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Plumbopyrochlore

Pictures (2 Images total)

Fergusonit-(Y) (braun, schwarz) mit Plumbopyrochlorkruste
Views (Image: 1245591167): 1451
Fergusonit-(Y) (braun, schwarz) mit Plumbopyrochlorkruste

Größe: 40x22x08 mm; Fundort: Ploskaya, West-Keivy-Massiv, Kola-Halbinsel, Russland

Copyright: Pavel M. Kartashov
Contribution: slugslayer 2009-06-21
Locality: Ploskaya / Western Keivy Massif / Keivy-Massiv / Kola-Halbinsel / Murmansk, Oblast / Nordwestrussland, Föderationskreis / Russland
Plumbopyrochlor (orangebraun) mit Churchit-(Y)
Views (Image: 1244957882): 638
Plumbopyrochlor (orangebraun) mit Churchit-(Y)

Bildbreite: 6 mm; Fundort: Ploskaya, West-Keivy-Massiv, Kola-Halbinsel, Russland

Copyright: Pavel M. Kartashov
Contribution: slugslayer 2009-06-14
Locality: Ploskaya / Western Keivy Massif / Keivy-Massiv / Kola-Halbinsel / Murmansk, Oblast / Nordwestrussland, Föderationskreis / Russland

Collectors Summary

Color gelbbraun / braun / grünlichgelb / rot
Streak color -
Hardness (Mohs) -
Cleavages fehlt
Crystal System kubisch, Fd3m
Morphology erdig

Additional information / Summary

Eine Varietät der Pyrochlor-Gruppe; einzelne Proben sind möglicherweise die neuen Mineralien Oxyplumbopyrochlor, Kenoplumbopyrochlor

Chemism

Chem­ical formula

(Pb,Y,U,Ca)2-xNb2O6(OH)

Chem­ical com­po­si­tion

Blei, Calcium, Niob, Yttrium, 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.461

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

Dana 8th edi­tion

08.02.01.06

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 group

Optical Properties

Color

gelbbraun / braun / grünlichgelb / rot

Streak color

-

Diaphane­ity (Trans­parency)

opak

RI value α / ω / n

2.08

Ri mean

2.08

2V angle

Isotropisch

Crystallography

Crystal Sys­tem

kubisch

Class (H-M)

m3m

Space Group number

227

Space Group

Fd3m

Cell param­e­ters a (Å)

10.534

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)

1168.907

X-Ray Pow­der Diffrac­tion

3.02(100),
2.615(60),
1.861(90),
1.581(90),
1.209(70),
1.180(60),
1.077(80),
1.017(80)

XRD chart Plumbopyrochlore

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

Morphol­ogy

erdig

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Hard­ness (Mohs)

-

Density (g/cm³)

5.04

Cleav­ages

fehlt

Preface

Occurrences

in Karbonatiten, Pegmatiten

Rare­ness

sehr selten

Author (Name, Year)

Skorobogatova & Sidorenko & Dorofeeva & Stolyarova, 1966

Rel­evance, Usage

nur zu Sammlerzwecken

Col­lector informa­tion

speziell für Systematiker und Ästhetik-Liebhaber

Other languages

Spanish

Plumbopirocloro

German

Plumbopyrochlor

French

Plumbopyrochlore

English

Plumbopyrochlore

Russian

Плюмбопирохлор

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

German pages

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

English pages

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

Russian pages

Webmineral.ru - search for: Плюмбопирохлор

Mineral Dealer

German pages

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

Locations with GPS information