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Oxybismutomicrolite (Oxybismutomikrolith)

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Oxybismutomikrolith
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Oxybismutomikrolith
schwarzes Aggregat von Oxybismutomikrolith, Malkhan, Chita, Transbaikalien, Sibirien, Russland; BB ~ 1 mm, analysiert
Copyright: mintreasure.com; Contribution: openpit
Location: Russland/Sibirien, Föderationskreis/Transbaikalien, Region (Zabaykalsky Krai)/Krasnochikoysky, Rajon/Malkhan Pegmatitfeld (Malchansk; Малханского)
Mineral: Oxybismutomicrolite
Image: 1681052268
License: Usage for Mineralienatlas project only
Oxybismutomikrolith

schwarzes Aggregat von Oxybismutomikrolith, Malkhan, Chita, Transbaikalien, Sibirien, Russland; BB 1 mm, analysiert
Copyright: mintreasure.com
Contribution: openpit 2023-04-09
Locality: Malkhan Pegmatitfeld (Malchansk; Малханского) / Krasnochikoysky, Rajon / Transbaikalien, Region (Zabaykalsky Krai) / Sibirien, Föderationskreis / Russland

Collectors Summary

Color schwarz
Crystal System kubisch, Fd3m

Chemism

Chemical formula

(Bi1.33☐0.67)Σ2Ta2O6O

Empirical formula (analysis)

(Bi0.79Na0.68Ca0.32Mn0.03Pb0.02☐0.16)Σ2.00(Ta1.42Ti0.30Nb0.21Sn0.07)Σ2.00O6.00(O0.52F0.38☐0.10)Σ1.00

Chemical composition

Bismut, Tantal, Sauerstoff, Vakanz

Unit weight: 610.0069032706 u; Number of atoms in the formula: 11

Info

Empirical formula:

(Bi0.79Na0.68Ca0.32Mn0.03Pb0.02Vc0.16)(Ta1.42Ti0.30Nb0.21Sn0.07)O6.00(O0.52F0.38Vc0.10)

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Vacancy

Vc

0.00

0.26

2.36

0.0000000

0.0000000
Oxygen

O

17.10

6.52

59.27

15.9994300

104.3162836
Fluorine

F

1.18

0.38

3.45

18.9984033

7.2193932
Sodium

Na

2.56

0.68

6.18

22.9897702

15.6330437
Calcium

Ca

2.10

0.32

2.91

40.0784000

12.8250880
Titanium

Ti

2.35

0.3

2.73

47.8671000

14.3601300
Manganese

Mn

0.27

0.03

0.27

54.9380499

1.6481415
Niobium

Nb

3.20

0.21

1.91

92.9063820

19.5103402
Tin

Sn

1.36

0.07

0.64

118.7107000

8.3097490
Tantalum

Ta

42.12

1.42

12.91

180.9479100

256.9460322
Lead

Pb

0.68

0.02

0.18

207.2100000

4.1442000
Bismuth

Bi

27.06

0.79

7.18

208.9803820

165.0945018

Strunz 9th edition incl. updates

4.DH.15

4: Oxide, Hydroxide (Oxide, Hydroxide, V[5,6]-Vanadate, Arsenite, Antimonite, Bismutite, Sulfite, Selenite, Tellurite, Iodate)
D: Metall: Sauerstoff = 1:2 und vergleichbare
H: Mit großen (± mittelgroßen) [Kationen]; Lagen kantenverknüpfter Oktaeder
15:Pyrochlor-Gruppe

IMA status

anerkannt, CNMNC Newsletter No. 51 Aug-Sep 2019

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

 Pyrochlore supergroup  ⇒ Microlite group

Optical Properties

Color

schwarz

Crystallography

Crystal System

kubisch

Class (H-M)

m3m

Space Group number

227

Space Group

Fd3m

Cell parameters a (Å)

10.475(1)

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)

1149.376

Crystal structure

Pyrochlor-Supergruppe; Struktur ermittelt

X-Ray Powder Diffraction

6.051(12), 3.160(10), 3.026(100), 2.621(32), 1.854(33), 1.581(27), 1.514(7), 1.203(7)
XRD chart Oxybismutomicrolite

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

Crystals 3D

Open larger view

Physical Properties

Density (g/cm³)

7.056 (berechnet) 6.98(2) (gemessen)

7.05 ( ρ calc. Mineralienatlas )

(Co-)Type locality

(Co-)Type locality

Russland/Sibirien, Föderationskreis/Transbaikalien, Region (Zabaykalsky Krai)/Krasnochikoysky, Rajon/Malkhan Pegmatitfeld (Malchansk; Малханского)

Russland/Sibirien, Föderationskreis/Transbaikalien, Region (Zabaykalsky Krai)/Krasnochikoysky, Rajon/Malkhan Pegmatitfeld (Malchansk; Малханского)/Solnechnaya Pegmatit

Type material

Das Typenmaterial ist in den Sammlungen des Fersman Mineralogischen Museums, Russische Akademie der Wissenschaften, Leninskiy Prospekt 18-2, Moskau 119071, Russland, Registernummer 54091 hinterlegt.

Preface

Occurrences

Eingebettet in in Albit mit Elbait

Author (Name, Year)

Anatoly V. Kasatkin, Sergey N. Britvin, Igor S. Peretyazhko, Nikita V. Chukanov, Radek Škoda und Atali A. Agakhanov (2020)

References

Anatoly V. Kasatkin; Sergey N. Britvin ; Igor S. Peretyazhko; Nikita V. Chukanov; Radek Škoda; Atali A. Agakhanov: Oxybismutomicrolite, a new pyrochlore-supergroup mineral from the Malkhan pegmatite field, Central Transbaikalia, Russia. Mineralogical Magazine Vol.84, Nr. 3 (2020) S. 444-454.

http://www.igc.irk.ru/ru/item/3857-otkryt-novyj-mineral-09-2019

Kasatkin, A.V., Britvin, S.N., Peretyazhko, I.S., Chukanov, N.V., Škoda, R. and Agakhanov, A.A. (2019) Oxybismutomicrolite, IMA 2019-047. CNMNC Newsletter No. 51; European Journal of Mineralogy, 31, https://doi.org/10.1127/ejm/2019/0031-2894

IMA group assignments

Other languages

English

Oxybismutomicrolite

German

Oxybismutomikrolith

Russian

Оксивисмутомикролита

CNMNC (IMA)-Number

IMA 2019-047

CNMNC symbol

Symbol

Obmic

Locations with GPS information

IDs

GUSID (Global unique identifier short form) rMwWf8Cgu0eHOpsWouZ37Q
GUID (Global unique identifier) 7F16CCAC-A0C0-47BB-873A-9B16A2E677ED
Database ID 8741