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Hydrokenomicrolite

Additional Functions

Collectors Summary

Crystal System kubisch, Fd3m

Chemism

Chem­ical formula

(◻,H2O)2Ta2(O,OH)6(H2O)

Chem­ical com­po­si­tion

Tantal, Sauerstoff, Wasserstoff

Unit weight: 495.4349685 u; Number of atoms in the formula: 15.5

Info

Empirical formula:

(◻,H2O)2Ta2(O0.75(OH)0.25)6(H2O)

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

1.12

5.5

35.48

1.0079470

5.5437085
Oxygen

O

25.83

8

51.61

15.9994300

127.9954400
Tantalum

Ta

73.05

2

12.90

180.9479100

361.8958200

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.13-106

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

Clas­sifica­tion by Hölzel

4.CI.960

4: OXIDES
C: R2O3 Sesquioxides
I: Microlite-Group, Ta-dominant on the B-site

IMA sta­tus

anerkannt (2010) - The Canadian Mineralogist Vol. 48, pp. 673-698 (2010); anerkannt - Februar 2012 - CNMNC Newsletter No. 13, June 2012, page 808; Mineralogical Magazine, 76, 807-817

Min­eral sta­tus

anerkanntes Mineral

IMA Classification

IMA Clas­sifica­tion

 Pyrochlore supergroup  ⇒ Microlite group

Crystallography

Crystal Sys­tem

kubisch

Class (H-M)

m3m

Space Group number

227

Space Group

Fd3m

Cell param­e­ters a (Å)

10.573

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)

1181.938

Kristall struc­ture

Struktur bestimmt

X-Ray Pow­der Diffrac­tion

6.112(86), 3.191(52), 3.052(100), 2.642(28), 2.035(11), 1.869(29), 1.788(10), 1.594(24)
XRD chart Hydrokenomicrolite

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

Polytypes

Parabariomicrolite

BaTa4O10(OH)2·2H2O

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Density (g/cm³)

5.568 ( ρ calc. Mineralienatlas )

(Co-)Type locality

(Co-)Type locality

Brasilien/Südosten (Região Sudeste)/Minas Gerais/Nazareno/Volta Grande Pegmatit

Type mate­r­ial

Museu de Geociências, Instituto de Geociências, Universidade de São Paulo, São Paulo, Brazil

Col­lec­tion number of type mate­r­ial

DR725

Preface

Author (Name, Year)

Marcelo B. Andrade, Daniel Atencio, Nikita V. Chukanov and Javier Ellena (2012)

References

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

CNMNC Newsletter No. 13, June 2012, page 808; Mineralogical Magazine, 76, 807-817

Bull. mineral.-petrolog. Odd. Nár. Muz. (Praha) 19/2, 2011. ISSN 1211-0329 (print); 1804-6495 http://www.academia.edu/2780876/Mineral_inclusions_in_beryl_feldspars_and_quartz_from_the_Moravany_nad_Vahom_Striebornica_granitic_pegmatite_Povazsky_Inovec_Mts._western_Slovakia_composition_and_genetic_aspects

IMA group assignments

 
Pyrochlore supergroup
A2-mD2X6-wZ1-n
 
 

 
 
Microlite group
(Na,Ca)2Ta2O6(O,OH,F)
kubisch
Fd3m

 
 
 
Fluorcalciomicrolite
(Ca,Na)2Ta2(O,OH)6F
kubisch
Fd3m

 
 
 
Fluornatromicrolite
(Na,Ca,Bi)2(Ta,Nb)2O6F
kubisch
Fd3m

 
 
 
Hydrokenomicrolite
(◻,H2O)2Ta2(O,OH)6(H2O)
kubisch
Fd3m

 
 
 
Hydromicrolite
(H2O,◻)2Ta2(O,OH)6(H2O)
 
 

 
 
 
Hydroxycalciomicrolite
Ca1.5Ta2O6(OH)
kubisch
P4332

 
 
 
Hydroxykenomicrolite
(◻,Na,Sb3+)2Ta2O6(OH)
kubisch
Fd3m

 
 
 
Kenoplumbomicrolite
(Pb,◻)2Ta 2O6(◻,O,OH)
kubisch
Fd3m

 
 
 
Oxybismutomicrolite
(Bi1.33☐0.67)Σ2Ta2O6O
kubisch
Fd3m

 
 
 
Oxycalciomicrolite
Ca2Ta2O7
kubisch
Fd3m

 
 
 
Oxynatromicrolite
(Na,Ca,U)2(Ta,Nb)2O6(O,F)
kubisch
Fd3m

 
 
 
Oxystannomicrolite
Sn2Ta2O6O
kubisch
Fd3m

 
 
 
Oxystibiomicrolite
(Sb3+,Ca)2Ta2O6O
 
 

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Actuality: 19. May 2022 - 20:07:13

Other languages

English

Hydrokenomicrolite

German

Hydrokenomikrolith

Russian

Гидрокеномикролит

CNMNC (IMA)-Number

IMA 2011-103

CNMNC symbol

Symbol

Hkmic

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