic, poorly terminated crystals up to 3 mm long, and as fine-grained aggregates.
Place of Conservation of Type Material:
In the Fersman Mineralogical Museum, Moscow, Russia.
Geological Setting of Type Material:
In burned fragments of petrified wood in coal dumps
Associated Minerals at Type Locality:
Reference:
Chesnokov, B. V., Bazhenova, L. F, Bushmakin, A. F. (1987) Fluorellestadite Ca10[(SO4),(SiO4)]6F2 — a new mineral. Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva: 116 (6): 743-746.
Synonyms of FluorellestaditeHide
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Other Language Names for FluorellestaditeHide
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Varieties of FluorellestaditeHide
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| Wilkeite | Now a discredited mineral. A note on specimens labelled as wilkeite from the first recorded locality, Crestmore quarries, California, USA:The type material was described as pink hexagonal crystals in blue crystalline limestone from Riverside Co., Cali... |
|---|
Relationship of Fluorellestadite to other SpeciesHide
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Other Members of this group:
Common AssociatesHide
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Associated Minerals Based on Photo Data:
Related Minerals - Strunz-mindat GroupingHide
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| 9.AH. | Fluorbritholite-(Nd) | Ca2Nd3(SiO4)3F | Hex. 6/m : _P_63/m |
|---|---|---|---|
| 9.AH.05 | Iimoriite-(Y) | Y2[SiO4][CO3] | Tric. 1 : _P_1 |
| 9.AH.10 | Tundrite-(Ce) | Na2Ce2Ti(SiO4)(CO3)2O2 | Tric. 1 : _P_1 |
| 9.AH.10 | Tundrite-(Nd) | Na2(Nd,Ce)2Ti(SiO4)(CO3)2O2 | |
| 9.AH.15 | Spurrite | Ca5(SiO4)2(CO3) | Mon. 2/m : _P_21/b |
| 9.AH.15 | Galuskinite | Ca7(SiO4)3(CO3) | Mon. 2/m : _P_21/b |
| 9.AH.20 | Ternesite | Ca5(SiO4)2(SO4) | Orth. m m m _(_2/_m_2/_m_2/m ) : P n m a |
| 9.AH.20 | Silicocarnotite | Ca5[(SiO4)(PO4)](PO4) | Orth. m m m _(_2/_m_2/_m_2/m ) : P n m a |
| 9.AH.25 | Britholite-(Ce) | (Ce,Ca)5(SiO4)3OH | Hex. 6/m : _P_63/m |
| 9.AH.25 | Britholite-(Y) | (Y,Ca)5(SiO4)3OH | Hex. 6/m : _P_63/m |
| 9.AH.25 | Chlorellestadite | Ca5(SiO4)1.5(SO4)1.5Cl | Hex. 6/m : _P_63/m |
| 9.AH.25 | Fluorbritholite-(Ce) | (Ce,Ca)5(SiO4)3F | Hex. 6/m : _P_63/m |
| 9.AH.25 | Hydroxylellestadite | Ca5(SiO4)1.5(SO4)1.5(OH) | Hex. 6/m m m _(_6/_m_2/_m_2/m ) : _P_63/m c m |
| 9.AH.25 | Mattheddleite | Pb5(SiO4)1.5(SO4)1.5(Cl,OH) | Hex. 6/m : _P_63/m |
| 9.AH.25 | Tritomite-(Ce) | Ce5(SiO4,BO4)3(OH,O) | |
| 9.AH.25 | Tritomite-(Y) | Y5(SiO4,BO4)3(O,OH,F) | |
| 9.AH.25 | Fluorcalciobritholite | (Ca,REE)5(SiO4,PO4)3F | Hex. 6/m : _P_63/m |
| 9.AH.25 | Fluorbritholite-(Y) | (Y,Ca)5(SiO4)3F | Hex. 6/m : _P_63/m |
| 9.AH.25 | Britholite-(La) | Ca2(La,Ce,Ca)3(SiO4,PO4)3(OH,F) | |
| 9.AH.25 | Calciobritholite | (Ca,Y)5(SiO4,PO4)3(OH) | |
| 9.AH.35 | Nabimusaite | KCa12(SiO4)4(SO4)2O2F | Trig. 3_m_ _(_32/m ) : R_3_m |
| 9.AH.35 | Dargaite | BaCa12(SiO4)4(SO4)2O3 | Trig. 3_m_ : R_3_m |
| 9.AH.40 | Zadovite | BaCa6[(SiO4)(PO4)](PO4)2F | Trig. 3_m_ : R_3_m |
| 9.AH.40 | Gazeevite | BaCa6(SiO4)2(SO4)2O | Trig. 3_m_ _(_32/m ) : R_3_m |
| 9.AH.40 | Stracherite | BaCa6(SiO4)2[(PO4)(CO3)]2F | Trig. 3_m_ _(_32/m ) : R_3_m |
| 9.AH.45 | Flamite | Ca8-x(Na,K)x(SiO4)4-x(PO4)x | Orth. m _m_2 |
| 9.AH.50 | Byzantievite | Ba5(Ca,REE,Y)22(Ti,Nb)18(SiO4)4[(PO4),(SiO4)]4(BO3)9O22[(OH),F]43(H2O)1.5 | Trig. 3 : _R_3 |
| 9.AH.55 | Greenwoodite | (Ba,V3+O)2V3+9(Fe3+,Fe2+)2Si2O22 | Trig. 3_m_ _(_32/m ) : _P_3_m_1 |
| 9.AH.60 | Kihlmanite-(Ce) | Ce2TiO2(SiO4)(HCO3)2(H2O) | Tric. 1 : _P_1 |
| 9.AH.65 | Tsangpoite | Ca5(PO4)2(SiO4) | Hex. |
| 9.AH.70 | Enalite | (Th,REE,Al) [(PO4),(SiO4),(OH)] | Tet. |
Fluorescence of FluorellestaditeHide
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No luminescence in ultraviolet light (360 nm)
Other InformationHide
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Notes:
Soluble and weakly effervescent in HCl, leaving a silica residuum that retains the original form.
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 FluorellestaditeHide
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References for FluorellestaditeHide
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Reference List:
Pasero, Marco, Kampf, Anthony R., Ferraris, Cristiano, Pekov, Igor V., Rakovan, John, White, Timothy J. (2010) Nomenclature of the apatite supergroup minerals. European Journal of Mineralogy, 22 (2) 163-179 doi:10.1127/0935-1221/2010/0022-2022
Avdontceva, Margarita S., Zolotarev, Andrey A., Krivovichev, Sergey V., Krzhizhanovskaya, Maria G., Sokol, Ella V., Kokh, Svetlana N., Bocharov, Vladimir N., Rassomakhin, Mikhail A., Zolotarev, Anatoly A. (2021) Fluorellestadite from burned coal dumps: crystal structure refinement, vibrational spectroscopy data and thermal behavior. Mineralogy and Petrology, 115 (3) 271-281 doi:10.1007/s00710-021-00740-4
Localities for FluorellestaditeHide
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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
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- 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.