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Telyushenkoite

Collectors Summary

Color farblos bis weiß
Streak color weiß
Lustre Glasglanz
Hardness (Mohs) 6
Cleavages deutlich
Crystal System trigonal, P3m1
Morphology eckige Körner bis 2 cm Größe

Chemism

Chem­ical formula

(Cs,Na,K)Na6[F2|Be2Al3Si15O39]

Chem­ical com­po­si­tion

Aluminium, Beryllium, Cäsium, Natrium, Silicium, Fluor, Kalium, Sauerstoff

Unit weight: 1410.71516016 u; Number of atoms in the formula: 68

Info

Empirical formula:

(Cs0.6Na0.3K0.1)Na6[F2Be2Al3Si15O39]

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Beryllium

Be

1.28

2

2.94

9.0121823

18.0243646

Oxygen

O

44.23

39

57.35

15.9994300

623.9777700

Fluorine

F

2.69

2

2.94

18.9984033

37.9968065

Sodium

Na

10.27

6.3

9.26

22.9897702

144.8355523

Aluminium

Al

5.74

3

4.41

26.9815382

80.9446146

Silicon

Si

29.86

15

22.06

28.0855300

421.2829500

Potassium

K

0.28

0.1

0.15

39.0983100

3.9098310

Caesium

Cs

5.65

0.6

0.88

132.9054520

79.7432712

Anal­y­sis wt%

SiO2 : 64.32, Al2O3 : 7.26, ZnO : 1.71, BeO : 3.46, Na2O : 13.53, K2O : 0.47, Cs2O : 7.25, F : 2.84 (Ref: Canadian Mineralogist 2002)

Strunz 9th edi­tion incl. updates

9.EH.25

9: Silikate (Germanate)
E: Schichtsilikate (Phyllosilikate)
H: Übergangsstrukturen zwischen Schichtsilikaten und anderen Silikaten
25:Leifit-Gruppe

Lapis Clas­sifica­tion

VIII/J.10-020

VIII: SILIKATE
J: Gerüstsilikate (mit Zeolithen)
10: Mit tetraederfremden Anionen

Clas­sifica­tion by Hölzel

9.FJ.330

9: SILICATES
F: Tektosilicates
J: Singly connected 4-Ring Chains

Dana 8th edi­tion

78.07.10.02

78: Unclassified Silicate Minerals
07: Unclassified silicates wholly unclassified silicates

IMA sta­tus

Anerkannt von der CNMNC

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

farblos bis weiß

Streak color

weiß

Lus­tre

Glasglanz

max. Birefrin­gence

0.005

Birefringence chart\! Telyushenkoite title=Birefringence chart Telyushenkoite

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

1.526

RI value γ / ε

1.531

Ri mean

1.528

2V angle

Uniaxial (+)

Optical Data Luminescence

Lumi­nes­cence

matte lilafarbene Fluoreszenz im kurzwelligen UV-Licht

Color SW-UV (254nm)

 

violett

SW-UV Intensity

sehr schwach

After­glow (Per­sistant Lumi­nes­cence)

keine Daten

Crystallography

Crystal Sys­tem

trigonal

Class (H-M)

3m

Space Group number

164

Space Group

P3m1

Cell param­e­ters a (Å)

14.377

Cell param­e­ters b (Å)

-

Cell param­e­ters c (Å)

4.879

Cell param­e­ters a/b or c/a

0.339

Cell param­e­ters c/b

-

Z

1

Volumne (ų)

873.369

X-Ray Pow­der Diffrac­tion

6.226(30),
4.149(50),
3.456(40),
3.382(70),
3.162(100),
3.113(40),
2.465(30),
2.396(20)

XRD chart Telyushenkoite

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

Morphol­ogy

eckige Körner bis 2 cm Größe

Crystal Structure 3D

Open larger view

Physical Properties

Hard­ness (Mohs)

6

VHN (Hard­ness Vick­ers)

714 (100g)

Density (g/cm³)

2.73

2.682 ( ρ calc. Mineralienatlas )

Cleav­ages

deutlich

Preface

Occurrences

Den höchst seltenen Telyushenkoit kennt man bisher nur von der Gletschermoräne Dara-i-Pioz, Tadshikistau

Asso­cia­tions

ReedmergneritMikroklin, Pektolith, Kentbrooksit, Polylithionit, Albfit
Verwachsungen mit Hyalotekit, Shibkovit, Nordit-(Ce), Leukophan

Author (Name, Year)

Sokolova & Huminicki & Hawthorne & Agakhanov & Pautov & Grew, 2002

Addi­tional Informa­tion

Das neue Caesium-Beryllosilikat mit Gerüststruktur ist das Cs-Analogon zu Leifit

References

New Data on Minerals 38 (2003), 5

Other languages

German

Telyushenkoit

English

Telyushenkoite

French

Telyushenkoite

Spanish

Telyushenkoíta

Russian

Телюшенкоит

Traditional Chinese

氟鈹矽銫鈉石

Simplified Chinese

氟铍硅铯钠石

CNMNC (IMA)-Number

IMA 2001-012

CNMNC symbol

Symbol

Tys

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

German pages

DeWikiPedia - search for: Telyushenkoit
Google-Bilder-Suche - search for: Telyushenkoit
Mineralienatlas.de (Forum) - search for: Telyushenkoit

English pages

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Handbook-of-Mineralogy - search for: Telyushenkoite
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RRUFF - References and PDF downloads - search for: Telyushenkoite
American-Mineralogist-Crystal-Structure-Database - search for: Telyushenkoite
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Russian pages

Webmineral.ru - search for: Телюшенкоит

Mineral Dealer

German pages

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Crystal-Treasure.com - search for: Telyushenkoit
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Locations with GPS information