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Tashelgite

Pictures (1 Images total)

Tashelgit
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Tashelgit
nahezu farblose Nadeln von Tashelgit, Tashelginskoye, Tashelga Fluss, Gornaya Shoria, Kemerowo, Russland; BB ~ 3 mm, analysiert
Copyright: MinTreasure.com (Carsten Slotta); Contribution: openpit
Location: Russland/Sibirien, Föderationskreis/Kemerowo, Oblast/Gornaya Shoria Region/Tashelga, Fluß/Tashelginskoye
Mineral: Tashelgite
Image: 1584724292
License: Usage for Mineralienatlas project only
Tashelgit

nahezu farblose Nadeln von Tashelgit, Tashelginskoye, Tashelga Fluss, Gornaya Shoria, Kemerowo, Russland; BB 3 mm, analysiert

Copyright: MinTreasure.com (Carsten Slotta)
Contribution: openpit 2020-03-20
Locality: Tashelginskoye / Tashelga, Fluß / Gornaya Shoria Region / Kemerowo, Oblast / Sibirien, Föderationskreis / Russland

Collectors Summary

Crystal System monoklin, Pc

Chemism

Chemical formula

CaMgFe2+Al9O16(OH)

Chemical composition

Aluminium, Calcium, Eisen, Magnesium, Sauerstoff, Wasserstoff

Unit weight: 636.0607608 u; Number of atoms in the formula: 30

Info

Empirical formula:

CaMgFeAl9O16(OH)

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

0.16

1

3.33

1.0079470

1.0079470

Oxygen

O

42.76

17

56.67

15.9994300

271.9903100

Magnesium

Mg

3.82

1

3.33

24.3050600

24.3050600

Aluminium

Al

38.18

9

30.00

26.9815382

242.8338438

Calcium

Ca

6.30

1

3.33

40.0784000

40.0784000

Iron

Fe

8.78

1

3.33

55.8452000

55.8452000

Analysis wt%

Al2O3 : 70.70, Fe2O3 : 1.40, FeO : 11.32, MgO : 6.75, MnO : 0.45, CaO : 7.98, H2O : 1.80 (Ref: Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva, 1904-1974 2011)

Strunz 9th edition incl. updates

4

4: Oxide, Hydroxide (Oxide, Hydroxide, V[5,6]-Vanadate, Arsenite, Antimonite, Bismutite, Sulfite, Selenite, Tellurite, Iodate)
4:
4:

Lapis Classification

IV/B.10-010

IV: OXIDE
B: Oxide mit Verhältnis Metall zu Sauerstoff = 3:4 (Spinelltyp M3O4 und verwandte Verbindungen)

Classification by Hölzel

4.BH.100

4: OXIDES
B: Spinels R3O4
H:

IMA status

anerkannt - CNMNC Newsletter, July 2010

Mineral status

anerkanntes Mineral

Optical Properties

max. Birefringence

0.014

Birefringence chart\! Tashelgite title=Birefringence chart Tashelgite

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

1.736

RI value β

1.746

RI value γ / ε

1.750

Ri mean

1.744

2V angle

Biaxial (-) 20°

Crystallography

Crystal System

monoklin

Class (H-M)

m

Space Group number

7

Space Group

Pc

Cell parameters a (Å)

5.697

Cell parameters b (Å)

17.182

Cell parameters c (Å)

23.572

Cell parameters a/b or c/a

0.332

Cell parameters c/b

1.372

Cell parameters α

90°

Cell parameters β

90.5

Cell parameters γ

90°

Z

4

Volume (ų)

2307.277

Crystal structure

neuer Strukturtyp, Struktur ermittelt

X-Ray Powder Diffraction

11.79(48), 2.845(43), 2.616(100), 2.584(81), 2.501(39), 2.437(44), 2.406(61), 2.202(72)

XRD chart Tashelgite

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)

1.831 ( ρ calc. Mineralienatlas )

(Co-)Type locality

(Co-)Type locality

Russland/Sibirien, Föderationskreis/Kemerowo, Oblast/Gornaya Shoria Region/Tashelga, Fluß/Tashelginskoye

Type material

Fersman Mineralogical Museum of the Russian Academy of Sciences

Collection number of type material

3983/1

Preface

Name from

Ananyev, S.A., Konovalenko, S.I., Rastsvetaeva, R.K., Aksenov, S.M., Chukanov, N.V., Sapozhnikov, A.N. and Zagorskii, V.E. (2010)

Author (Name, Year)

Ananyev, S.A., Konovalenko, S.I., Rastsvetaeva, R.K., Aksenov, S.M., Chukanov, N.V., Sapozhnikov, A.N. and Zagorskii, V.E. (2010)

Detailed description

Typlokalität in der Tashelginskoye Formation

References

Rastsvetaeva, R.K., Aksenov, S.M., Verin, I.A. (2010), Crystal structure of complex natural aluminum magnesium calcium iron oxide. Crystallography Reports,55, 563-568.

Ananyev, S.A., Konovalenko, S.I., Rastsvetaeva, R.K., Aksenov, S.M., Chukanov, N.V., Sapozhnikov, A.N. and Zagorskii, V.E. (2010) Tashelgite, IMA 2010-017. CNMNC Newsletter, August 2010, page 798; Mineralogical Magazine, 74, 797-800

Other languages

German

Tashelgit

English

Tashelgite

Russian

Ташелгит

Alternative Name

Lodochnikovite (of Nefedov)

CNMNC (IMA)-Number

IMA 2010-017

CNMNC symbol

Symbol

Thg

Locations with GPS information

IDs

GUSID (Global unique identifier short form) Y-XFOlhDF02fOmAFyhzImA
GUID (Global unique identifier) 3AC5E563-4358-4D17-9F3A-6005CA1CC898
Database ID 6934