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Fluoro-taramite (Fluoroaluminomagnesiotaramite)

Additional Functions

Collectors Summary

Color bläulichgrün
Lustre Glasglanz
Cleavages undeutlich nach {110}
Crystal System monoklin, C2/m

Chemism

Chem­ical formula

Na(CaNa)(Mg3Al2)(Si6Al2)O22F2

Addi­tional chem. informa­tion

A Position: Na dominant
C2+ Position: Mg dominant
C3+ Position: Al dominant
W Position: F dominant

Chem­ical com­po­si­tion

Aluminium, Calcium, Magnesium, Natrium, Silicium, Fluor, Sauerstoff

Unit weight: 825.3967197 u; Number of atoms in the formula: 40

Info

Empirical formula:

Na(CaNa)(Mg3Al2)(Si6Al2)O22F2

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Oxygen

O

42.64

22

55.00

15.9994300

351.9874600

Fluorine

F

4.60

2

5.00

18.9984033

37.9968065

Sodium

Na

5.57

2

5.00

22.9897702

45.9795404

Magnesium

Mg

8.83

3

7.50

24.3050600

72.9151800

Aluminium

Al

13.08

4

10.00

26.9815382

107.9261528

Silicon

Si

20.42

6

15.00

28.0855300

168.5131800

Calcium

Ca

4.86

1

2.50

40.0784000

40.0784000

Anal­y­sis wt%

SiO2 : 40.73, Al2O3 : 17.50, Fe2O3 : 6.12, FeO : 9.20, MgO : 9.66, CaO : 7.66, Na2O : 6.15, F : 2.22, H2O : 0.98 (Ref: American Mineralogist 2007)

Strunz 9th edi­tion incl. updates

9.DE.20

9: Silikate (Germanate)
D: Ketten- und Bandsilikate (Inosilikate)
E: Ketten- und Bandsilikate mit 2-periodischen Doppelketten, Si4O11; Amphibol-Familie, Klinoamphibole
20:

Lapis Clas­sifica­tion

VIII/F.09-062

VIII: SILIKATE
F: Ketten- und Bandsilikate
9: Zweierbänder [Si4O11] 6-; Amphibol-Gruppe; Na-Ca-Amphibole

Clas­sifica­tion by Hölzel

9.DI.535

9: SILICATES
D: Inosilicates; ~[Si2O6]4--...2-Chain
I: Amphiboles; Sodiccalcic Amphiboles
5: Taramite-Group

IMA sta­tus

anerkannt Sep. 2006

Min­eral sta­tus

anerkanntes Mineral

IMA Classification

IMA Clas­sifica­tion

Amphibole supergroup  ⇒ (OH,F,Cl)-dominant amphiboles  ⇒ Sodium-calcium amphiboles  ⇒ Taramite (Tar) amphiboles

Optical Properties

Color

bläulichgrün

Diaphane­ity (Trans­parency)

transparent

Lus­tre

Glasglanz

max. Birefrin­gence

0.013

Birefringence chart\! Fluoro-taramite title=Birefringence chart Fluoro-taramite

Michel-Levy Color Chart viewed according to the maximum birefringence (at 30μm). Mineral color is not taken into account. Click on the image to enlarge or change thickness.

RI value α / ω / n

1.627

RI value β

1.635

RI value γ / ε

1.641

Ri mean

1.634

2V angle

Biaxial (-) 66° (gemessen) 81 (berechnet)

Ori­enta­tion

Y = b, Z ^ c = 19°

Dis­per­sion

extrem, r << v

Absorp­tion

Z > Y > X

Pleochro­ism

X=farblos, Y=hellviolett, Z=blau

Crystallography

Crystal Sys­tem

monoklin

Class (H-M)

2/m

Space Group number

12

Space Group

C2/m

Cell param­e­ters a (Å)

9.7414

Cell param­e­ters b (Å)

17.9095

Cell param­e­ters c (Å)

5.3335

Cell param­e­ters a/b or c/a

0.544

Cell param­e­ters c/b

0.298

Cell param­e­ters α

90°

Cell param­e­ters β

104.672

Cell param­e­ters γ

90°

Z

2

Volumne (ų)

900.16

X-Ray Pow­der Diffrac­tion

8.340(82), 3.384(47), 3.094(67), 2.700(100), 2.583(54), 2.551(64), 2.321(39), 2.153(35)

XRD chart Fluoro-taramite

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

Crystal Structure 3D

Open larger view

Physical Properties

Density (g/cm³)

3.26 berechnet

3.045 ( ρ calc. Mineralienatlas )

Cleav­ages

undeutlich nach {110}

Tenac­ity

spröde

References

Fluoronyböite from Jianchang (Su-Lu, China) and nyböite from Nybö (Nordfjord, Norway): a petrological and crystal-chemical comparison of these two high-pressure amphiboles - Mineralogical Magazine (August 2003) 67 No. 4, 769-782.

Mineralien Welt 04/08, Steffen Jahn, Die neuen Mineralien 2007 - 2008

Oberti, R., Boiocchi, M., Smith, D.C. & Medenbach, O. (2007): Alumotaramite, alumino-magnesiotaramite, and fluoro-alumino-magnesiotaramite: Mineral data and crystal chemistry. American Mineralogist. 92: 1428-1435

Frank C. Hawthorne, Roberta Oberti, George E. Harlow, Walter V. Maresch, Robert F. Martin, John C. Schumacer, Mark D. Welch (2012): Nomenclature of the amphibole supergroup, American Mineralogist, Volume 97, pages 2031–2048

IMA group assignments

Related minerals "Strunz Classification" (9. Edition) [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

'Alumino-barroisite'

☐CaNaMg3Al2(Si7Al)O22(OH)2

monoklin : 2/m : C2/m

9.DE.20

'Alumino-ferro-barroisite'

☐CaNa(Fe2+)3Al2(Si7Al)O22(OH)2

monoklin : 2/m : C2/m

9.DE.20

'Alumino-ferrowinchite'

CaNaFe4AlSi8O22(OH)2

monoklin : 2/m : C2/m

9.DE.20

Barroisite

☐(NaCa)(Mg3Al2)(Si7Al)O22(OH)2

monoklin : 2/m : C2/m

9.DE.20

Ferri-barroisite

CaNa(Fe2+,Mg)3Fe3+2[AlSi7O22](OH)2

monoklin : 2/m : C2/m

9.DE.20

Ferri-ferro-barroisite

NaCa(Fe2+)3(Fe3+)2(Si7Al)O22(OH)2

monoklin : 2/m : C2/m

9.DE.20

Ferri-ghoseite

☐(NaMn2+)(Mg4Fe3+)Si8O22(OH)2

monoklin : 2/m : C2/m

9.DE.20

Ferri-taramite

Na(NaCa)(Mg3Fe3+2)(Si6Al2)O22(OH)2

monoklin : 2/m : C2/m

9.DE.20

Ferri-winchite

(☐,Na)(Na,Ca)2(Mg,Fe2+)4Fe3+[Si8O22](OH)2

9.DE.20

Ferro-barroisite

☐NaCa(Fe2+3Al2)(Si7Al)O22(OH)2

monoklin : 2/m : C2/m

9.DE.20

Ferro-ferri-katophorite

Na(NaCa)(Fe2+4Fe3+)(Si7Al)O22(OH)2

monoklin : 2/m : C2/m

9.DE.20

Ferro-ferri-taramite

Na(NaCa)(Fe2+3Fe3+2)(Si6Al2)O22(OH)2

monoklin : 2/m : C2/m

9.DE.20

'Ferro-ferriwinchite'

CaNaFe3Si8O22(OH)2

monoklin : 2/m : C2/m

9.DE.20

Ferro-katophorite

Na(NaCa)(Fe2+4Al)(Si7Al)O22(OH)2

monoklin : 2/m : C2/m

9.DE.20

Ferro-richterite

Na2Ca(Fe2+,Mg)5Si8O22(OH)2

monoklin : 2/m : C2/m

9.DE.20

Ferro-taramite

Na(CaNa)(Fe2+3Al2)(Si6Al2)O22(OH)2

monoklin : 2/m : C2/m

9.DE.20

Ferro-winchite

NaCa(Fe2+,Mg)4AlSi8O22(OH)2

monoklin : 2/m : C2/m

9.DE.20

Fluoro-richterite

Na(NaCa)Mg5Si8O22F2

monoklin : 2/m : C2/m

9.DE.20

Fluoro-taramite

Na(CaNa)(Mg3Al2)(Si6Al2)O22F2

monoklin : 2/m : C2/m

9.DE.20

'Magnesiotaramite'

Na2Ca(Mg3AlFe3+)(Si6Al2)O22(OH)2

monoklin : 2/m : C2/m

9.DE.20

Potassic-ferro-ferri-taramite

K(CaNa)(Fe2+3Fe3+2)(Si6Al2)O22(OH)2

monoklin : 2/m : C2/m

9.DE.20

Potassic-ferro-taramite

K(CaNa)(Fe2+3Al2)(Si6Al2)O22(OH)2

monoklin : 2/m : C/2m

9.DE.20

Potassic-fluoro-richterite

(K,Na)NaCaMg5Si8O22F2

monoklin : 2/m : C2/m

9.DE.20

Potassic-richterite

K(NaCa)Mg5Si8O22(OH)2

monoklin : 2/m : C2/m

9.DE.20

Richterite

Na2Ca(Mg,Fe2+)5Si8O22(OH)2

monoklin : 2/m : C2/m

9.DE.20

Taramite

Na(NaCa)(Mg3Al2)(Si6Al2)O22(OH)2

monoklin : 2/m : C2/m

9.DE.20

Winchite

☐NaCa(Mg,Fe2+)4AlSi8O22(OH)2

monoklin : 2/m : C2/m

9.DE.20

Related minerals "Lapis Classification" [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Potassic-fluoro-richterite

(K,Na)NaCaMg5Si8O22F2

monoklin : 2/m : C2/m

VIII/F.09-01

Richterite

Na2Ca(Mg,Fe2+)5Si8O22(OH)2

monoklin : 2/m : C2/m

VIII/F.09-010

Fluoro-richterite

Na(NaCa)Mg5Si8O22F2

monoklin : 2/m : C2/m

VIII/F.09-012

Potassic-richterite

K(NaCa)Mg5Si8O22(OH)2

monoklin : 2/m : C2/m

VIII/F.09-014

Ferro-richterite

Na2Ca(Fe2+,Mg)5Si8O22(OH)2

monoklin : 2/m : C2/m

VIII/F.09-020

Ferri-katophorite

Na(NaCa)(Mg4Fe3+)(Si7Al)O22(OH)2

VIII/F.09-040

Katophorite

Na(NaCa)(Mg4Al)(Si7Al)O22(OH)2

monoklin : 2/m : C2/m

VIII/F.09-050

Taramite

Na(NaCa)(Mg3Al2)(Si6Al2)O22(OH)2

monoklin : 2/m : C2/m

VIII/F.09-060

Fluoro-taramite

Na(CaNa)(Mg3Al2)(Si6Al2)O22F2

monoklin : 2/m : C2/m

VIII/F.09-062

Ferro-taramite

Na(CaNa)(Fe2+3Al2)(Si6Al2)O22(OH)2

monoklin : 2/m : C2/m

VIII/F.09-065

Potassic-ferro-taramite

K(CaNa)(Fe2+3Al2)(Si6Al2)O22(OH)2

monoklin : 2/m : C/2m

VIII/F.09-067

'Magnesiotaramite'

Na2Ca(Mg3AlFe3+)(Si6Al2)O22(OH)2

monoklin : 2/m : C2/m

VIII/F.09-070

Potassic-ferro-ferri-taramite

K(CaNa)(Fe2+3Fe3+2)(Si6Al2)O22(OH)2

monoklin : 2/m : C2/m

VIII/F.09-080

Ferro-ferri-taramite

Na(NaCa)(Fe2+3Fe3+2)(Si6Al2)O22(OH)2

monoklin : 2/m : C2/m

VIII/F.09-082

Ferri-ghoseite

☐(NaMn2+)(Mg4Fe3+)Si8O22(OH)2

monoklin : 2/m : C2/m

VIII/F.09-085

Winchite

☐NaCa(Mg,Fe2+)4AlSi8O22(OH)2

monoklin : 2/m : C2/m

VIII/F.09-090

Ferro-winchite

NaCa(Fe2+,Mg)4AlSi8O22(OH)2

monoklin : 2/m : C2/m

VIII/F.09-100

Ferri-winchite

(☐,Na)(Na,Ca)2(Mg,Fe2+)4Fe3+[Si8O22](OH)2

VIII/F.09-105

Barroisite

☐(NaCa)(Mg3Al2)(Si7Al)O22(OH)2

monoklin : 2/m : C2/m

VIII/F.09-110

Ferro-barroisite

☐NaCa(Fe2+3Al2)(Si7Al)O22(OH)2

monoklin : 2/m : C2/m

VIII/F.09-120

Related minerals "Hoelzel Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

'Magnesiotaramite'

Na2Ca(Mg3AlFe3+)(Si6Al2)O22(OH)2

monoklin : 2/m : C2/m

9.DI.500

Potassic-ferro-ferri-taramite

K(CaNa)(Fe2+3Fe3+2)(Si6Al2)O22(OH)2

monoklin : 2/m : C2/m

9.DI.510

Taramite

Na(NaCa)(Mg3Al2)(Si6Al2)O22(OH)2

monoklin : 2/m : C2/m

9.DI.530

Fluoro-taramite

Na(CaNa)(Mg3Al2)(Si6Al2)O22F2

monoklin : 2/m : C2/m

9.DI.535

Ferro-taramite

Na(CaNa)(Fe2+3Al2)(Si6Al2)O22(OH)2

monoklin : 2/m : C2/m

9.DI.540

Ferri-taramite

Na(NaCa)(Mg3Fe3+2)(Si6Al2)O22(OH)2

monoklin : 2/m : C2/m

9.DI.560

Ferro-ferri-taramite

Na(NaCa)(Fe2+3Fe3+2)(Si6Al2)O22(OH)2

monoklin : 2/m : C2/m

9.DI.580

Potassic-ferro-taramite

K(CaNa)(Fe2+3Al2)(Si6Al2)O22(OH)2

monoklin : 2/m : C/2m

9.DI.590

Other languages

German

Fluoro-Taramit

English

Fluoro-taramite

Russian

Фтортарамит

Alternative Name

German

Fluoro-Alumino-Magnesiotaramit

English

Fluoro-alumino-magnesiotaramite

Fluoro-magnesio-aluminotaramite

English

Fluoroaluminomagnesiotaramite

IMA Number

IMA 2006-025

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

German pages

DeWikiPedia - search for: Fluoro-Taramit
Google-Bilder-Suche - search for: Fluoro-Taramit
Mineralogisch-Petrographisches-Institut Hamburg - search for: Fluoro-Taramit

English pages

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Webmineral - search for:Fluoro-taramite
Handbook-of-Mineralogy - search for: Fluoro-taramite
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RRUFF - References and PDF downloads - search for: Fluoro-taramite
American-Mineralogist-Crystal-Structure-Database - search for: Fluoro-taramite
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Russian pages

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German pages

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Notice: "Undefined variable: ub"