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Ellestadite group (Wilkeit)

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Ellestadit
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Ellestadit (SNr: A000960)

Grün-blaue Butzen mit deutlichem Glanz in Matrix eingewachsen., BB = 6,1 mm; Fundort: Stbr. Caspar, Ettringer Bellerberg, Ettringen, Eifel, Rheinland-Pfalz, Deutschland.

Collection: Lithothek der Münchener Micromounter
Copyright: Hannes Osterhammer
Contribution: Münchener Micromounter 2014-11-25
Locality: Ettringer Bellerberg (Stbr. Caspar) / Bellerberg / Ettringen / Mayen / Mayen-Koblenz-Kreis / Rheinland-Pfalz / Deutschland

Additional information / Summary

Gruppenname, Mischkristall der Ellestadit-Reihe (meist Fluorellestadit oder Hydroxylellestadit)

Chemism

Chem­ical formula

Ca5(SiO4,PO4,SO4)3(F,OH,Cl)

Chem­ical com­po­si­tion

Calcium, Chlor, Silicium, Fluor, Phosphor, Sauerstoff, Schwefel, Wasserstoff

Unit weight: 500.48172413 u; Number of atoms in the formula: 21.3

Info

Empirical formula:

Ca5((SiO4)0.6(PO4)0.3(SO4)0.1)3(F0.6(OH)0.3Cl0.1)

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

0.06

0.3

1.41

1.0079470

0.3023841

Oxygen

O

39.32

12.3

57.75

15.9994300

196.7929890

Fluorine

F

2.28

0.6

2.82

18.9984033

11.3990420

Silicon

Si

10.10

1.8

8.45

28.0855300

50.5539540

Phosphorus

P

5.57

0.9

4.23

30.9737612

27.8763851

Sulfur

S

1.92

0.3

1.41

32.0655000

9.6196500

Chlorine

Cl

0.71

0.1

0.47

35.4532000

3.5453200

Calcium

Ca

40.04

5

23.47

40.0784000

200.3920000

Anal­y­sis wt%

CaO : 52.69, SrO : 0.86, CO2 : 2.18, P2O5 : 15.90, SiO2 : 11.99, SO3 : 13.47, F : 0.43, Cl : 1.44, H2O : 0.65 (Ref: American Mineralogist 71)

Strunz 9th edi­tion incl. updates

9.AH.25

9: Silikate (Germanate)
A: Inselsilikate (Nesosilikate)
H: Insel(Neso)silikate mit CO3, SO4, PO4, etc.
25:Britholith-Gruppe

Clas­sifica­tion by Hölzel

8.BO.906

8: PHOSPHATES ARSENATES VANADATES
B: Phosphates (+Anions -Water)
O: Apatite Supergroup
9: Sulfate Silico Apatites Ellestadite-Group

IMA sta­tus

Mineralgruppe

Min­eral sta­tus

Reihe/Gruppe/Serie/Folge

IMA Classification

IMA Clas­sifica­tion

Apatite Supergroup

Optical Data Luminescence

Color SW-UV (254nm)

 

gelblich weiß

After­glow (Per­sistant Lumi­nes­cence)

keine Daten

Crystals 3D

Open larger view

References

Dana's System of Mineralogy, 7th edition, 2 (1951), 906

Pasero, M., Kampf, A. R., Ferraris, C., Pekov, I. V., Rakovan, J. and White, T. J. - Nomenclature of the apatite supergroup minerals. European Journal of Mineralogy 22 (2010), 163-179.

IMA group assignments

Related minerals "Strunz Classification" (9. Edition) [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

'Ellestadite group'

Ca5(SiO4,PO4,SO4)3(F,OH,Cl)

9.AH.25

Fluorbritholite-(Y)

(Y,Ca,Ln)5[(Si,P)O4]3F

hexagonal : 6/m : P63/m

9.AH.25

'Tritomite-(Y)'

(Y,Ca,La,Fe2+)5(Si,B,Al)3(O,OH,F)13

hexagonal : 6/m : P63/m

9.AH.25

Tritomite-(Ce)

Ce5(SiO4,BO4)3(OH,O)

hexagonal : 6/m : P63/m

9.AH.25

Britholite-(Y)

(Y,Ca)5(SiO4,PO4)3(OH,F)

monoklin : 2 : P21

9.AH.25

Fluorellestadite

Ca5(SiO4,PO4,SO4)3(F,OH,Cl)

hexagonal : 6/m : P63/m

9.AH.25

Britholite-(Ce)

Ca2(Ce,Ca)3(SiO4,PO4)3 (OH,F)

hexagonal : 6/m : P63/m

9.AH.25

Chlorellestadite

Ca5(SiO4)1.5(SO4)1.5Cl

hexagonal : 6/m : P63/m

9.AH.25

Hydroxylellestadite

Ca10(SiO4)3(SO4)3(OH,Cl,F)2

monoklin : 2, 2/m : P21, P21/m

9.AH.25

Fluorbritholite-(Ce)

(Ce,Ca)5(SiO4)3F

hexagonal : 6/m : P63/m

9.AH.25

Fluorcalciobritholite

(Ca,REE)5[(Si,P)O4]3F

hexagonal : 6/m : P63/m

9.AH.25

Related minerals "Hoelzel Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

Hydroxylellestadite

Ca10(SiO4)3(SO4)3(OH,Cl,F)2

monoklin : 2, 2/m : P21, P21/m

8.BO.900

Fluorellestadite

Ca5(SiO4,PO4,SO4)3(F,OH,Cl)

hexagonal : 6/m : P63/m

8.BO.903

Chlorellestadite

Ca5(SiO4)1.5(SO4)1.5Cl

hexagonal : 6/m : P63/m

8.BO.905

'Ellestadite group'

Ca5(SiO4,PO4,SO4)3(F,OH,Cl)

8.BO.906

Mattheddleite

Pb5[(Cl,OH)|(PO4)1.5|(SiO4)1.5]

hexagonal : 6/m : P63/m

8.BO.960

Alternative Name

Ellestadita

German

Silikatsulfatapatit

Wilkeit

Wilkeita

Wilkeite

Automatic Links to external internet sources (Responsibility is with the operator)

German pages

DeWikiPedia - search for: Ellestadit-Gruppe
Google-Bilder-Suche - search for: Ellestadit-Gruppe
Mineralogisch-Petrographisches-Institut Hamburg - search for: Ellestadit-Gruppe

English pages

Mindat - search for: Ellestadite group
Webmineral - search for:Ellestadite group
Handbook-of-Mineralogy - search for: Ellestadite group
RRUFF - Raman, XRD and other mineral data - search for: Ellestadite group
RRUFF - References and PDF downloads - search for: Ellestadite group
American-Mineralogist-Crystal-Structure-Database - search for: Ellestadite group
Athena - search for: Ellestadite group

Mineral Dealer

German pages

hausen - Mineralgroßhandel - search for: Ellestadit-Gruppe
Crystal-Treasure.com - search for: Ellestadit-Gruppe
Bosse - search for: Ellestadit-Gruppe

Locations with GPS information