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Fluorcalcioroméite

Pictures (2 Images total)

verm. Mixtur aus Fluorcalcioroméit und Fluorplumboromeit
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1289134747
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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
Collection: Stefan, Collection number: 30zbAb5VjECIBuYpO4zIhg
Location: Spanien/Andalusien (Andalucía)/Almería, Provinz/Cuevas de Almanzora/Las Herrerías/Roza de Santa Matilde
Mineral: Fluorcalcioroméite
Image: 1289134747
Rating: 8.5 (votes: 2)
License: Usage for Mineralienatlas project only
verm. Mixtur aus Fluorcalcioroméit und Fluorplumboromeit (SNr: 30zbAb5VjECIBuYpO4zIhg)

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)
Collection: Stefan
Copyright: Stefan
Contribution: Stefan 2010-11-07
Locality: Roza de Santa Matilde / Las Herrerías / Cuevas de Almanzora / Almería, Provinz / Andalusien (Andalucía) / Spanien
Fluorcalcioromeit xx mit Tilasit xx
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Fluorcalcioromeit xx mit Tilasit xx
Grube Starlera,Val Ferrera/Graubünden,Schweiz; Größe 2 x 2 cm
Copyright: Haubi; Contribution: Haubi
Collection: Haubi
Location: Schweiz/Graubünden, Kanton/Viamala, Region/Ferrera/Innerferrera/Val Starlera/Grube Starlera
Mineral: Fluorcalcioroméite, Tilasite
Image: 1379778893
License: Usage for Mineralienatlas project only
Fluorcalcioromeit xx mit Tilasit xx

Grube Starlera,Val Ferrera/Graubünden,Schweiz; Größe 2 x 2 cm
Collection: Haubi
Copyright: Haubi
Contribution: Haubi 2013-09-21
Locality: Grube Starlera / Val Starlera / Innerferrera / Ferrera / Viamala, Region / Graubünden, Kanton / Schweiz

You find additional specimen at the Geolitho Museum

Collectors Summary

Color orange, gelblich, weißlich
Lustre Harzglanz, Glasglanz
Hardness (Mohs) 5.5
Cleavages keine beobachtet
Fracture muschelig
Solubility - Säuren
Crystal System kubisch, Fd3m

Chemism

Chemical formula

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

Empirical formula (analysis)

(Ca1.16Na0.56☐0.22Fe2+0.03Mn2+0.03)Σ2.00(Sb5+1.98Al0.01W0.01)Σ2.00O6[F0.62(OH)0.28O0.06☐0.04]Σ1.00

Chemical composition

Antimon, Calcium, Natrium, Fluor, Sauerstoff, Wasserstoff

Unit weight: 419.3795575686 u; Number of atoms in the formula: 11.28

Info

Empirical formula:

(Ca1.16Na0.56Vc0.22Fe0.03Mn0.03)(Sb1.98Al0.01W0.01)O6[F0.62(OH)0.28O0.06Vc0.04]

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Vacancy

Vc

0.00

0.26

2.30

0.0000000

0.0000000
Hydrogen

H

0.07

0.28

2.48

1.0079470

0.2822252
Oxygen

O

24.19

6.34

56.21

15.9994300

101.4363862
Fluorine

F

2.81

0.62

5.50

18.9984033

11.7790100
Sodium

Na

3.07

0.56

4.96

22.9897702

12.8742713
Aluminium

Al

0.06

0.01

0.09

26.9815382

0.2698154
Calcium

Ca

11.09

1.16

10.28

40.0784000

46.4909440
Manganese

Mn

0.39

0.03

0.27

54.9380499

1.6481415
Iron

Fe

0.40

0.03

0.27

55.8452000

1.6753560
Antimony

Sb

57.49

1.98

17.55

121.7601000

241.0849980
Tungsten

W

0.44

0.01

0.09

183.8410000

1.8384100

Analysis wt%

Na2O : 4.11, CaO : 15.41, MnO : 0.54, CuO : 0.01, ZnO : 0.01, PbO : 0.02, Al2O3 : 0.10, FeO : 0.50, Y2O3 : 0.07, SiO2 : 0.04, TiO2 : 0.01, UO2 : 0.01, Sb2O5 : 76.18, WO3 : 0.78, F : 2.79, H2O : 0.59, O = F : -1.17, Total : 100.00

Strunz 9th edition incl. updates

4.DH.15d

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
15d:

Lapis Classification

IV/C.16-042

IV: OXIDE
C: Oxide mit Verhältnis Metall : Sauerstoff = 2:3 (M2O3 und verwandte Verbindungen)
16: Pyrochlor-Gruppe; ROMEIT-Untergruppe [Sb ± Ti]

Classification by Hölzel

4.CK.120

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

IMA status

anerkannt (2010) - The Canadian Mineralogist Vol. 48, pp. 673-698 (2010), erneut CNMNC Newsletter No. 16, August 2013

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

 Pyrochlore supergroup  ⇒ Roméite group

Optical Properties

Color

orange, gelblich, weißlich

Diaphaneity (Transparency)

durchscheinend

Lustre

Harzglanz, Glasglanz

max. Birefringence

keine - isotropisch

RI value α / ω / n

ncalc. = 1.826

2V angle

Isotropisch

Optical Data Luminescence

Luminescence

keine Fluoreszenz unter UV

Crystallography

Crystal System

kubisch

Class (H-M)

m3m

Space Group number

227

Space Group

Fd3m

Cell parameters a (Å)

10.2987

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)

1092.313

Crystal structure

Struktur bestimmt

X-Ray Powder Diffraction

5.946(100), 3.105(29), 2.973(77), 2.102(11), 1.982(15), 1.821(54), 1.553(29), 1.442(11)
XRD chart Fluorcalcioroméite

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)

5.5

VHN (Hardness Vickers)

730 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

5.113 (berechnet)

5.1 ( ρ calc. Mineralienatlas )

Cleavages

keine beobachtet

Fracture

muschelig

Tenacity

spröde

Instability

- Säuren

(Co-)Type locality

(Co-)Type locality

Schweiz/Graubünden, Kanton/Viamala, Region/Ferrera/Innerferrera/Val Starlera/Grube Starlera

Type material

Museo Regionale Di Scienze Naturali, Sezione di Mineralogia, Petrografia e Geologia, Torino, Italien

Cotyp: RRUFF project

Collection number of type material

M/15925 (Italien), R120140 (RRuff)

Preface

Author (Name, Year)

Daniel Atencio, Marco E. Ciriotti and Marcelo B. Andrade (2012)

References

The Pyrochlore Supergroup of Minerals: Nomenclature; The Canadian Mineralogist Vol. 48, pp. 673-698 (2010) http://pubsites.uws.edu.au/ima-cnmnc/Atencio%20et%20al%20pyrochlore%20nomenclature.pdf

Atencio, D., Ciriotti, M.E. and Andrade, M.B. (2013) Fluorcalcioroméite, IMA 2012-093. CNMNC Newsletter No. 16, August 2013, page 2698; Mineralogical Magazine, 77, 2695-2709.

Atencio, D., Ciriotti, M. E. & Andrade, M. B. - Fluorcalcioroméite, (Ca,Na)2Sb5+2(O,OH)6F, a new roméite-group mineral from Starlera mine, Ferrera, Grischun, Switzerland: description and crystal structure. Mineralogical Magazine, 77 (2013), 467-473

IMA group assignments

Other languages

German

Fluorcalcioroméit

English

Fluorcalcioroméite

CNMNC (IMA)-Number

IMA 2012-093

CNMNC symbol

Symbol

Fcrm

Locations with GPS information

IDs

GUSID (Global unique identifier short form) dHlFrG9E4E-EQEy2i0g4Ew
GUID (Global unique identifier) AC457974-446F-4FE0-8440-4CB68B483813
Database ID 7204