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Ellestadite Mineral Data
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General Ellestadite Information
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 Chemical Formula: |
Ca5(SiO4,PO4,SO4)3(F,OH,Cl) |
| Composition: |
Molecular Weight = 500.48 gm |
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Calcium 40.04 % Ca 56.02 % CaO |
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Silicon 10.10 % Si 21.61 % SiO2 |
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Phosphorus 5.57 % P 12.76 % P2O5 |
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Hydrogen 0.06 % H 0.54 % H2O |
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Sulfur 1.92 % S 4.80 % SO3 |
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Chlorine 0.71 % Cl 0.71 % Cl |
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- %
Cl -0.16 % -O=Cl2 |
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Oxygen 39.32 % O |
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Fluorine 2.28 % F 2.28 % F |
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- %
F -0.96 % -O=F2 |
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______ ______ |
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100.00 % 97.60 % = TOTAL OXIDE |
| Empirical Formula: |
Ca5(SiO4)1.8(PO4)0.9(SO4)0.3F0.6(OH)0.3Cl0.1 |
| Environment: |
Metamorphosed limestone. Group name for hydroxylellestadite - chlorellestadite series. |
| IMA Status: |
Not Approved IMA |
| Locality: |
Crestmore quarry, 5 miles NW of Riverside, Riverside Co. California. Link to MinDat.org Location Data. |
| Name Origin: |
Named for Reuben B. Ellestad (1900-1993), American analytical chemist of Minneapolis, Minnesota, USA. |
| Synonym: |
ICSD 39775 |
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PDF 25-173 |
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Wilkeite |
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Ellestadite Image |
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Images:
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Ellestadite
Comments: Honey yellow hexagonal dipyramids of ellestadite in light blue marble matrix.
Location: Crestmore Quarry, Riverside County, California, USA.
Scale: 6 x 7.7 cm.
© John Veevaert |
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Ellestadite Crystallography
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| Crystal System: |
Hexagonal - Dipyramidal H-M Symbol (6/m) Space Group: P 63/m |
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Optical Properties of Ellestadite
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| Optical Data: |
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Calculated Properties of Ellestadite
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| Fermion Index: |
Fermion Index = 0.0055907355
Boson Index = 0.9944092645 |
| Photoelectric: |
PEEllestadite = 5.75 barns/electron
U=PEEllestadite x rElectron Density= . barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Ellestadite is Not Radioactive |
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Ellestadite Classification
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| Dana Class: |
52.04.09.00 (52)Nesosilicate Insular SiO4 Groups and O, OH, F, and H2O |
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(52.04)with cations in [6] and/or > [6] coordination |
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(52.04.09)Silicate apatites |
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52.04.09.00 Ellestadite* Ca5(SiO4,PO4,SO4)3(F,OH,Cl) P 63/m 6/m |
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52.04.09.01 Britholite-(Ce) (Ce,Ca,Th,La,Nd)5(SiO4,PO4)3(OH,F) P 63/m 6/m |
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52.04.09.02 Britholite-(Y) (Y,Ca)5(SiO4,PO4)3(OH,F) P 63/m 6/m |
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52.04.09.03 Ellestadite-(F) Ca5(SiO4,PO4,SO4)3(F,OH,Cl) P 63/m 6/m |
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52.04.09.04 Ellestadite-(OH) Ca5(SiO4,SO4)3(OH,Cl,F) P 63/m 6/m |
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52.04.09.05 Ellestadite-(Cl) Ca5(SiO4,PO4,SO4)3(Cl,OH,F) P 63/m 6/m |
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52.04.09.06 Mattheddleite Pb20(SiO4)7(SO4)4Cl4 P 63/m 6/m |
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52.04.09.07 Karnasurtite-(Ce) (Ce,La,Th)(Ti,Nb)(Al,Fe)(Si,P)2O7(OH)4•3(H2O)(?) Unk. Hex |
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52.04.09.08 Fluorbritholite-(Ce) (Ca,Ce,La,Na)5(SiO4,PO4)3(OH,F) P 63/m 6/m |
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52.04.09.09 Fluorcalciobritholite! (Ca,REE)5[(Si,P)O4]3F P 63/m 6/m |
| Strunz Class: |
09.AH.25 09 - SILICATES (Germanates) |
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09.A - Nesosilicates |
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09.AH -Nesosilicates with CO3, SO4, PO4, etc. |
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09.AH.25 Britholite-(Ce) (Ce,Ca,Th,La,Nd)5(SiO4,PO4)3(OH,F) P 63/m 6/m |
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09.AH.25 Britholite-(Y) (Y,Ca)5(SiO4,PO4)3(OH,F) P 63/m 6/m |
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09.AH.25 Ellestadite-(Cl) Ca5(SiO4,PO4,SO4)3(Cl,OH,F) P 63/m 6/m |
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09.AH.25 Fluorbritholite-(Ce) (Ca,Ce,La,Na)5(SiO4,PO4)3(OH,F) P 63/m 6/m |
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09.AH.25 Ellestadite-(F) Ca5(SiO4,PO4,SO4)3(F,OH,Cl) P 63/m 6/m |
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09.AH.25 Ellestadite* Ca5(SiO4,PO4,SO4)3(F,OH,Cl) P 63/m 6/m |
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09.AH.25 Ellestadite-(OH) Ca5(SiO4,SO4)3(OH,Cl,F) P 63/m 6/m |
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09.AH.25 Fluorcalciobritholite! (Ca,REE)5[(Si,P)O4]3F P 63/m 6/m |
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Other Ellestadite Information
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| See Also: |
Links to other databases for Ellestadite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info
11 - WWW-MINCRYST
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Ellestadite
Ca5(SiO4,PO4,SO4)3(F,OH,Cl)
Dana No: 52.04.09.00 Strunz No: 09.AH.25
Locality:
Notes:
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