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Hydrokenopyrochlore (Hydrokenopyrochlor)

Collectors Summary

Crystal System kubisch, Fd3m

Chemism

Chemical formula

2Nb2O4(OH)2(H2O)

Chemical composition

Niob, Sauerstoff, Wasserstoff, Vakanz

Unit weight: 301.84056202 u; Number of atoms in the formula: 15

Info

Empirical formula:

Vc2Nb2O4(OH)2(H2O)

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Vacancy

Vc

0.00

2

13.33

0.0000000

0.0000000

Hydrogen

H

1.34

4

26.67

1.0079470

4.0317880

Oxygen

O

37.10

7

46.67

15.9994300

111.9960100

Niobium

Nb

61.56

2

13.33

92.9063820

185.8127640

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

IMA status

anerkannt - CNMNC Newsletter 37 (2017)

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

Pyrochlore supergroup  ⇒ Pyrochlore group

Crystallography

Crystal System

kubisch

Class (H-M)

m3m

Space Group number

227

Space Group

Fd3m

Cell parameters a (Å)

10.4887(8)

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°

Volume (ų)

1153.892

Crystal structure

Pyrochlor-Supergruppe; Struktur bestimmt

X-Ray Powder Diffraction

3.677(w),
3.136(s),
3.006(s),
2.598(w),
2.010(ms),
1.846(s),
1.588(ms),
1.509(m)

Crystals 3D

Open larger view

(Co-)Type locality

(Co-)Type locality

Madagaskar/Vàkinankàratra, Region/Sahatany-Pegmatitfeld/Manandona-Tal/Antandrokomby-Pegmatit

Type material

Musée cantonal de Géologie, University of Lausanne, Anthropole-Dorigny, CH-1015 Lausanne, Switzerland, Katalognummern: MGL 080141 und 080142

Museo di Storia Naturale, Università di Pisa, Via Roma 79, Calci (PI), Italy, Katalognummer: 19905

Preface

Author (Name, Year)

Cristian Biagioni, Reto Gieré, Nicolas Meisser, Fabrizio Nestola, Marco Pasero, Martin Robyr, Philippe Roth and Cédric Schnyder (2017)

References

Biagioni, C., Gieré, R.,Meisser, N., Nestola, F., Pasero, M., Robyr, M., Roth, P. and Schnyder, C. (2017) Hydrokenopyrochlore, IMA 2017-005. CNMNC Newsletter No. 37, June 2017, page 739; Mineralogical Magazine, 81, 737–742

IMA group assignments

Other languages

German

Hydrokenopyrochlor

English

Hydrokenopyrochlore

CNMNC (IMA)-Number

IMA 2017-005

CNMNC symbol

Symbol

Hkpcl

Locations with GPS information

IDs

GUSID (Global unique identifier short form) 7K7OIE1aak-JP0Q2nxHRFA
GUID (Global unique identifier) 20CEAEEC-5A4D-4F6A-893F-44369F11D114
Database ID 8344