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Chlorellestadite

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Chlorellestadit
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Chlorellestadit
Graugrüner Chlorellestadit vom Steinbruch Bellerberg, Ettringen, Eifel, Rheinland-Pfalz, Deutschland. Bildbreite: 4 mm.
Copyright: raritätenjäger; Contribution: raritätenjäger
Collection: raritätenjäger
Location: Deutschland/Rheinland-Pfalz/Mayen-Koblenz-Kreis/Vordereifel, Verbandsgemeinde/Ettringen/Bellerberg/Ettringer Bellerberg (Stbr. Caspar)
Mineral: Chlorellestadite
Image: 1301049586
Rating: 5 (votes: 1)
License: Usage for Mineralienatlas project only
Chlorellestadit

Graugrüner Chlorellestadit vom Steinbruch Bellerberg, Ettringen, Eifel, Rheinland-Pfalz, Deutschland. Bildbreite: 4 mm.
Collection: raritätenjäger
Copyright: raritätenjäger
Contribution: raritätenjäger 2011-03-25
Locality: Ettringer Bellerberg (Stbr. Caspar) / Bellerberg / Ettringen / Vordereifel, Verbandsgemeinde / Mayen-Koblenz-Kreis / Rheinland-Pfalz / Deutschland

Collectors Summary

Color blassrosa
Streak color weiß
Hardness (Mohs) 4.5
Cleavages undeutlich
Solubility +++ HCl
Crystal System hexagonal, P63/m

Chemism

Chemical formula

Ca5(SiO4)1.5(SO4)1.5Cl

Chemical composition

Calcium, Chlor, Silicium, Sauerstoff, Schwefel

Unit weight: 518.064905 u; Number of atoms in the formula: 21

Info

Empirical formula:

Ca5(SiO4)1.5(SO4)1.5Cl

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Oxygen

O

37.06

12

57.14

15.9994300

191.9931600
Silicon

Si

8.13

1.5

7.14

28.0855300

42.1282950
Sulfur

S

9.28

1.5

7.14

32.0655000

48.0982500
Chlorine

Cl

6.84

1

4.76

35.4532000

35.4532000
Calcium

Ca

38.68

5

23.81

40.0784000

200.3920000

Analysis wt%

CaO : 55.18, MgO : 0.47, CO2 : 0.61, P2O5 : 3.06, SO3 : 20.69, SiO2 : 17.31, Cl : 1.64, F : 0.57, H2O : 0.53 (Ref: American Mineralogist 37)

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

Lapis Classification

VIII/B.27-020

VIII: SILIKATE
B: Inselsilikate mit tetraederfremden Anionen
27: Kationen mit Koordinationszahlen zwischen [8] und [12]; Inselsilikate mit [SO4] 2--, [CrO4] 2- und [PO4] 3--Gruppen

Classification by Hölzel

8.BO.905

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

Dana 8th edition

52.04.09.05

52: Nesosilicates Nesosilicate Insular SiO4 Groups and O, OH, F, and H2O
04: Nesosilicates Nesosilicate Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] and/or > [6] coordination
09: Silicate apatites

IMA status

anerkannt - CNMNC Newsletter No. 37, June 2017

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

 Apatite Supergroup  ⇒ Ellestadite group

Optical Properties

Color

blassrosa

Streak color

weiß

max. Birefringence

0.005
Birefringence chart\! Chlorellestadite title=Birefringence chart Chlorellestadite

Michel-Levy Color Chart viewed according to the maximum birefringence (at 30μm). Mineral color is not taken into account. Click on the image to enlarge or change thickness.

RI value α / ω / n

1.655

RI value γ / ε

1.650

Ri mean

1.653

2V angle

Uniaxial (-)

Crystallography

Crystal System

hexagonal

Class (H-M)

6/m

Space Group number

176

Space Group

P63/m

Cell parameters a (Å)

9.6002(2)

Cell parameters b (Å)

-

Cell parameters c (Å)

6.8692(2)

Cell parameters a/b or c/a

0.716

Cell parameters c/b

-

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

120°

Z

2

Volume (ų)

548.274

X-Ray Powder Diffraction

3.435(38),
2.858(100),
2.793(90),
2.771(99),
2.648(21),
2.306(21),
1.967(41),
1.851(23)
XRD chart Chlorellestadite

Calculated from d-spacing and intensity at 0.1541838 nm (Cu)

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Hardness (Mohs)

4.5

Density (g/cm³)

3.068 (gemessen)

3.138 ( ρ calc. Mineralienatlas )

Cleavages

undeutlich

Instability

+++ HCl

(Co-)Type locality

(Co-)Type locality

Georgien/Südossetien/Größere Kaukasus Bergkette/Kel’sky vulkanisches Plateau/NW-Hang des Shadil Khokh Vulkans

Preface

Author (Name, Year)

Rouse & Dunn, 1982

References

American Mineralogist 67 (1982), 90

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

Środek, D.,Książek,M., Galuskina, I.O., Kusz, J., Dulski, M., Gazeev, V. and Galuskin, E. (2017) Chlorellestadite, IMA 2017-013. CNMNC Newsletter No. 37, June 2017, page 741; Mineralogical Magazine, 81, 737–742

IMA group assignments

Other languages

German

Chlorellestadit

Spanish

Chlorellestadita

French

Chlorellestadite

English

Chlorellestadite

Russian

Эллестадит-(Cl)

old name

Spanish

Clorellestadita

Alternative Name

German

Ellestadit-(Cl)

Spanish

Ellestadita-(Cl)

English

Ellestadite-(Cl)

Russian

Зллестадит-(Cl)

CNMNC (IMA)-Number

IMA 2017-013

CNMNC symbol

Symbol

Clel

Locations with GPS information

IDs

GUSID (Global unique identifier short form) M8Hak33AAU6HxkriM9_OoQ
GUID (Global unique identifier) 93DAC133-C07D-4E01-87C6-4AE233DFCEA1
Database ID 726