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Roméite group (Roméit-Gruppe)

Pictures (158 Images total)

Oxyplumboroméit
Views (Image: 1379844239): 4384, Rating: 9.57
Oxyplumboroméit

Kristallgröße: 1 mm. Fundort: Genna Zinkhütte, Iserlohn-Letmathe, Sauerland, Nordrhein-Westfalen, Deutschland

Copyright: Enrico Bonacina
Contribution: Hg 2013-09-22
Locality: Genna Zinkhütte / Letmathe / Iserlohn / Märkischer Kreis / Arnsberg, Bezirk / Nordrhein-Westfalen / Deutschland
Oxyplumboromeit
Views (Image: 1526242023): 2068
Oxyplumboromeit

BB-6,1 mm ursprünglich Bindheimit Ex Dieter Steh; Deutschland/Nordrhein-Westfalen/Arnsberg, Bezirk/Märkischer Kreis/Iserlohn/Letmathe/Genna Zinkhütte

Collection: anatase2
Copyright: Hannes Osterhammer
Contribution: anatase2 2018-05-13
Locality: Genna Zinkhütte / Letmathe / Iserlohn / Märkischer Kreis / Arnsberg, Bezirk / Nordrhein-Westfalen / Deutschland
Oxyplumboroméit, Azurit, Malachit, Quarz
Views (Image: 1443279411): 3325, Rating: 9.43
Oxyplumboroméit, Azurit, Malachit, Quarz

Bildbreite: 4,5 mm, Fundort: Mas Dieu, Mercoirol, Gard, Languedoc-Roussillon, Frankreich

Copyright: Frédéric Hède (Gluon)
Contribution: Hg 2015-09-26
Locality: Mas Dieu / Mercoirol / Laval-Pradel / Alès, Arrondissement / Gard, Département / Okzitanien (Occitanie), Region / Frankreich
verm. Mixtur aus Fluorcalcioroméit und Fluorplumboromeit
Views (Image: 1289134747): 1292
verm. Mixtur aus Fluorcalcioroméit und Fluorplumboromeit

Weißes bis gelbliches Mineral, teilweise in "schaumig" wirkenden Krusten oder wie hier als stengeliges Aggregat von Roza de Santa Matilde, Almeria Spanien; Bildbreite < 1mm (nicht analysiert)

Copyright: Stefan
Contribution: Stefan 2010-11-07
Locality: Roza de Santa Matilde / Las Herrerías / Cuevas de Almanzora / Almería, Provinz / Andalusien (Andalucía) / Spanien
Stibiconit
Views (Image: 1417468432): 2451
Stibiconit (SNr: 0390)

psm. nach Stibnit, mit Schwefel; Größe: 14,0 x 11,5 x 7,5 cm; Fundort: Xikuangshan Sb-Lagerstätte, Kreis Lengshuijiang, Präfektur Loudi, Provinz Hunan, China

Collection: slugslayer
Copyright: slugslayer
Contribution: slugslayer 2014-12-01
Locality: Xikuangshan Sb-Lagerstätte / Lengshuijiang, Kreis / Loudi, Präfektur / Hunan, Provinz / China
Stibiconit
Views (Image: 1439718002): 650
Stibiconit

Stibiconit (Var. Roméit-Gruppe) pseudomorph nach Stibnit, San José Mine, Wadley, Municipio Catorce, San Luis Potosi, Mexico, 50 x 25 x 15 mm

Collection: Embarak
Copyright: Embarak
Contribution: Embarak 2015-08-16
Locality: San José Mine / Wadley / Catorce, Municipio / San Luis Potosi / Mexiko

Collectors Summary

Color gelbbraun
Streak color blassgelb
Hardness (Mohs) 5.50 - 6.00
Cleavages undeutlich
Crystal System kubisch, Fd3m

Additional information / Summary

Die bisher als Roméit beschriebenen Mineralien sind entweder Fluornatroroméit, Fluorcalcioroméit oder Oxycalcioroméit

Chemism

Chem­ical formula

(Ca,Fe2+,Mn,Na)2(Sb,Ti)2O6(O,OH,F)

Chem­ical com­po­si­tion

Antimon, Calcium, Eisen, Mangan, Natrium, Titan, Fluor, Sauerstoff, Wasserstoff

Unit weight: 410.051938425 u; Number of atoms in the formula: 11.3

Info

Empirical formula:

(Ca0.55Fe0.3Mn0.1Na0.05)2(Sb0.75Ti0.25)2O6(O0.6(OH)0.3F0.1)

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

0.07

0.3

2.65

1.0079470

0.3023841

Oxygen

O

26.92

6.9

61.06

15.9994300

110.3960670

Fluorine

F

0.46

0.1

0.88

18.9984033

1.8998403

Sodium

Na

0.56

0.1

0.88

22.9897702

2.2989770

Calcium

Ca

10.75

1.1

9.73

40.0784000

44.0862400

Titanium

Ti

5.84

0.5

4.42

47.8671000

23.9335500

Manganese

Mn

2.68

0.2

1.77

54.9380499

10.9876100

Iron

Fe

8.17

0.6

5.31

55.8452000

33.5071200

Antimony

Sb

44.54

1.5

13.27

121.7601000

182.6401500

Clas­sifica­tion by Hölzel

4.CK.

4: OXIDES
C: R2O3 Sesquioxides
K: Romeite-Group, Sb-dominant on the B-site

IMA sta­tus

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

Min­eral sta­tus

Reihe/Gruppe/Serie/Folge

IMA Classification

IMA Clas­sifica­tion

Pyrochlore supergroup

Optical Properties

Color

gelbbraun

Streak color

blassgelb

Image ⇒ Raman spectrum (1 Images total)

Fluornatroroméit
Views (Image: 1581856382): 205
Fluornatroroméit  E
Analysed with energy dispersive X-ray spectroscopy EDX

bräunliche Aggregate von Fluornatroroméit neben gelblichen Nadorit und grauem Hedyphan, Långban, Schweden; BB < 1 mm, analysiert mittels REM-EDX und RAMAN

Copyright: Joy Desor
Contribution: openpit 2020-02-16
Locality: Långban, Distrikt / Filipstad, Gemeinde / Värmland, Provinz / Schweden

Crystallography

Crystal Sys­tem

kubisch

Class (H-M)

m3m

Space Group number

227

Space Group

Fd3m

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

X-Ray Pow­der Diffrac­tion

5.92(60),
3.10(50),
2.971(100),
1.819(70),
1.550(80),
1.180(30),
1.150(30),
1.049(30)

XRD chart Roméite group

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

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Hard­ness (Mohs)

5.50 - 6.00

Cleav­ages

undeutlich

Preface

Author (Name, Year)

Damour, 1841

References

Handbook of Mineralogy (Anthony et al.), 3 (1997), 479

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

Ferdinando Bosi, Andrew G. Christy and Ulf Hålenius: Crystal-chemical aspects of the roméite group, A2Sb2O6Y, of the pyrochlore supergroup. Mineralogical Magazine Vol. 81, Nr. 6 (2017) S.1287-1302.

IMA group assignments

 
A2-mD2X6-wZ1-n
 
 

 
 
 
 
 

 
 
 
Ca2(Ti,Nb)2O6O
 
 

 
 
 
(U,Ca,◻)2 (Ti,Nb)2O6O
 
 


 
 
 
WO3·0.5H2O
kubisch
Fd3m

 
 
 
(Pb,☐)2(W,Fe3+)2O6(H2O)
kubisch
Fd3m

 
 
 
(☐,Pb)2(W,Fe3+,Al)2(O,OH)6(OH)
trigonal
R3

 
 
CaNa3AlMg3F14
trigonal
R3m

 
 
NaxMgxAl2-x(F,OH)6·H2O
kubisch
Fd3m

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

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

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

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

 
 
 
(H2O,◻)2Ta2(O,OH)6(H2O)
 
 

 
 
 
Ca1.5Ta2O6(OH)
kubisch
P4332

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

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

 
 
 
(Bi1.33☐0.67)Σ2Ta2O6O
kubisch
Fd3m

 
 
 
Ca2Ta2O7
kubisch
Fd3m

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

 
 
 
Sn2Ta2O6O
kubisch
Fd3m

 
 
 
(Sb3+,Ca)2Ta2O6O
 
 

 
 
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
 
 

 
 
(Ca,Fe2+,Mn,Na)2(Sb,Ti)2O6(O,OH,F)
kubisch
Fd3m

 
 
 
(Ca,Na)2Sb5+2O6(F,OH)
kubisch
Fd3m

 
 
 
(Na,Ca)2Sb2(O,OH)6F
 
 

 
 
 
(Ca,Sb3+)2(Sb5+,Ti4+)2O6(OH)
kubisch
Fd3m

 
 
 
(Fe2+1.50.5)Sb5+2O6(OH)
kubisch
Fd3m

 
 
 
Ca2Sb2O6O
kubisch
Fd3m

 
 
 
Pb2Sb5+2O7
kubisch
Fd3m

 
 
 
Sb3+Sb5+2O6(OH)
kubisch
Fd3m

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Actuality: 22. May 2022 - 21:37:24

Varieties

Monimolite

Stetefeldtite

Stibiconite

Other languages

German

Roméit-Gruppe

English

Roméite group

French

Roméite groupe

Spanish

Roméíta

Russian

Ромеит

Alternative Name

French

Roméine

German

Roméit

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

German pages

DeWikiPedia - search for: Roméit-Gruppe
Google-Bilder-Suche - search for: Roméit-Gruppe
Mineralienatlas.de (Forum) - search for: Roméit-Gruppe

English pages

Mindat - search for: Roméite group
Webmineral - search for:Roméite group
Handbook-of-Mineralogy - search for: Roméite group
RRUFF - Raman, XRD and other mineral data - search for: Roméite group
RRUFF - References and PDF downloads - search for: Roméite group
American-Mineralogist-Crystal-Structure-Database - search for: Roméite group
Strahlen.org - search for: Roméite group

Russian pages

Webmineral.ru - search for: Ромеит

Mineral Dealer

German pages

hausen - Mineralgroßhandel - search for: Roméit-Gruppe
Crystal-Treasure.com - search for: Roméit-Gruppe
Bosse - search for: Roméit-Gruppe
Edelsteine Neuburg - Gundolf Fischer - search for: Roméit-Gruppe

Locations with GPS information