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Oxybismutomicrolite

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Collectors Summary

Color

schwarz

Crystal System

kubisch, Fd3m

Chemism

Chemical formula

(Bi_1.33☐0.67)_Σ2Ta₂O₆O

Empirical formula (analysis)

(Bi_0.79Na_0.68Ca_0.32Mn_0.03Pb_0.02☐_0.16)_Σ2.00(Ta_1.42Ti_0.30Nb_0.21Sn_0.07)_Σ2.00O_6.00(O_0.52F_0.38☐_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:

(Bi_0.79Na_0.68Ca_0.32Mn_0.03Pb_0.02Vc_0.16)(Ta_1.42Ti_0.30Nb_0.21Sn_0.07)O_6.00(O_0.52F_0.38Vc_0.10)

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

Search for minerals with similar chemistry

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

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
Volumne (Å³)	1149.376
Kristall 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)
	Calculated from d-spacing and intensity at 0.1541838 nm (Cu)

Crystals 3D

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Physical Properties

Density (g/cm³)	7.056 (berechnet) 6.98(2) (gemessen)
	7.05 ( ρ calc. Mineralienatlas )

(Co-)Type locality

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

Russland /Sibirien, Föderationskreis /Transbaikalien, Region (Zabaykalsky Krai)/Tschita (Chita)/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

Related minerals "Strunz Classification" (9. Edition) [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

'Betafite (of Hogarth 1977)' (Var.v. Pyrochlore supergroup)	(Ca,Na,U)₂(Ti,Nb,Ta)₂O₆(OH) kubisch : m3m : Fd3m	4.DH.15
Hydroplumboelsmoreite	(Pb,☐)₂(W,Fe³⁺)₂O₆(H₂O) kubisch : m3m : Fd3m	4.DH.15
Fluornatrocoulsellite	CaNa₃AlMg₃F₁₄ trigonal : 3m : R3m	4.DH.15
Hydroxymanganopyrochlore	(Mn,Th,Na,Ca,REE)₂(Nb,Ti)₂O₆(OH) kubisch : m3m : Fd3m	4.DH.15
'Alumotungstite' (Var.v. Hydrokenoelsmoreite)	(H₂O,Ca)_x(W,Al)₂(O,OH)₆·nH₂O kubisch	4.DH.15
'Calciobetafite' (Var.v. Pyrochlore supergroup)	Ca₂(Ti,Nb)₂(O,OH)₇ kubisch : m3m : Fd3m	4.DH.15
'Cesstibtantite' (Var.v. Pyrochlore supergroup)	(Cs,Na)SbTa₄O₁₂ kubisch : m3m : Fd3m	4.DH.15
'Ferritungstite' (Var.v. Hydrokenoelsmoreite)	(W⁶⁺,Fe³⁺)₂(O,OH)₆·n(H₂O,K,Ca,Na) kubisch : m3m : Fd3m	4.DH.15
Hydropyrochlore	(H₂O,☐)₂Nb₂(O,OH)₆(H₂O) kubisch : m3m : Fd3m	4.DH.15
'Plumbobetafite' (Var.v. Pyrochlore supergroup)	(Pb,U,Ca)(Ti,Nb)₂O₆(OH,F) kubisch : m3m : Fd3m	4.DH.15
'Stibiobetafite' (Var.v. Pyrochlore group)	(Sb³⁺,Ca)₂(Ti,Nb,Ta)₂(O,OH)₇ kubisch : m3m : Fd3m	4.DH.15
'Uranmicrolite' (Var.v. Microlite group)	(Ca,U)₂(Ta,Nb)₂O₆(OH,F) kubisch : m3m : Fd3m	4.DH.15
'Uranopyrochlore' (Var.v. Pyrochlore supergroup)	(Ca,U,Na,Ce)₂(Nb,Ta)₂(O,OH,F)₇ kubisch : m3m : Fd3m	4.DH.15
'Bariomicrolite'	Ba(Ta,Nb)₂(O,OH)₇ kubisch : m3m : Fd3m	4.DH.15
'Bariopyrochlore' (Var.v. Pyrochlore supergroup)	(Ba,Sr)(Nb,Ti)₂(O,OH)₇ kubisch : m3m : Fd3m	4.DH.15
'Natrobistantite' (Var.v. Microlite group)	(Na,Cs)Bi(Ta,Nb,Sb)₄O₁₂ kubisch	4.DH.15
'Plumbomicrolite' (Var.v. Microlite group)	(Pb,Na,Ca)₂(Ta,Nb)₂(O,OH)₇ kubisch : m3m : Fd3m	4.DH.15
'Plumbopyrochlore' (Var.v. Pyrochlore group)	(Pb,Y,U,Ca)_2-xNb₂O₆(OH) kubisch : m3m : Fd3m	4.DH.15
'Stannomicrolite' (Var.v. Microlite group)	(Sn²⁺,Fe²⁺)(Ta,Nb,Sn⁴⁺)₂(O,OH)₇ kubisch : m3m : Fd3m	4.DH.15
'Stibiomicrolite' (Var.v. Microlite group)	(Sb,Ca,Na)₂(Ta,Nb)₂(O,OH)₇ kubisch : m3m : Fd3m	4.DH.15
'Bismutomicrolite'	(Bi,Ca)(Ta,Nb)₂O₆(OH) kubisch : m3m : Fd3m	4.DH.15
'Bismutopyrochlore' (Var.v. Pyrochlore supergroup)	(Bi,U,Ca,Pb)_1+x(Nb,Ta)₂O₆(OH)·nH₂O kubisch : m3m : Fd3m	4.DH.15
Oxynatromicrolite	(Na,Ca,U)₂(Ta,Nb)₂O₆(O,F) kubisch : m3m : Fd3m	4.DH.15
'Yttrobetafite-(Y)' (Var.v. Pyrochlore supergroup)	(Y,U,Ce)₂(Ti,Nb,Ta)₂O₆(OH) amorph	4.DH.15
'Strontiopyrochlore' (Var.v. Pyrochlore group)	Sr_0.6Nb₂(O,OH)₇ kubisch : m3m : Fd3m	4.DH.15
Cesiokenopyrochlore	☐Nb₂(O,OH)₆Cs_1−x {x ∼ 0.20} kubisch : m3m : Fd3m	4.DH.15
Hydrokenoelsmoreite	WO₃·0.5H₂O kubisch : m3m : Fd3m	4.DH.15
Hydrokenomicrolite	(◻,H₂O)₂Ta₂(O,OH)₆(H₂O) kubisch : m3m : Fd3m	4.DH.15
Oxybismutomicrolite	(Bi_1.33☐0.67)_Σ2Ta₂O₆O kubisch : m3m : Fd3m	4.DH.15
Oxycalciomicrolite	Ca₂Ta₂O₇ kubisch : m3m : Fd3m	4.DH.15
Oxystannomicrolite	Sn₂Ta₂O₆O kubisch : m3m : Fd3m	4.DH.15
Oxystibiomicrolite	(Sb³⁺,Ca)₂Ta₂O₆O	4.DH.15
'Yttropyrochlore-(Y)' (Var.v. Pyrochlore group)	(Y,Na,Ca,U)_1-2(Nb,Ta,Ti)₂(O,OH)₇ kubisch	4.DH.15
'Ceriopyrochlore-(Ce)' (Var.v. Pyrochlore supergroup)	(Ca,Ce,Y,Na)₂(Nb,Ta)₂(O,OH,F)₇ kubisch : m3m : Fd3m	4.DH.15
Fluornatromicrolite	(Na,Ca,Bi)₂(Ta,Nb)₂O₆F kubisch : m3m : Fd3m	4.DH.15
Fluornatropyrochlore	(Na,Pb,Ca,REE,U)₂Nb₂O₆F kubisch : m3m : Fd3m	4.DH.15
Hydrokenopyrochlore	☐₂Nb₂O₄(OH)₂(H₂O) kubisch : m3m : Fd3m	4.DH.15
Hydroxyferroroméite	(Fe²⁺_1.5☐_0.5)Sb⁵⁺₂O₆(OH) kubisch : m3m : Fd3m	4.DH.15
Kenoplumbomicrolite	(Pb,◻)₂Ta ₂O₆(◻,O,OH) kubisch : m3m : Fd3m	4.DH.15
Oxycalciopyrochlore	Ca₂Nb₂O₆O	4.DH.15
Fluorcalciomicrolite	(Ca,Na)₂Ta₂(O,OH)₆F kubisch : m3m : Fd3m	4.DH.15
Hydroxykenoelsmoreite	(☐,Pb)₂(W,Fe³⁺,Al)₂(O,OH)₆(OH) trigonal : 3 : R3	4.DH.15
Hydroxykenomicrolite	(◻,Na,Sb³⁺)₂Ta₂O₆(OH) kubisch : m3m : Fd3m	4.DH.15
Hydroxykenopyrochlore	(☐,Ce,Ba)₂(Nb,Ti)₂O₆(OH,F) kubisch : m3m : Fd3m	4.DH.15
Fluorcalciopyrochlore	(Ca,Na)₂(Nb,Ti)₂O₆F kubisch : m3m : Fd3m	4.DH.15
Hydroxynatropyrochlore	(Na,Сa,Ce)₂Nb₂O₆(OH) kubisch : m3m : Fd3m	4.DH.15
Hydroxycalciomicrolite	Ca_1.5Ta₂O₆(OH) kubisch : 432 : P4₃32	4.DH.15
Hydroxyplumbopyrochlore	(Pb_1.5☐_0.5)Nb₂O₆(OH) kubisch : m3m : Fd3m	4.DH.15
Hydroxycalciopyrochlore	(Ca,Na,U,☐)₂(Nb,Ti)₂O₆(OH) kubisch : m3m : Fd3m	4.DH.15
Fluorcalcioroméite	(Ca,Na)₂Sb⁵⁺₂O₆(F,OH) kubisch : m3m : Fd3m	4.DH.15d

CNMNC (IMA)-Number

IMA 2019-047

CNMNC symbol

Symbol

Obmic

Automatic Links to external internet sources (Responsibility is with the operator)

German pages	DeWikiPedia - search for: Oxybismutomikrolith Google-Bilder-Suche - search for: Oxybismutomikrolith Mineralogisch-Petrographisches-Institut Hamburg - search for: Oxybismutomikrolith
English pages	Mindat - search for: Oxybismutomicrolite Webmineral - search for:Oxybismutomicrolite Handbook-of-Mineralogy - search for: Oxybismutomicrolite RRUFF - Raman, XRD and other mineral data - search for: Oxybismutomicrolite RRUFF - References and PDF downloads - search for: Oxybismutomicrolite American-Mineralogist-Crystal-Structure-Database - search for: Oxybismutomicrolite Athena - search for: Oxybismutomicrolite Strahlen.org - search for: Oxybismutomicrolite Mineralienatls.de (Forum) - search for: Oxybismutomikrolith
Russian pages	Webmineral.ru - search for: Оксивисмутомикролита

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German pages

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Crystal-Treasure.com - search for: Oxybismutomikrolith
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Edelsteine Neuburg - Gundolf Fischer - search for: Oxybismutomikrolith

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