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Strontiopyrochlore

Pictures (4 Images total)

Strontiopyrochlor pseudomorph nach vermutl. Loparit-(Ce)
Views (File:
1245039101
): 737
Strontiopyrochlor pseudomorph nach vermutl. Loparit-(Ce)
Größe: 8 x 8 x 9 mm; Fundort: Vavnbed, Lovozero, Kola-Halbinsel, Murmansk, Russland
Copyright: Pavel M. Kartashov; Contribution: Philip Blümner
Location: Russland/Nordwestrussland, Föderationskreis/Murmansk, Oblast/Kola-Halbinsel/Lovozero/Vavnbed
Mineral: Strontiopyrochlore
Image: 1245039101
Rating: 5 (votes: 1)
License: Usage for Mineralienatlas project only
Strontiopyrochlor pseudomorph nach vermutl. Loparit-(Ce)

Größe: 8 x 8 x 9 mm; Fundort: Vavnbed, Lovozero, Kola-Halbinsel, Murmansk, Russland
Copyright: Pavel M. Kartashov
Contribution: Philip Blümner 2009-06-15
Locality: Vavnbed / Lovozero / Kola-Halbinsel / Murmansk, Oblast / Nordwestrussland, Föderationskreis / Russland
Strontiopyrochlor
Views (File:
1245039069
): 717
Strontiopyrochlor
Strontiopyrochlor pseudomorph nach vermutl. Loparit-(Ce); Größe: 8 x 8,5 x 9 mm; Fundort: Vavnbed, Lovozero, Kola-Halbinsel, Murmansk, Russland
Copyright: Pavel M. Kartashov; Contribution: Philip Blümner
Location: Russland/Nordwestrussland, Föderationskreis/Murmansk, Oblast/Kola-Halbinsel/Lovozero/Vavnbed
Mineral: Strontiopyrochlore
Image: 1245039069
License: Usage for Mineralienatlas project only
Strontiopyrochlor

Strontiopyrochlor pseudomorph nach vermutl. Loparit-(Ce); Größe: 8 x 8,5 x 9 mm; Fundort: Vavnbed, Lovozero, Kola-Halbinsel, Murmansk, Russland
Copyright: Pavel M. Kartashov
Contribution: Philip Blümner 2009-06-15
Locality: Vavnbed / Lovozero / Kola-Halbinsel / Murmansk, Oblast / Nordwestrussland, Föderationskreis / Russland
Strontiopyrochlor pseudomorph nach ubk. Mineral
Views (File:
1245039164
): 720
Strontiopyrochlor pseudomorph nach ubk. Mineral
Größe: 10x3 mm; Fundort: Vavnbed, Lovozero, Kola-Halbinsel, Murmansk, Russland
Copyright: Pavel M. Kartashov; Contribution: Philip Blümner
Location: Russland/Nordwestrussland, Föderationskreis/Murmansk, Oblast/Kola-Halbinsel/Lovozero/Vavnbed
Mineral: Strontiopyrochlore
Image: 1245039164
License: Usage for Mineralienatlas project only
Strontiopyrochlor pseudomorph nach ubk. Mineral

Größe: 10x3 mm; Fundort: Vavnbed, Lovozero, Kola-Halbinsel, Murmansk, Russland
Copyright: Pavel M. Kartashov
Contribution: Philip Blümner 2009-06-15
Locality: Vavnbed / Lovozero / Kola-Halbinsel / Murmansk, Oblast / Nordwestrussland, Föderationskreis / Russland
Strontiopyrochlor-Kristall
Views (File:
1245039207
): 760
Strontiopyrochlor-Kristall
Kristallgröße: 1 mm; Fundort: Vavnbed, Lovozero, Kola-Halbinsel, Murmansk, Russland
Copyright: Pavel M. Kartashov; Contribution: Philip Blümner
Location: Russland/Nordwestrussland, Föderationskreis/Murmansk, Oblast/Kola-Halbinsel/Lovozero/Vavnbed
Mineral: Strontiopyrochlore
Image: 1245039207
License: Usage for Mineralienatlas project only
Strontiopyrochlor-Kristall

Kristallgröße: 1 mm; Fundort: Vavnbed, Lovozero, Kola-Halbinsel, Murmansk, Russland
Copyright: Pavel M. Kartashov
Contribution: Philip Blümner 2009-06-15
Locality: Vavnbed / Lovozero / Kola-Halbinsel / Murmansk, Oblast / Nordwestrussland, Föderationskreis / Russland

Collectors Summary

Color hellbraun, hellgelb
Streak color weiß
Hardness (Mohs) 4.25
Crystal System kubisch, Fd3m

Additional information / Summary

Als Mineral diskreditiert; Entweder Fluorstrontiopyrochlor, Fluorkenopyrochlor, Calciopyrochlor oder nullwertig-domantes Mitglied der Pyrochlor-Gruppe

Chemism

Chemical formula

Sr0.6Nb2(O,OH)7

Chemical composition

Niob, Strontium, Sauerstoff, Wasserstoff

Unit weight: 352.14528125 u; Number of atoms in the formula: 11.35

Info

Empirical formula:

Sr0.6Nb2(O0.75(OH)0.25)7

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

0.50

1.75

15.42

1.0079470

1.7639073
Oxygen

O

31.80

7

61.67

15.9994300

111.9960100
Strontium

Sr

14.93

0.6

5.29

87.6210000

52.5726000
Niobium

Nb

52.77

2

17.62

92.9063820

185.8127640

Analysis wt%

Nb2O5 : 71.72, Fe2O3 : 1.53, SrO : 16.08, CaO : 0.42, Ln2O3 : 1.86, H2O : 7.56 (Ref: Doklady Akademiia Nauk, SSSR 86)

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.912

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

IMA status

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

Mineral status

Varietät

Variety / polytype of

Pyrochlore group

Optical Properties

Color

hellbraun, hellgelb

Streak color

weiß

Diaphaneity (Transparency)

durchscheinend bis opak

RI value α / ω / n

2.08

Ri mean

2.08

Anisotropism

Isotropisch

Crystallography

Crystal System

kubisch

Class (H-M)

m3m

Space Group number

227

Space Group

Fd3m

Cell parameters a (Å)

10.53

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)

1167.576

X-Ray Powder Diffraction

6.02(70),
3.30(10),
3.14(40),
3.011(100),
2.609(20),
1.846(30),
1.577(20),
1.574(20)
XRD chart Strontiopyrochlore

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

Crystals 3D

Open larger view

Physical Properties

Hardness (Mohs)

4.25

Density (g/cm³)

3.8 (gemessen) 3.99 (berechnet)

4.006 ( ρ calc. Mineralienatlas )

(Co-)Type locality

(Co-)Type locality

Russland/Nordwestrussland, Föderationskreis/Murmansk, Oblast/Kola-Halbinsel/Lovozero/Vavnbed

Preface

Author (Name, Year)

Lapin & Malyshev & Ploshko & Cherepivskaya, 1986

References

Transactions (Doklady) of the USSR Academy of Sciences, Earth Science Sections 290 (1986), 188

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

Wolfgang Seifert, Hans-Jürgen Förster, Dieter Rhede, Olaf Tietz, Jaromír Ulrych: Mineral inclusions in placer zircon from the Ohře (Eger) Graben: new data on “strontiopyrochlore”. Mineralogy and Petrology Vol. 106, Issue 1 (2012) S. 39–53.

Other languages

Spanish

Estronciopirocloro

German

Strontiopyrochlor

English

Strontiopyrochlore

French

Strontiopyrochlore

Russian

Стронциопирохлор

Locations with GPS information

IDs

GUSID (Global unique identifier short form) zB9l1IYp6UKrnGD-T7avlA
GUID (Global unique identifier) D4651FCC-2986-42E9-AB9C-60FE4FB6AF94
Database ID 3674