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Tschörtnerite

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Tschörtnerit
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Tschörtnerit

Bildbreite: 1,1 mm, Fundort: Stbr. Caspar, Ettringer Bellerberg, Ettringen, Eifel, Deutschland
Copyright: Stephan Wolfsried
Contribution: Hg 2014-05-16
Locality: Ettringer Bellerberg (Stbr. Caspar) / Bellerberg / Ettringen / Mayen / Mayen-Koblenz-Kreis / Rheinland-Pfalz / Deutschland

Collectors Summary

Color blassblau
Lustre Glasglanz
Hardness (Mohs) 4.5
Cleavages no deutlich
Fracture muschelig
Crystal System kubisch, Fm3m

Chemism

Chem­ical formula

Ca4(K,Ca,Sr,Ba)3Cu3Al12Si12O48(OH)8·20H2O

Chem­ical com­po­si­tion

Aluminium, Barium, Calcium, Kupfer, Silicium, Strontium, Kalium, Sauerstoff, Wasserstoff

Unit weight: 2423.5636809 u; Number of atoms in the formula: 158

Info

Empirical formula:

Ca4(K0.55Ca0.3Sr0.1Ba0.05)3Cu3Al12Si12O48(OH)8·20H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

2.00

48

30.38

1.0079470

48.3814560
Oxygen

O

50.17

76

48.10

15.9994300

1,215.9566800
Aluminium

Al

13.36

12

7.59

26.9815382

323.7784584
Silicon

Si

13.91

12

7.59

28.0855300

337.0263600
Potassium

K

2.66

1.65

1.04

39.0983100

64.5122115
Calcium

Ca

8.10

4.9

3.10

40.0784000

196.3841600
Copper

Cu

7.87

3

1.90

63.5463000

190.6389000
Strontium

Sr

1.08

0.3

0.19

87.6210000

26.2863000
Barium

Ba

0.85

0.15

0.09

137.3277000

20.5991550

Strunz 9th edi­tion incl. updates

9.GF.40

9: Silikate (Germanate)
G: Gerüstsilikate (Tektosilikate) mit zeolithischem H2O; Familie der Zeolithe
F: [Leucit]-Typ-Gerüste
40:Tschörtnerit-Gruppe

Lapis Clas­sifica­tion

VIII/J.20-030

VIII: SILIKATE
J: Gerüstsilikate (mit Zeolithen)
20: Gerüstsilikate mit Zeolithstruktur

Clas­sifica­tion by Hölzel

9.FL.120

9: SILICATES
F: Tektosilicates
L: Zeolites with 6-Rings

Dana 8th edi­tion

77.01.02.09

77: Tektosilicates Tectosilicate Zeolite group
01: Tektosilicates Tectosilicate Zeolite group true zeolites
02: Chabazite and related species

IMA sta­tus

Anerkannt von der CNMNC

Min­eral sta­tus

anerkanntes Mineral

IMA Classification

IMA Clas­sifica­tion

 Zeolite group  ⇒ TSC zeolite structure group

Optical Properties

Color

blassblau

Diaphane­ity (Trans­parency)

transparent

Lus­tre

Glasglanz

max. Birefrin­gence

0.000

RI value α / ω / n

1.504

Ri mean

1.504

2V angle

Isotropisch

Dis­per­sion

nicht beobachtet

Crystallography

Crystal Sys­tem

kubisch

Class (H-M)

m3m

Space Group number

225

Space Group

Fm3m

Cell param­e­ters a (Å)

31.62

Cell param­e­ters b (Å)

-

Cell param­e­ters c (Å)

-

Cell param­e­ters a/b or c/a

1

Cell param­e­ters c/b

-

Cell param­e­ters α

90°

Cell param­e­ters β

90°

Cell param­e­ters γ

90°

Z

16

Volumne (ų)

31614.448

X-Ray Pow­der Diffrac­tion

18.3(100),
15.8(20),
9.13(10),
3.863(10),
3.471(10),
2.936(10),
2.887(10),
2.565(10)
XRD chart Tschörtnerite

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

VHN (Hard­ness Vick­ers)

350 (15g)

Density (g/cm³)

2.1 (gemessen) 2.1 (berechnet)

2.037 ( ρ calc. Mineralienatlas )

Cleav­ages

no deutlich

Frac­ture

muschelig

Tenac­ity

nicht erwähnt

(Co-)Type locality

(Co-)Type locality

Deutschland/Rheinland-Pfalz/Mayen-Koblenz-Kreis/Mayen/Ettringen/Bellerberg/Ettringer Bellerberg (Stbr. Caspar)

Preface

Author (Name, Year)

Krause & Bernhardt & Effenberger & Giester, 1997

References

American Mineralogist 83 (1998), 607

IMA group assignments

Other languages

German

Tschörtnerit

Spanish

Tschörtnerita

English

Tschörtnerite

French

Tschörtnerite

CNMNC (IMA)-Number

IMA 1995-051

CNMNC symbol

Symbol

Tht

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

German pages

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English pages

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German pages

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