https://www.edelsteine-neuburg.de
https://www.mineraliengrosshandel.com
https://www.mineral-bosse.de
https://www.mineralbox.biz
'._('einklappen').'
 

Natrotitanite (Natrotitanit)

Pictures (1 Images total)

Natrotitanit
Views (File:
1583347653
): 171
Natrotitanit
schmutzigweißes Aggregat von Natrotitanit, Verkhnee-Espe-Massiv, Tarbagatai-Gebirge, Ostkasachstan, Kasachstan; BB < 1 mm, analysiert
Copyright: MinTreasure.com (Carsten Slotta); Contribution: openpit
Location: Kasachstan/Schyghys Qasaqstan oblysy (Ostkasachstan)/Tarbagatai-Gebirge/Verkhnee-Espe-Massiv
Mineral: Natrotitanite
Image: 1583347653
License: Usage for Mineralienatlas project only
Natrotitanit

schmutzigweißes Aggregat von Natrotitanit, Verkhnee-Espe-Massiv, Tarbagatai-Gebirge, Ostkasachstan, Kasachstan; BB < 1 mm, analysiert

Copyright: MinTreasure.com (Carsten Slotta)
Contribution: openpit 2020-03-04
Locality: Verkhnee-Espe-Massiv / Tarbagatai-Gebirge / Schyghys Qasaqstan oblysy (Ostkasachstan) / Kasachstan

Collectors Summary

Crystal System monoklin, C2/c

Chemism

Chemical formula

[Na(Y,REE)]Ti(SiO4)O

Additional chem. information

Titanit-Gruppe

Chemical composition

Natrium, Silicium, Titan, Yttrium, Sauerstoff, REE

Unit weight: 281.6189392 u; Number of atoms in the formula: 9

Info

Empirical formula:

[Na(Y0.75REE0.25)]Ti(SiO4)O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Oxygen

O

28.41

5

55.56

15.9994300

79.9971500

Sodium

Na

8.16

1

11.11

22.9897702

22.9897702

Silicon

Si

9.97

1

11.11

28.0855300

28.0855300

Titanium

Ti

17.00

1

11.11

47.8671000

47.8671000

Yttrium

Y

23.68

0.75

8.33

88.9058520

66.6793890

Rare Earth

REE

12.78

0.25

2.78

144.0000000

36.0000000

Analysis wt%

SiO2 : 28.17, Nb2O5 : 1.23, TiO2 : 35.23, SnO2 : 0.70, Y2O3 : 7.86, REE as Ce2O3 : 10.67, CaO : 8.33, Na2O : 5.61, F : 1.45, Ln2O3 : 18.53 (Ref: calc)

Strunz 9th edition incl. updates

9.AG.15

9: Silikate (Germanate)
A: Inselsilikate (Nesosilikate)
G: Insel(Neso)silikate mit zusätzlichem Anionen; Kationen in meist [6] und > [6] Koordination
15:Titanit-Gruppe

Lapis Classification

VIII/B.12-025

VIII: SILIKATE
B: Inselsilikate mit tetraederfremden Anionen
12: Kationen mit Koordinationszahlen zwischen [8] und [12]

Classification by Hölzel

9.AG.425

9: SILICATES
A: Nesosilicates
G: Nesosilicates with Cation: O
4: C small + large; Titanite-Group

IMA status

anerkannt - CNMNC - New minerals and nomenclature modifications approved in Jun. 2011

Mineral status

anerkanntes Mineral

Optical Properties

max. Birefringence

0.126

Birefringence chart\! Natrotitanite title=Birefringence chart Natrotitanite

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

1.904

RI value γ / ε

2.030

Ri mean

1.965~

2V angle

Biaxial

Crystallography

Crystal System

monoklin

Class (H-M)

2/m

Space Group number

15

Space Group

C2/c

Cell parameters a (Å)

6.569

Cell parameters b (Å)

8.687

Cell parameters c (Å)

7.092

Cell parameters a/b or c/a

0.756

Cell parameters c/b

0.816

Cell parameters α

90°

Cell parameters β

114.12

Cell parameters γ

90°

Z

4

Volumne (ų)

369.37

Kristall structure

Struktur bestimmt

X-Ray Powder Diffraction

4.941(30), 3.248(80), 2.994(60), 2.597(100), 2.273(30), 2.067(20), 1.641(40), 1.498(30)

XRD chart Natrotitanite

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

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Density (g/cm³)

5.064 ( ρ calc. Mineralienatlas )

(Co-)Type locality

(Co-)Type locality

Kasachstan/Schyghys Qasaqstan oblysy (Ostkasachstan)/Tarbagatai-Gebirge/Verkhnee-Espe-Massiv

Type material

Geological Scientific Museum of the Satpaev Institute of Geological Sciences

Collection number of type material

3010

Preface

Author (Name, Year)

A.V. Stepanov, G.K. Bekenova, V.L. Levin and F.C. Hawthorne (2011)

References

Stepanov, A.V., Bekenova, G.K., Levin, V.L. and Hawthorne, F.C. (2011) Natrotitanite, IMA 2011-033. CNMNC Newsletter No. 10, October 2011, page 2555;

Other languages

German

Natrotitanit

English

Natrotitanite

Russian

Натротитанит

CNMNC (IMA)-Number

IMA 2011-033

CNMNC symbol

Symbol

Nttn

Locations with GPS information