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Faizievite

Pictures (1 Images total)

Faizievit
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Faizievit
farblose, plattige Aggregate von Faizievit, Dara-i-Pioz Gletscher, Tien Shan, Tadschikistan; BB ~ 2 mm, analysiert
Copyright: MinTreasure.com (Carsten Slotta); Contribution: openpit
Location: Tadschikistan/Republik-unterstellte Gebiete (Nohijahoi tobei Dschumhurij)/Dara-i-Pioz (Darai-Pioz)
Mineral: Faizievite
Image: 1591296519
License: Usage for Mineralienatlas project only
Faizievit

farblose, plattige Aggregate von Faizievit, Dara-i-Pioz Gletscher, Tien Shan, Tadschikistan; BB 2 mm, analysiert

Copyright: MinTreasure.com (Carsten Slotta)
Contribution: openpit 2020-06-04
Locality: Dara-i-Pioz (Darai-Pioz) / Republik-unterstellte Gebiete (Nohijahoi tobei Dschumhurij) / Tadschikistan

Collectors Summary

Color farblos
Lustre starker Glasglanz
Hardness (Mohs) 4 - 4.5
Solubility - HCl 1:1
Crystal System triklin, P1
Morphology Das Mineral kommt in Form von tafelig-plattigen Körnern ohne Vizinalformen bis zu 0,3 cm Länge und 0,2 mm Dicke, die eng mit Baratovit und Fluorit in Quarz-Pektolith-Aggregaten verwachsen sind vor.

Chemism

Chemical formula

Li6K2Na(Ca6Na)Ti4(Si6O18)2(Si12O30)F2

Chemical composition

Calcium, Lithium, Natrium, Silicium, Titan, Fluor, Kalium, Sauerstoff

Unit weight: 2365.7740669 u; Number of atoms in the formula: 112

Info

Empirical formula:

Li6K2Na(Ca6Na)Ti4(Si6O18)2(Si12O30)F2

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Lithium

Li

1.76

6

5.36

6.9412000

41.6472000

Oxygen

O

44.63

66

58.93

15.9994300

1,055.9623800

Fluorine

F

1.61

2

1.79

18.9984033

37.9968065

Sodium

Na

1.94

2

1.79

22.9897702

45.9795404

Silicon

Si

28.49

24

21.43

28.0855300

674.0527200

Potassium

K

3.31

2

1.79

39.0983100

78.1966200

Calcium

Ca

10.16

6

5.36

40.0784000

240.4704000

Titanium

Ti

8.09

4

3.57

47.8671000

191.4684000

Analysis wt%

SiO2 : 60.65, TiO2 : 13.44, CaO : 14.52, SrO : 0.72, Li2O : 3.76, Na2O : 1.99, K2O : 3.93, F : 1.33 (Ref: New Data on Minerals, (Monatshefte) 2007)

Strunz 9th edition incl. updates

9.CJ.

9: Silikate (Germanate)
C: Ringsilikate (Cyclosilikate)
J: ~[Si6O18]12- sechser-Einfachringe, ohne inselartig, komplexe [Anionen]

Lapis Classification

VIII/E.22-170

VIII: SILIKATE
E: Ringsilikate
22: Doppelte Sechserringe [Si12O30] 12-; Milarit/Osumilith-Gruppe

Classification by Hölzel

9.CF.900

9: SILICATES
C: Cyclosilicates
F: ~[Si12O30]12--Rings Milarite-Group
9: With two or more Rings (without Eudialytes)

Mineral status

anerkanntes Mineral

Optical Properties

Color

farblos

Diaphaneity (Transparency)

transparent

Lustre

starker Glasglanz

max. Birefringence

0.006

Birefringence chart\! Faizievite title=Birefringence chart Faizievite

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

1.651

RI value β

1.655

RI value γ / ε

1.657

Ri mean

1.654

2V angle

Biaxial (+) 72°

Optical Data Luminescence

Luminescence

Im kurzwelligen UV-Licht hellweiße Lumineszenz.

Color SW-UV (254nm)

 

bläulich weiß

SW-UV Intensity

stark

Afterglow (Persistant Luminescence)

keine Daten

Crystallography

Crystal System

triklin

Class (H-M)

1

Space Group number

2

Space Group

P1

Cell parameters a (Å)

9.816

Cell parameters b (Å)

9.825

Cell parameters c (Å)

17.309

Cell parameters a/b or c/a

0.999

Cell parameters c/b

1.762

Cell parameters α

99.22

Cell parameters β

94.67

Cell parameters γ

119.83

Z

1

Volume (ų)

1403.902

X-Ray Powder Diffraction

4.25(60), 3.35(100), 3.14(20), 3.06(90), 2.885(55), 2.870(10), 1.868(17), 1.848(40)

XRD chart Faizievite

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

Morphology

Das Mineral kommt in Form von tafelig-plattigen Körnern ohne Vizinalformen bis zu 0,3 cm Länge und 0,2 mm Dicke, die eng mit Baratovit und Fluorit in Quarz-Pektolith-Aggregaten verwachsen sind vor.

Crystal Structure 3D

Open larger view

Physical Properties

Hardness (Mohs)

4 - 4.5

VHN (Hardness Vickers)

445 (50g)

Density (g/cm³)

2.83 (berechnet)

2.798 ( ρ calc. Mineralienatlas )

Tenacity

spröde

Instability

- HCl 1:1

Chemical Properties and Tests

Keine Reaktion in 1:1 verd. Salzsäure.

Preface

Name from

Professor für Mineralogie Abdulkhak Radzhabovitsch Faiziev (Tadschikistan)

References

Mineralien Welt 03/09, Steffen Jahn, Neue Mineralien

Other languages

German

Faizievit

Spanish

Faizievita

English

Faizievite

Russian

Файзиевит

Simplified Chinese

氟硅钛钙锂石

CNMNC (IMA)-Number

IMA 2006-037

CNMNC symbol

Symbol

Fai

Locations with GPS information

IDs

GUSID (Global unique identifier short form) f-leMB5ACkmVQrbDL7RGbA
GUID (Global unique identifier) 305EE97F-401E-490A-9542-B6C32FB4466C
Database ID 4407