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Hydropyrochlore

Pictures (3 Images total)

Kalipyrochlor
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Kalipyrochlor
Größe ca. 5 mm
Copyright: berthold; Contribution: Mineralienatlas
Mineral: Hydropyrochlore
Image: 1103455525
License: Usage for Mineralienatlas project only
Kalipyrochlor

Größe ca. 5 mm

Copyright: berthold
Contribution: Mineralienatlas 2004-12-19
Kalipyrochlor
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Kalipyrochlor
Demokratische Republik Kongo/Nord-Kivu, Provinz/Lueshe. Bildbreite 3 mm
Copyright: Ulrich Baumgärtl; Contribution: Ulrich Baumgärtl
Collection: Ulrich Baumgärtl
Location: Demokratische Republik Kongo/Nord-Kivu, Provinz/Lueshe
Mineral: Hydropyrochlore
Image: 1598343165
License: Usage for Mineralienatlas project only
Kalipyrochlor

Demokratische Republik Kongo/Nord-Kivu, Provinz/Lueshe. Bildbreite 3 mm

Collection: Ulrich Baumgärtl
Copyright: Ulrich Baumgärtl
Contribution: Ulrich Baumgärtl 2020-08-25
Locality: Lueshe / Nord-Kivu, Provinz / Demokratische Republik Kongo
Kalipyrochlor
Views (File:
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Kalipyrochlor
Demokratische Republik Kongo/Nord-Kivu, Provinz/Lueshe. Bildbreite 3mm
Copyright: Ulrich Baumgärtl; Contribution: Ulrich Baumgärtl
Collection: Ulrich Baumgärtl
Location: Demokratische Republik Kongo/Nord-Kivu, Provinz/Lueshe
Mineral: Hydropyrochlore
Image: 1598343326
License: Usage for Mineralienatlas project only
Kalipyrochlor

Demokratische Republik Kongo/Nord-Kivu, Provinz/Lueshe. Bildbreite 3mm

Collection: Ulrich Baumgärtl
Copyright: Ulrich Baumgärtl
Contribution: Ulrich Baumgärtl 2020-08-25
Locality: Lueshe / Nord-Kivu, Provinz / Demokratische Republik Kongo

Collectors Summary

Color grün
Streak color grauweiß
Crystal System kubisch, Fd3m

Chemism

Chemical formula

(H2O,☐)2Nb2(O,OH)6(H2O)

Additional chem. information

Pyrochlor-Supergruppe

Chemical composition

Niob, Sauerstoff, Wasserstoff, Vakanz

Unit weight: 328.359574505 u; Number of atoms in the formula: 17.5

Info

Empirical formula:

((H2O)0.75Vc0.25)2Nb2(O0.75(OH)0.25)6(H2O)

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Vacancy

Vc

0.00

0.5

2.86

0.0000000

0.0000000

Hydrogen

H

2.00

6.5

37.14

1.0079470

6.5516555

Oxygen

O

41.42

8.5

48.57

15.9994300

135.9951550

Niobium

Nb

56.59

2

11.43

92.9063820

185.8127640

Analysis wt%

K2O : 2.12, SrO : 1.75, TiO2 : 5.01, Nb2O5 : 75.69, H2O : 16.05 (Ref: Canadian Mineralogist 94)

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.12-096

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.961

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

Dana 8th edition

08.02.01.02

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

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

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

Pyrochlore supergroup  ⇒ Pyrochlore group

Optical Properties

Color

grün

Streak color

grauweiß

Diaphaneity (Transparency)

durchscheinend bis opak

RI value α / ω / n

1.96

Ri mean

1.96

2V angle

Isotropisch

Crystallography

Crystal System

kubisch

Class (H-M)

m3m

Space Group number

227

Space Group

Fd3m

Cell parameters a (Å)

10.603

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)

1192.028

X-Ray Powder Diffraction

6.10(70),
3.188(60),
3.052(100),
2.643(10),
2.035(20),
1.869(40),
1.786(20),
1.593(30)

XRD chart Hydropyrochlore

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

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Density (g/cm³)

3.4 - 3.48 / Durchschnittlich = 3.44

3.659 ( ρ calc. Mineralienatlas )

(Co-)Type locality

(Co-)Type locality

Demokratische Republik Kongo/Nord-Kivu, Provinz/Lueshe

Preface

Author (Name, Year)

Hogarth, 1977

IMA group assignments

 
A2-mD2X6-wZ1-n
 
 

 
 
A2Nb2(O,OH)6Z
kubisch
Fd3m

 
 
 
☐Nb2(O,OH)6Cs1−x {x ∼ 0.20}
kubisch
Fd3m

 
 
 
(Ca,Na)2(Nb,Ti)2O6F
kubisch
Fd3m

 
 
 
(☐,Na,Ce,Ca)2(Nb,Ti)2O6F
 
 

 
 
 
(Na,Pb,Ca,REE,U)2Nb2O6F
kubisch
Fd3m

 
 
 
(Sr,☐)2Nb2(O,OH)6F
 
 

 
 
 
2Nb2O4(OH)2(H2O)
kubisch
Fd3m

 
 
 
(H2O,☐)2Nb2(O,OH)6(H2O)
kubisch
Fd3m

 
 
 
(Ca,Na,U,☐)2(Nb,Ti)2O6(OH)
kubisch
Fd3m

 
 
 
(☐,Ce,Ba)2(Nb,Ti)2O6(OH,F)
kubisch
Fd3m

 
 
 
(Mn,Th,Na,Ca,REE)2(Nb,Ti)2O6(OH)
kubisch
Fd3m

 
 
 
(Na,Сa,Ce)2Nb2O6(OH)
kubisch
Fd3m

 
 
 
(Pb1.50.5)Nb2O6(OH)
kubisch
Fd3m

 
 
 
(Pb,☐)Nb2 O6(☐,O)
 
 

 
 
 
Ca2Nb2O6O
 
 

 
 
 
(Na,Ca,U)2Nb2O6(O,OH)
 
 

 
 
 
Pb2Nb2O6O
 
 

 
 
 
(Y,☐) 2Nb2O6O
 
 

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Actuality: 01. Mar 2024 - 03:14:00

Other languages

Spanish

Calipirocloro

German

Hydropyrochlor

English

Hydropyrochlore

Russian

Гидропирохлор

Alternative Name

German

Kalipyrochlor

French

Kalipyrochlore

English

Kalipyrochlore

English

Kalipyrochlore (of Hogarth 1977)

Russian

Калипирохлор

CNMNC symbol

Symbol

Hpcl

Locations with GPS information

IDs

GUSID (Global unique identifier short form) YsrhzXQ26EiJT8--OYP3ng
GUID (Global unique identifier) CDE1CA62-3674-48E8-894F-CFBE3983F79E
Database ID 1847