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Surkhobite

Pictures (1 Images total)

Surkhobit
Views (File:
1591123795
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Surkhobit
orangebraunes Aggregat von Surkhobit, Surkhob Becken, Dara-i-Pioz Gletscher, Tien Shan, Tadschikistan; BB ~ 1 mm, analysiert
Copyright: MinTreasure.com (Carsten Slotta); Contribution: openpit
Location: Tadschikistan/Republik-unterstellte Gebiete (Nohijahoi tobei Dschumhurij)/Dara-i-Pioz (Darai-Pioz)
Mineral: Surkhobite
Image: 1591123795
License: Usage for Mineralienatlas project only
Surkhobit

orangebraunes Aggregat von Surkhobit, Surkhob Becken, Dara-i-Pioz Gletscher, Tien Shan, Tadschikistan; BB 1 mm, analysiert

Copyright: MinTreasure.com (Carsten Slotta)
Contribution: openpit 2020-06-02
Locality: Dara-i-Pioz (Darai-Pioz) / Republik-unterstellte Gebiete (Nohijahoi tobei Dschumhurij) / Tadschikistan

Collectors Summary

Color bräunlichrot
Streak color weiß
Lustre Glasglanz
Hardness (Mohs) 4.5 - 5
Cleavages vollkommen {001}
Fracture uneben
Crystal System monoklin, C2
Morphology Das Mineral bildet undeutliche, plattige Kristalle bis zu 1 mm Größe und Körner mit Dimensionen bis zu 2 x 1 x 0,4 cm.

Chemism

Chemical formula

NaCaBa2Mn8Ti4O4(Si2O7)4(F5O)

Chemical composition

Barium, Calcium, Mangan, Natrium, Silicium, Titan, Fluor, Sauerstoff

Unit weight: 1816.35381565 u; Number of atoms in the formula: 62

Info

Empirical formula:

NaCaBa2Mn8Ti4O4(Si2O7)4(F5O)

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Oxygen

O

29.07

33

53.23

15.9994300

527.9811900

Fluorine

F

5.23

5

8.06

18.9984033

94.9920163

Sodium

Na

1.27

1

1.61

22.9897702

22.9897702

Silicon

Si

12.37

8

12.90

28.0855300

224.6842400

Calcium

Ca

2.21

1

1.61

40.0784000

40.0784000

Titanium

Ti

10.54

4

6.45

47.8671000

191.4684000

Manganese

Mn

24.20

8

12.90

54.9380499

439.5043992

Barium

Ba

15.12

2

3.23

137.3277000

274.6554000

Analysis wt%

SiO2 : 27.17, Nb2O5 : 2.14, TiO2 : 16.14, Fe2O3 : 2.11, FeO : 13.92, MnO : 16.32, CaO : 2.53, BaO : 11.16, Na2O : 2.27, K2O : 1.87, F : 2.94, H2O : 1.17 (Ref: European Journal of Mineralogy 2008)

Strunz 9th edition incl. updates

9.BE.67

9: Silikate (Germanate)
B: Gruppensilikate (Sorosilikate)
E: Si2O7 Gruppen mit zusätzlichen Anionen; Kationen in oktahedraler [6] und größerer Koordination
67:Perraultit-Gruppe

Lapis Classification

VIII/C.14-035

VIII: SILIKATE
C: Gruppensilikate
14: Gruppensilikate [Si2O7] 6-, mit tetraederfremden Anionen (O,OH,F); Reihe Murmanit-Lomonosovit

Classification by Hölzel

9.BH.230

9: SILICATES
B: Sorosilicates
H: Rosenbuschite-Lamprophyllite-Group

Dana 8th edition

56.02.06b.04

56: Sorosilicates Sorosilicate Si2O7 Groups and O, OH, F. and H2O
02: Sorosilicates Sorosilicate Si2O7 Groups and O, OH, F. and H2O with cations in [4] and/or >[4] coordination
06b: Seidozerite - Lamprophyllite group (Bafertisite subgroup)

IMA status

zuerst aberkannt (IMA 06-E) = Jinshajiangit;
wieder revalidiert (IMA 07-A) unterscheidet sich doch von Jinshajiangit; Ca dominiert die A(6) Seite. IMA 06-E hinfällig
diskreditiert 2021 CNMNC IMA (IMA 20-A), ident. mit Perraultit

Mineral status

diskreditiert

Optical Properties

Color

bräunlichrot

Streak color

weiß

Diaphaneity (Transparency)

durchscheinend

Lustre

Glasglanz

max. Birefringence

0.098

Birefringence chart\! Surkhobite title=Birefringence chart Surkhobite

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

1.790

RI value β

1.858

RI value γ / ε

1.888

Ri mean

1.845

2V angle

Biaxial (-) 65°

Orientation

Y = b, Z ^ a = 24°

Dispersion

stark, r < v

Pleochroism

Im Durchlicht deutlicher Pleochroismus von Y (orange) > Z (hellgelb) > X (gelb)

Crystallography

Crystal System

monoklin

Class (H-M)

2

Space Group number

5

Space Group

C2

Cell parameters a (Å)

10.723

Cell parameters b (Å)

13.826

Cell parameters c (Å)

20.791

Cell parameters a/b or c/a

0.776

Cell parameters c/b

1.504

Cell parameters α

90°

Cell parameters β

95°

Cell parameters γ

90°

Z

4

Volume (ų)

3070.665

X-Ray Powder Diffraction

10.39(20),
5.18(10),
3.454(100),
3.186(10),
2.862(10),
2.592(70),
2.074(40),
1.728(10)

XRD chart Surkhobite

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

Morphology

Das Mineral bildet undeutliche, plattige Kristalle bis zu 1 mm Größe und Körner mit Dimensionen bis zu 2 x 1 x 0,4 cm.

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Hardness (Mohs)

4.5 - 5

VHN (Hardness Vickers)

370 (25g)

Density (g/cm³)

3.98 (berechnet) 3.84 (gemessen)

3.929 ( ρ calc. Mineralienatlas )

Cleavages

vollkommen {001}

Fracture

uneben

Tenacity

spröde

Preface

Name from

Typlokalität

Author (Name, Year)

Eskova & Dusmatov & Rastsvetaeva & Chukanov & Voronkov & 2003

References

Crystallography Reports 48 (2003), 384.

Zapiski Vserossiskogo Mineralogicheskogo Obshchetstva 132 (2003) (2), 60.

American Mineralogist 89 (2004), 469.

Commission on New Minerals, Nomenclature and Classification Publication pending.

Neue Mineralien IMA Webseite Mai 2007. [Revalidierung]

Mineralien Welt 06/09, Steffen Jahn, Neue Mineralien

European Journal of Mineralogy 20 (2008), 289

Elena Sokolova; Maxwell C. Day; Frank C. Hawthorne; Atali A. Agakhanov; Fernando Cámara, Yulia A. Uvarova, Giancarlo Della Ventura:From Structure Topology to Chemical Composition. XXIX. Revision of the Crystal Structure of Perraultite, NaBaMn4Ti2(Si2O7)2O2(OH)2F, a Seidozerite-Supergroup TS-Block Mineral from the Oktyabr'skii Massif, Ukraine, and Discreditation of Surkhobite. The Canadian Mineralogist Vol. 59, Nr. 2 (2021) S. 365-379.

Other languages

German

Surkhobit

Spanish

Surkhobita

English

Surkhobite

French

Surkhobite

Russian

Сурхобит

Simplified Chinese

苏尔赫比石

Traditional Chinese

蘇爾赫比石

Alternative Name

Traditional Chinese

鋇鈣鈦雲母

Simplified Chinese

钡钙钛云母

CNMNC (IMA)-Number

IMA 2002-037

Locations with GPS information

IDs

GUSID (Global unique identifier short form) n9QD-uIpMU6x5lrQGWbkew
GUID (Global unique identifier) FA03D49F-29E2-4E31-B1E6-5AD01966E47B
Database ID 3699