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Toturite (Toturit)

Collectors Summary

Crystal System kubisch, Ia3d

Chemism

Chemical formula

{Ca3}[Sn4+2](SiFe3+2)O12

Additional chem. information

Granat Gruppe

Chemical composition

Calcium, Eisen, Silicium, Zinn, Sauerstoff

Unit weight: 689.42569 u; Number of atoms in the formula: 20

Info

Empirical formula:

{Ca3}[Sn2](SiFe2)O12

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Oxygen

O

27.85

12

60.00

15.9994300

191.9931600

Silicon

Si

4.07

1

5.00

28.0855300

28.0855300

Calcium

Ca

17.44

3

15.00

40.0784000

120.2352000

Iron

Fe

16.20

2

10.00

55.8452000

111.6904000

Tin

Sn

34.44

2

10.00

118.7107000

237.4214000

Analysis wt%

SiO2 : 4.90, Sb2O5 : 7.77, TiO2 : 4.24, SnO2 : 32.58, Al2O3 : 4.59, Fe2O3 : 19.27, FeO : 0.53, CaO : 24.78 (Ref: American Mineralogist 2010)

Strunz 9th edition incl. updates

9.AD.25

9: Silikate (Germanate)
A: Inselsilikate (Nesosilikate)
D: Insel(Neso)silikate ohne weitere Anionen; Kationen in oktahedraler [6] und gewöhnlich größerer Koordination
25:Granat-Gruppe

Lapis Classification

VIII/A.08-180

VIII: SILIKATE
A: Inselsilikate mit [SiO4] 4--Baugruppen
8: Kationen in kubischer und oktaedrischer Koordination [8+6]; Granat-Gruppe

Classification by Hölzel

9.AC.560

9: SILICATES
A: Nesosilicates
C: Garnet-Group
5: Schorlomite-Group - 6-coord. Ti, Zr, Sn

IMA status

anerkannt, IMA WEB-Seite, Neue Mineralien Juli 2009

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

Garnet supergroup  ⇒ Silicate garnets; Schorlomite group (Z charge 10)

Optical Properties

max. Birefringence

0.000

2V angle

Isotropisch

Crystallography

Crystal System

kubisch

Class (H-M)

m3m

Space Group number

230

Space Group

Ia3d

Cell parameters a (Å)

12.55

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

8

Volume (ų)

1976.656

X-Ray Powder Diffraction

4.437(67), 3.138(74), 2.806(59), 2.562(100), 1.984(23), 1.677(91), 1.146(31), 1.046(25)

XRD chart Toturite

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

Physical Properties

Density (g/cm³)

4.49 (berechnet)

4.633 ( ρ calc. Mineralienatlas )

Preface

Author (Name, Year)

Irina O. Galuskina, Evgeny V. Galuskin, Piotr Dzierzanowski, Viktor M. Gazeev, Krystian Prusik, Nikolai N. Pertsev, Antoni Winiarski, Aleksandr E. Zadov, Roman Wrzalik (2010)

References

IMA WEB-Seite, Neue Mineralien Juli 2009

Irina O. Galuskina, Evgeny V. Galuskin, Piotr Dzierzanowski, Viktor M. Gazeev, Krystian Prusik, Nikolai N. Pertsev, Antoni Winiarski, Aleksandr E. Zadov, Roman Wrzalik: Toturite Ca3Sn2Fe2SiO12—A new mineral species of the garnet group. American Mineralogist Vol. 95, Nr. 8-9 (2010) S. 1305–1311.

http://systematic-mineralogy.com/mineral.aspx?id=2846

Grew, E.S., Locock, A.J., Mills, S.J., Galuskina, I.O., Galuskin, E.V., Halenius, U., 2012; Nomenclature of the garnet supergroup. American Mineralogist; preprint December 2012 - [Formel]

IMA group assignments

 
{X3}[Y2](Z3)φ12
 
 


 
 
 
{Ca3}[Sn4+2](SiAl2)O12
kubisch
Ia3d

 
 
 
{Ca3}[Zr2](SiFe3+2)O12
kubisch
Ia3d

 
 
 
{Ca3}[Zr2](SiAl2)O12
kubisch
Ia3d

 
 
 
{Ca3}[Ti2](SiFe3+2)O12
kubisch
Ia3d

 
 
 
{Ca3}[Sn4+2](SiFe3+2)O12
kubisch
Ia3d

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Actuality: 26. Mar 2024 - 21:39:37

Other languages

German

Toturit

Spanish

Toturita

English

Toturite

Russian

Тотурит

CNMNC (IMA)-Number

IMA 2009-033

CNMNC symbol

Symbol

Tot

Locations with GPS information

IDs

GUSID (Global unique identifier short form) 6ea8z4OJwkCqhbdIOrsyNw
GUID (Global unique identifier) CFBCE6E9-8983-40C2-AA85-B7483ABB3237
Database ID 5240