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Bismutopyrochlore

Additional Functions

Collectors Summary

Color schwarz, dunkel grünlich braun
Streak color gelb
Hardness (Mohs) 5
Cleavages fehlt
Crystal System kubisch, Fd3m

Additional information / Summary

Möglicherweise Oxynatropyrochlor oder Nullertig-dominates Mitglied der Pyrochlor-Supergruppe

Chemism

Chem­ical formula

(Bi,U,Ca,Pb)1+x(Nb,Ta)2O6(OH)·nH2O

Chem­ical com­po­si­tion

Bismut, Blei, Calcium, Niob, Tantal, Sauerstoff, Uran, Wasserstoff

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

Clas­sifica­tion by Hölzel

4.CH.914

4: OXIDES
C: R2O3 Sesquioxides
H: Pyrochlore-Group, Nb-dominant on the B-site

Dana 8th edi­tion

08.02.01.09

08: Multiple Oxides with Nb, Ta, and Ti
02: Multiple Oxides with Nb, Ta, and Ti where (A)2 (B2O6) (O,OH,F)
01: Pyrochlore Group (Pyrochlore Subgroup; Nb>Ta;(Nb+Ta)>2(Ti)

IMA sta­tus

diskreditiert - The Canadian Mineralogist Vol. 48, pp. 673-698 (2010)

Min­eral sta­tus

Varietät

Var­i­ety / poly­type of

Pyrochlore supergroup

Optical Properties

Color

schwarz, dunkel grünlich braun

Streak color

gelb

Diaphane­ity (Trans­parency)

durchscheinend

max. Birefrin­gence

0.000

RI value α / ω / n

2.10

Ri mean

2.10

2V angle

Isotropisch

Crystallography

Crystal Sys­tem

kubisch

Class (H-M)

m3m

Space Group number

227

Space Group

Fd3m

Cell param­e­ters a (Å)

10.41

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 (ų)

1128.112

X-Ray Pow­der Diffrac­tion

5.98(40),
2.967(100),
2.614(70),
1.848(90),
1.569(90),
1.500(40),
1.195(80),
1.145(50)

XRD chart Bismutopyrochlore

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

Crystals 3D

Open larger view

Physical Properties

Hard­ness (Mohs)

5

Density (g/cm³)

4.97

Cleav­ages

fehlt

Preface

Author (Name, Year)

Chukanov & Skrigitil & Kuzmina & Zadov, 1999

References

Zapiski Vserossiskogo Mineralogicheskogo Obshchetstva 128 (1999) (4), 36

The Pyrochlore Supergroup of Minerals: Nomenclature; The Canadian Mineralogist Vol. 48, pp. 673-698 (2010)

Other languages

Spanish

Bismutopirocloro

German

Bismutopyrochlor

French

Bismutopyrochlore

English

Bismutopyrochlore

Russian

Висмутопирохлор

Japanese

蒼鉛パイロクロア

CNMNC (IMA)-Number

IMA 1998-059

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

German pages

DeWikiPedia - search for: Bismutopyrochlor
Google-Bilder-Suche - search for: Bismutopyrochlor
Mineralienatlas.de (Forum) - search for: Bismutopyrochlor

English pages

Mindat - search for: Bismutopyrochlore
Webmineral - search for:Bismutopyrochlore
Handbook-of-Mineralogy - search for: Bismutopyrochlore
RRUFF - Raman, XRD and other mineral data - search for: Bismutopyrochlore
RRUFF - References and PDF downloads - search for: Bismutopyrochlore
American-Mineralogist-Crystal-Structure-Database - search for: Bismutopyrochlore
Strahlen.org - search for: Bismutopyrochlore

Russian pages

Webmineral.ru - search for: Висмутопирохлор

Mineral Dealer

German pages

hausen - Mineralgroßhandel - search for: Bismutopyrochlor
Crystal-Treasure.com - search for: Bismutopyrochlor
Bosse - search for: Bismutopyrochlor
Edelsteine Neuburg - Gundolf Fischer - search for: Bismutopyrochlor



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