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Fluornatropyrochlore (Fluornatropyrochlor)

Pictures (3 Images total)

Fluornatropyrochlor
Views (File:
1620501415
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Fluornatropyrochlor
Agua de Pau Vulkan, Azoren; Bb 2 mm.
Copyright: Guy Heinen; Contribution: guyhein
Collection: Guy Heinen
Location: Portugal/Azoren (Ilhas dos Açores), Autonome Region/Sao Miguel, Insel/Lagoa, Kreis/Água de Pau Vulkan
Mineral: Fluornatropyrochlore
Image: 1620501415
Rating: 7.5 (votes: 2)
License: Usage for Mineralienatlas project only
Fluornatropyrochlor

Agua de Pau Vulkan, Azoren; Bb 2 mm.

Collection: Guy Heinen
Copyright: Guy Heinen
Contribution: guyhein 2021-05-08
Locality: Água de Pau Vulkan / Lagoa, Kreis / Sao Miguel, Insel / Azoren (Ilhas dos Açores), Autonome Region / Portugal
Fluornatropyrochlor
Views (File:
1589712826
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Fluornatropyrochlor
oranger, oktaedrischer Kristall von Fluornatropyrochlor in sanidinreichem Xenolith, Água de Pau Vulkan, São Miguel, Azoren, Portugal; BB < 1 mm, analysiert
Copyright: MinTreasure.com (Carsten Slotta); Contribution: openpit
Location: Portugal/Azoren (Ilhas dos Açores), Autonome Region/Sao Miguel, Insel/Lagoa, Kreis/Água de Pau Vulkan
Mineral: Fluornatropyrochlore
Image: 1589712826
License: Usage for Mineralienatlas project only
Fluornatropyrochlor

oranger, oktaedrischer Kristall von Fluornatropyrochlor in sanidinreichem Xenolith, Água de Pau Vulkan, São Miguel, Azoren, Portugal; BB < 1 mm, analysiert

Copyright: MinTreasure.com (Carsten Slotta)
Contribution: openpit 2020-05-17
Locality: Água de Pau Vulkan / Lagoa, Kreis / Sao Miguel, Insel / Azoren (Ilhas dos Açores), Autonome Region / Portugal
Fluornatropyrochlor
Views (File:
1629738849
): 204
Fluornatropyrochlor
Fluornatropyrochlor, Pau Vulkan, Lagoa, Azoren, Portugal, BB: 1,44 mm
Copyright: Harald Biecker; Contribution: Harald Biecker
Collection: Harald Biecker
Location: Portugal/Azoren (Ilhas dos Açores), Autonome Region/Sao Miguel, Insel/Lagoa, Kreis/Água de Pau Vulkan
Mineral: Fluornatropyrochlore
Image: 1629738849
License: Usage for Mineralienatlas project only
Fluornatropyrochlor

Fluornatropyrochlor, Pau Vulkan, Lagoa, Azoren, Portugal, BB: 1,44 mm

Collection: Harald Biecker
Copyright: Harald Biecker
Contribution: Harald Biecker 2021-08-23
Locality: Água de Pau Vulkan / Lagoa, Kreis / Sao Miguel, Insel / Azoren (Ilhas dos Açores), Autonome Region / Portugal

Collectors Summary

Hardness (Mohs) 4 - 4.5
Crystal System kubisch, Fd3m

Chemism

Chemical formula

(Na,Pb,Ca,REE,U)2Nb2O6F

Empirical formula (analysis)

(Na1.03Pb0.34Ca0.17U0.10Th0.01Ce0.12La0.05Y0.02Nd0.01)Σ1.85(Nb1.88Ti0.08Ta0.06Sn0.01)Σ2.03O6.21F0.79

Chemical composition

Blei, Calcium, Natrium, Niob, Fluor, Sauerstoff, Uran, REE

Unit weight: 458.9497653735 u; Number of atoms in the formula: 10.88

Info

Empirical formula:

(Na1.03Pb0.34Ca0.17U0.10Th0.01Ce0.12La0.05Y0.02Nd0.01)(Nb1.88Ti0.08Ta0.06Sn0.01)O6.21F0.79

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Oxygen

O

21.65

6.21

57.08

15.9994300

99.3564603

Fluorine

F

3.27

0.79

7.26

18.9984033

15.0087386

Sodium

Na

5.16

1.03

9.47

22.9897702

23.6794633

Calcium

Ca

1.48

0.17

1.56

40.0784000

6.8133280

Titanium

Ti

0.83

0.08

0.74

47.8671000

3.8293680

Yttrium

Y

0.39

0.02

0.18

88.9058520

1.7781170

Niobium

Nb

38.06

1.88

17.28

92.9063820

174.6639982

Tin

Sn

0.26

0.01

0.09

118.7107000

1.1871070

Lanthanum

La

1.51

0.05

0.46

138.9055200

6.9452760

Cerium

Ce

3.66

0.12

1.10

140.1161000

16.8139320

Neodymium

Nd

0.31

0.01

0.09

144.2430000

1.4424300

Tantalum

Ta

2.37

0.06

0.55

180.9479100

10.8568746

Lead

Pb

15.35

0.34

3.13

207.2100000

70.4514000

Thorium

Th

0.51

0.01

0.09

232.0381100

2.3203811

Uranium

U

5.19

0.1

0.92

238.0289130

23.8028913

Analysis wt%

Na2O : 6.80, K2O : 0.01, CaO : 2.01, MgO : 0.01, FeO : 0.05, SrO : 0.03, PbO : 16.17, Ce2O3 : 4.29, La2O3 : 1.65, Nd2O3 : 0.41, Y2O3 : 0.42, SiO2 : 0.03, TiO2 : 1.36, UO2 : 5.81, Ta2O5 : 3.00, Nb2O5 : 53.42, F : 3.19, Cl : 0.02, ThO2, Sb2O5 : 0.01, ZrO2 : 0.01, MnO : 0.04, SnO2 : 0.34, H2O nicht detektiert, Total : 98.21 wt.%

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

Lapis Classification

IV/C.12-012

IV: OXIDE
C: Oxide mit Verhältnis Metall : Sauerstoff = 2:3 (M2O3 und verwandte Verbindungen)
12: Pyrochlor-Gruppe; PYROCHLOR-Untergruppe [Nb ± Ta]

Classification by Hölzel

4.CH.020

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

IMA status

anerkannt - CNMNC Newsletter No. 17, October 2013

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

Pyrochlore supergroup  ⇒ Pyrochlore group

Optical Properties

RI value α / ω / n

n = 2.10(5) (589.9 nm)

Anisotropism

isotropisch

Crystallography

Crystal System

kubisch

Class (H-M)

m3m

Space Group number

227

Space Group

Fd3m

Cell parameters a (Å)

10.5053

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)

1159.379

X-Ray Powder Diffraction

6.074(3),
3.042(100),
2.628(38),
1.857(34),
1.582(15),
1.515(4),
1.314(2),
1.205(3)

XRD chart Fluornatropyrochlore

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

Crystals 3D

Open larger view

Physical Properties

Hardness (Mohs)

4 - 4.5

Density (g/cm³)

5.275 (berechnet)

5.258 ( ρ calc. Mineralienatlas )

(Co-)Type locality

(Co-)Type locality

Mongolei/Chowd, Aimag/Altai-Hochgebirge/Khaldzan-Buragtag-Massiv

China/Sichuan, Provinz/Liangshan, Präfektur/Mianning, Kreis/Maoniuping SE-Lagerstätte

Type material

Laboratory of Crystal Structure, Scientific Research Institute, China University of Geosciences, Beijing, 100083, China

Collection number of type material

MNP-X-2

Preface

Author (Name, Year)

Yin Jingwu, Li Guowu, Yang Guangming, Xiong Ming, Ge Xiangkun und Pan Baoming (2013)

References

The Pyrochlore Supergroup of Minerals: Nomenclature - The Canadian MineralogistVol. 48, pp. 673-698 (2010) http://pubsites.uws.edu.au/ima-cnmnc/Atencio%20et%20al%20pyrochlore%20nomenclature.pdf

Yin Jingwu, Li Guowu, Yang Guangming, Xiong Ming, Ge Xiangkun und Pan Baoming (2013) Fluornatropyrochlore, IMA 2013-056. CNMNC Newsletter No. 17, October 2013, page 3003; Mineralogical Magazine, 77, 2997 - 3005.

Fluornatropyrochlor, a new Pyrochlore Supergroup Mineral from the Boziguoer Rare Earth element Deposit, Baicheng County, Akesu, Xinjang, China - Canadian Mineralogist 2015 (canmin.1500007; published ahead of print November 23, 2015)

IMA group assignments

Varieties

Natropyrochlore

Synonym für Fluornatropyrochlor oder Oxynatropyrochlor

Other languages

German

Fluornatropyrochlor

English

Fluornatropyrochlore

Russian

Фторнатропирохлор

CNMNC (IMA)-Number

IMA 2013-056

CNMNC symbol

Symbol

Fnpcl

Locations with GPS information

IDs

GUSID (Global unique identifier short form) V1zKzdvh1EyBI8k7tTdWZQ
GUID (Global unique identifier) CDCA5C57-E1DB-4CD4-8123-C93BB5375665
Database ID 7049