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Oxynatromicrolite

Collectors Summary

Crystal System kubisch, Fd3m

Chemism

Chem­ical formula

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

Chem­ical com­po­si­tion

Calcium, Natrium, Niob, Tantal, Fluor, Sauerstoff, Uran

Unit weight: 529.8613561525 u; Number of atoms in the formula: 11

Info

Empirical formula:

(Na0.6Ca0.3U0.1)2(Ta0.75Nb0.25)2O6(O0.75F0.25)

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Oxygen

O

20.38

6.75

61.36

15.9994300

107.9961525
Fluorine

F

0.90

0.25

2.27

18.9984033

4.7496008
Sodium

Na

5.21

1.2

10.91

22.9897702

27.5877242
Calcium

Ca

4.54

0.6

5.45

40.0784000

24.0470400
Niobium

Nb

8.77

0.5

4.55

92.9063820

46.4531910
Tantalum

Ta

51.23

1.5

13.64

180.9479100

271.4218650
Uranium

U

8.98

0.2

1.82

238.0289130

47.6057826

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.13-014

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

IMA sta­tus

anerkannt - CNMNC Newsletter No. 17, October 2013

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)

10.420

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°

Volumne (ų)

1131.366

X-Ray Pow­der Diffrac­tion

6.149(40),
3.026(100),
2.617(25),
2.009(10),
1.844(35),
1.571(30),
1.503(10),
1.196(15)
XRD chart Oxynatromicrolite

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

Crystals 3D

Open larger view

(Co-)Type locality

(Co-)Type locality

China/Henan, Provinz/Sanmenxia, Präfektur/Lushi, Kreis/Guanpo/Guanpo Pegmatitfeld/No. 309 Pegmatit-Gang

Type mate­r­ial

Geological Museum of China, Beijing, China

Col­lec­tion number of type mate­r­ial

M11940

Preface

Author (Name, Year)

Fan Guang, Ge Xiangkun, Li Guowu, Yu Apeng und Shen Ganfu (2013)

References

Fan Guang, Ge Xiangkun, Li Guowu, Yu Apeng und Shen Ganfu (2013) Oxynatromicrolite, IMA 2013-063. CNMNC Newsletter No. 17, October 2013, page 3004; Mineralogical Magazine, 77, 2997 - 3005

IMA group assignments

Other languages

English

Oxynatromicrolite

German

Oxynatromikrolith

CNMNC (IMA)-Number

IMA 2013-063

CNMNC symbol

Symbol

Onmic

Automatic Links to external internet sources (Responsibility is with the operator)

German pages

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Mineralienatlas.de (Forum) - search for: Oxynatromikrolith

English pages

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RRUFF - Raman, XRD and other mineral data - search for: Oxynatromicrolite
RRUFF - References and PDF downloads - search for: Oxynatromicrolite
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Mineral Dealer

German pages

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Locations with GPS information