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Ferro-ferri-katophorite

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Ferro-ferri-katophorite
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Ferro-ferri-katophorite

Black with perfect cleavage grains of Ferro-ferri-katophorite (ex. Ferrikatophorite) of composition (◻0.83K0.17)(Na1.89K0.11)2(Ca0.80Na0.20)(Fe2+2.53Mg1.13Ca0.18Mn0.16)4(Fe3+0.90Ti0.10)[(Si7...

Copyright: Pavel M. Kartashov
Contribution: Stefan 2016-07-13
Locality: Olenii (Oleny) Ruchei / Chibiny (Khibiny) / Kola-Halbinsel / Murmansk, Oblast / Nordwestrussland, Föderationskreis / Russland

Collectors Summary

Color schwarz
Crystal System monoklin, C2/m

Chemism

Chem­ical formula

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

Chem­ical com­po­si­tion

Aluminium, Calcium, Eisen, Natrium, Silicium, Sauerstoff, Wasserstoff

Unit weight: 974.8664026 u; Number of atoms in the formula: 42

Info

Empirical formula:

Na(NaCa)(Fe4Fe)(Si7Al)O22(OH)2

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

0.21

2

4.76

1.0079470

2.0158940

Oxygen

O

39.39

24

57.14

15.9994300

383.9863200

Sodium

Na

4.72

2

4.76

22.9897702

45.9795404

Aluminium

Al

2.77

1

2.38

26.9815382

26.9815382

Silicon

Si

20.17

7

16.67

28.0855300

196.5987100

Calcium

Ca

4.11

1

2.38

40.0784000

40.0784000

Iron

Fe

28.64

5

11.90

55.8452000

279.2260000

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:

Hey's Chem­ical Index of Min­er­als

16.24.05

16: Silicates Containing Aluminum and other Metals
24: Aluminosilicates of Fe, Mg, Ca and alkalis

IMA sta­tus

anerkannt - CNMNC Newsletter No. 31, June 2016, page 692; Mineralogical Magazine, 80, 691–697.

Min­eral sta­tus

anerkanntes Mineral

IMA Classification

IMA Clas­sifica­tion

Amphibole supergroup  ⇒ (OH,F,Cl)-dominant amphiboles  ⇒ Sodium-calcium amphiboles  ⇒ Katophorite (Ktp) amphiboles

Optical Properties

Color

schwarz

max. Birefrin­gence

0.020

Birefringence chart\! Ferro-ferri-katophorite title=Birefringence chart Ferro-ferri-katophorite

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

α = 1.640 - 1.681

RI value β

β = 1.658 - 1.688

RI value γ / ε

γ = 1.660 - 1.692

2V angle

Biaxial (-); 36° - 72° (berechnet)

Dis­per­sion

r < v stark

Crystallography

Crystal Sys­tem

monoklin

Class (H-M)

2/m

Space Group number

12

Space Group

C2/m

Cell param­e­ters a (Å)

9.8270(7)

Cell param­e­ters b (Å)

18.0300(8)

Cell param­e­ters c (Å)

5.316(4)

Cell param­e­ters a/b or c/a

0.545

Cell param­e­ters c/b

0.295

Cell param­e­ters α

90°

Cell param­e­ters β

104.626(3)°

Cell param­e­ters γ

90°

Volumne (ų)

911.371

Kristall struc­ture

Amphibol-Supergruppe; Struktur bestimmt

X-Ray Pow­der Diffrac­tion

8.446(100), 3.405(9), 3.284(14), 3.135(50), 2.815(26), 2.720(18), 2.173(9), 2.026(9)

XRD chart Ferro-ferri-katophorite

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

(Co-)Type locality

(Co-)Type locality

Argentinien/La Rioja, Provinz/Coronel Felipe Varela Department/Villa Unión/Eastern flank of the Sierra de Maz

Type mate­r­ial

Museo de Mineralogía “Dr. Alfred Stelzner”, Universidad Nacional de Córdoba (Argentina)

Col­lec­tion number of type mate­r­ial

MS003341

Preface

Author (Name, Year)

Fernando Colombo, Jordi Rius, Elies Molins, Héctor Biglia, Miguel Á. Galliski, María Florencia Márquez-Zavalía, Edgardo G.A. Baldo und Agustín Kriscautzky (2016)

References

2012 IMA Report: Nomenclature of the Amphibole Supergroup: Am. Mineral., 97 (2012), 2031-2048.

Colombo, F., Rius, J., Molins, E., Biglia, H., Galliski, M.Á., Márquez-Zavalía, M.F., Baldo, E.G.A. und Kriscautzky, A. (2016) Ferro-ferri-katophorite, IMA 2016-008. CNMNC Newsletter No. 31, June 2016, page 696; Mineralogical Magazine, 80, 691–697.

IMA group assignments





 
 
 
 
 
Na(CaNa)(Mg4Fe3+)(AlSi7)O22F2
monoklin
C2/m

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

 
 
 
 
 
Na(NaCa)(Fe2+4Fe3+)(Si7Al)O22(OH)2
monoklin
C2/m

 
 
 
 
 
Na(NaCa)(Fe2+4Al)(Si7Al)O22(OH)2
monoklin
C2/m

 
 
 
 
 
Na(NaCa)(Mg4Al)(Si7Al)O22(OH)2
monoklin
C2/m

Refresh list

Actuality: 21. Jan 2022 - 08:33:48

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

Potassic-ferro-ferri-taramite

K(CaNa)(Fe2+3Fe3+2)(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

Barroisite

☐(NaCa)(Mg3Al2)(Si7Al)O22(OH)2

monoklin : 2/m : C2/m

9.DE.20

Hjalmarite

Na(NaMn)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

Potassic-ferro-taramite

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

monoklin : 2/m : C/2m

9.DE.20

Ferro-ferri-taramite

Na(NaCa)(Fe2+3Fe3+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-winchite

NaCa(Fe2+,Mg)4AlSi8O22(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

Ferro-taramite

Na(CaNa)(Fe2+3Al2)(Si6Al2)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

Ferricoronadite

Pb(Mn4+6Fe3+2)O16

tetragonal : 4/m : I4/m

9.DE.20

Ferro-barroisite

☐NaCa(Fe2+3Al2)(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

Fluoro-richterite

Na(NaCa)Mg5Si8O22F2

monoklin : 2/m : C2/m

9.DE.20

Potassic-richterite

K(NaCa)Mg5Si8O22(OH)2

monoklin : 2/m : C2/m

9.DE.20

'Magnesiotaramite'

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

monoklin : 2/m : C2/m

9.DE.20

'Alumino-barroisite'

☐CaNaMg3Al2(Si7Al)O22(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-ferriwinchite'

CaNaFe3Si8O22(OH)2

monoklin : 2/m : C2/m

9.DE.20

'Alumino-ferrowinchite'

CaNaFe4AlSi8O22(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

'Alumino-ferro-barroisite'

☐CaNa(Fe2+)3Al2(Si7Al)O22(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

Potassic-fluoro-richterite

(K,Na)NaCaMg5Si8O22F2

monoklin : 2/m : C2/m

9.DE.20

Taramite

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

monoklin : 2/m : C2/m

9.DE.20

Ferri-fluoro-katophorite

Na(CaNa)(Mg4Fe3+)(AlSi7)O22F2

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

Ferri-katophorite

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

9.DE.20

Fluoro-taramite

Na(CaNa)(Mg3Al2)(Si6Al2)O22F2

monoklin : 2/m : C2/m

9.DE.20

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

Aegirine-augite

(Ca,Na)(Fe3+,Mg,Fe2+)Si2O6

monoklin : 2/m : C2/c

16.24.01

Ferro-ferri-katophorite

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

monoklin : 2/m : C2/m

16.24.05

Other languages

German

Ferro-Ferri-Katophorit

English

Ferro-ferri-katophorite

Russian

Ферроферрикатофорит

Alternative Name

Italian

Ferrikatophorita

CNMNC (IMA)-Number

IMA 2016-008

CNMNC symbol

Symbol

Ffktp

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

German pages

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