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Potassic-magnesio-arfvedsonite

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Kalium-Magnesium-Arfvedsonit
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Kalium-Magnesium-Arfvedsonit

grüner, nadeliger Kalium-Magnesium-Arfvedsonit, Kovdor Phlogopite Mine, Kovdor, Kola, Russland; BB 3 mm, analysiert

Copyright: MinTreasure.com (Carsten Slotta)
Contribution: openpit 2020-02-04
Locality: Kovdor-Phlogopitlagerstätte (Kovdorslyuda) / Kovdor / Kola-Halbinsel / Murmansk, Oblast / Nordwestrussland, Föderationskreis / Russland

Collectors Summary

Crystal System monoklin, C2/m

Additional information / Summary

Erstbreicht aus Pendennis, Falmouth, Helford - Falmouth Area, Wendron & Falmouth District, Cornwall, England, UK.

Chemism

Chem­ical formula

[K][Na2][Mg4Fe3+][(OH)2|Si8O22]

Chem­ical com­po­si­tion

Eisen, Magnesium, Natrium, Silicium, Kalium, Sauerstoff, Wasserstoff

Unit weight: 848.8297444 u; Number of atoms in the formula: 42

Info

Empirical formula:

[K][Na2][Mg4Fe][(OH)2Si8O22]

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

0.24

2

4.76

1.0079470

2.0158940

Oxygen

O

45.24

24

57.14

15.9994300

383.9863200

Sodium

Na

5.42

2

4.76

22.9897702

45.9795404

Magnesium

Mg

11.45

4

9.52

24.3050600

97.2202400

Silicon

Si

26.47

8

19.05

28.0855300

224.6842400

Potassium

K

4.61

1

2.38

39.0983100

39.0983100

Iron

Fe

6.58

1

2.38

55.8452000

55.8452000

Strunz 9th edi­tion incl. updates

9.DE.25

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

IMA sta­tus

Veröffentlicht ohne Prüfung 2003, anerkannt CNMNC in Newsletter 35 im Dez. 2016

Min­eral sta­tus

anerkanntes Mineral

IMA Classification

IMA Clas­sifica­tion

Amphibole supergroup  ⇒ (OH,F,Cl)-dominant amphiboles  ⇒ Sodium Amphiboles  ⇒ Arfvedsonite (Arf) amphiboles

Crystallography

Crystal Sys­tem

monoklin

Class (H-M)

2/m

Space Group number

12

Space Group

C2/m

Cell param­e­ters a (Å)

9.986(2)

Cell param­e­ters b (Å)

18.022(3)

Cell param­e­ters c (Å)

5.3151(12)

Cell param­e­ters a/b or c/a

0.554

Cell param­e­ters c/b

0.295

Cell param­e­ters α

90°

Cell param­e­ters β

104.44(2)°

Cell param­e­ters γ

90°

Volumne (ų)

926.328

Kristall struc­ture

Amphibole Supergruppe; Struktur bestimmt

X-Ray Pow­der Diffrac­tion

8.519(87),
3.406(82),
3.172(72),
2.755(59),
2.716(100),
2.594(52),
2.551(68),
2.175(57)

XRD chart Potassic-magnesio-arfvedsonite

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

Physical Properties

Chem­ical Prop­er­ties and Tests

Victor G. Ivanov, Momchil Dyulgerov, Roberta Oberti: Polarized Raman spectroscopy and lattice dynamics of potassic-magnesio-arfvedsonite. Physics and Chemistry of Minerals Volume 46, Issue 2 (2019) S. 181–191.

(Co-)Type locality

(Co-)Type locality

Bulgarien/Sofia, Oblast/Buhovo-Seslavtsi Pluton

Type mate­r­ial

Mineralogy, Petrology and Economic Geology, Sofia University ‘St. Kliment Ohridski’, 15 Tsar Osvoboditel Blvd, Sofia 1504, Bulgaria

Col­lec­tion number of type mate­r­ial

M 7661

Preface

Author (Name, Year)

Deer & Howie & Zussman, 1997

Momchil Dyulgerov, Bernard Platevoet, Roberta Oberti, Milen Kadiyski und Ventsislav Rusanov (2017)

References

Mineralogical Magazine 45 (1982), 257.

Canadian Mineralogist, 41 (2003), 1329-1344.

European Journal of Mineralogy 18 (2006), 127.

Dyulgerov, M., Platevoet, B., Oberti, R.,Kadiyski,M. and Rusanov,V. (2017) Potassicmagnesio-arfvedsonite, IMA 2016-083. CNMNC Newsletter No. 35, February 2017, page 210; Mineralogical Magazine, 81, 209–213.

IMA group assignments

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

'Juddite' (Var.v. Arfvedsonite)

9.DE.25

Potassic-mangani-leakeite

KNa2(Mg2Mn3+2Li)[Si8O22](OH)2

monoklin : 2/m : C2/m

9.DE.25

Ferri-Leakeite

NaNa2(Mg2Fe3+2Li)Si8O22(OH)2

monoklin : 2/m : C2/m

9.DE.25

Nybøite

NaNa2(Mg3Al2)Si7AlO22(OH)2

monoklin : 2/m : C2/m

9.DE.25

Mangani-obertiite

NaNa2(Mg3Mn3+Ti4+)Si8O22O2

monoklin : 2/m : C2/m

9.DE.25

Pedrizite

NaLi2(Mg2Al2Li)Si8O22(OH)2

monoklin : 2/m : C2/m

9.DE.25

'Anophorite' (Var.v. Magnesio-arfvedsonite)

9.DE.25

Mangano-ferri-eckermannite

Na3Mn42+(Fe3+,Al)Si8O22(OH,F)2

monoklin : 2/m : C2/m

9.DE.25

Riebeckite

Na2(Fe2+,Mg)3Fe23+Si8O22(OH)2

monoklin : 2/m : C2/m

9.DE.25

Glaucophane

Na2(Mg,Fe2+)3Al2Si8O22(OH)2

monoklin : 2/m : C2/m

9.DE.25

'Ottoliniite'

NaLi(Mg3Fe3+Al)Si8O22(OH)2

C/2m

9.DE.25

Arfvedsonite

Na3(Fe2+,Mg)4Fe3+Si8O22(OH)2

monoklin : 2/m : C2/m

9.DE.25

Eckermannite

NaNa2(Mg4Al)Si8O22(OH)2

monoklin : 2/m : C2/m

9.DE.25

Fluoro-leakeite

NaNa2(Mg2Al2Li)Si8O22F2

monoklin : 2/m : C2/m

9.DE.25

Ferri-fluoro-leakeite

NaNa2(Mg2Fe3+2Li)Si8O22F2

monoklin : 2/m : C2/m

9.DE.25

'Crocidolite' (Var.v. Riebeckite)

Na2(Fe2+,Mg)3Fe23+Si8O22(OH)2

9.DE.25

Mangano-mangani-ungarettiite

(Na,K)Na2(Mn2+,Mg)2Mn33+[O|Si4O11]2

monoklin : 2/m : C2/m

9.DE.25

'Whittakerite'

Na(Na Li)(Li Mg2Fe3+Al)Si8O22(OH)2

9.DE.25

Ferri-nybøite

NaNa2(Mg3Fe3+2)(Si7Al)O22(OH)2

monoklin : 2/m : C2/m

9.DE.25

Ferroleakeite

[Na][Na2][Fe2+2Fe3+2Li][(OH)2|Si8O22]

monoklin : 2/m : C2/m

9.DE.25

Ferro-nybøite

NaNa2(Fe2+)3Al2(Si7Al)O22(OH)2

monoklin : 2/m : C2/m

9.DE.25

Suenoite

☐Mn2Mg5Si8O22(OH)2

orthorhombisch : mmm : Pnma

9.DE.25

Ferro-ferri-pedrizite

NaLi2(Fe2+2Fe3+2Li)Si8O22(OH)2

monoklin : 2/m : B2/m

9.DE.25

Fluoro-nybøite

NaNa2(Mg3Al2)(AlSi7O22)(F,OH)2

monoklin : 2/m : C2/m

9.DE.25

Potassic-ferri-leakeite

KNa2Mg2Fe3+2LiSi8O22(OH)2

monoklin : 2/m : C2/m

9.DE.25

Clino-suenoite

☐Mn2+2Mg5Si8O22(OH)2

monoklin : 2/m : C2/m

9.DE.25

Mangani-dellaventuraite

NaNa2(MgMn3+2Ti4+Li)Si8O22O2

monoklin : 2/m : C2/m

9.DE.25

Ferri-obertiite

NaNa2(Mg3Fe3+Ti)Si8O22O2

monoklin : 2/m : C2/m

9.DE.25

Ferro-pedrizite

NaLi2(Fe2+2Al2Li)Si8O22(OH)2

monoklin : 2/m : C2/m

9.DE.25

Ferro-Glaucophane

Na2(Fe2+,Mg)3Al2Si8O22(OH)2

monoklin : 2/m : C2/m

9.DE.25

Ferro-ferri-obertiite

NaNa2(Fe2+3Fe3+Ti)Si8O22O2

monoklin : 2/m : C2/m

9.DE.25

'Ferri-ottoliniite'

AB(Na1Li1)C(Fe3+2Mg3)TSi8O22(OH)2

monoklin : 2/m : C2/m

9.DE.25

Ferri-whittakerite

Na(Na1.0-1.5Li0.5-1.0)2(Fe3+2Mg2Li)Si8O22(OH)2

monoklin : 2/m : C2/m

9.DE.25

Ferro-eckermannite

Na3(Fe2+,Mg)4AlSi8O22(OH)2

monoklin : 2/m : C2/m

9.DE.25

Potassic-arfvedsonite

KNa2Fe2+4Fe3+Si8O22(OH)2

monoklin : 2/m : C2/m

9.DE.25

Magnesioriebeckite

Na2(Mg,Fe2+)3Fe23+Si8O22(OH)2

monoklin : 2/m : C2/m

9.DE.25

Ferro-ferri-nybøite

NaNa2(Fe2+3Fe3+2)Si8O22(OH)2

monoklin : 2/m : C2/m

9.DE.25

Ferro-ferri-fluoro-leakeite

(Na,K)Na2Li(Fe2+,Mn2+,Mg)2Fe23+[(OH,F)|Si4O11]2

monoklin : 2/m : C2/m

9.DE.25

Magnesio-arfvedsonite

Na3(Mg,Fe2+)4Fe3+Si8O22(OH)2

monoklin : 2/m : C2/m

9.DE.25

Clino-ferro-holmquistite

[]Li2[(Fe2+)3Al2]Si8O22(OH,F)2

monoklin : 2/m : C2/m

9.DE.25

Ferro-ferri-hornblende

☐Ca2(Fe2+4Fe3+)(Si7Al)O22(OH)2

monoklin : 2/m : C2/m

9.DE.25

Fluoro-pedrizite

NaLi2(Mg2Al2Li)Si8O22F2

monoklin : 2/m : C2/m

9.DE.25

Clino-ferro-ferri-holmquistite

☐Li2(Fe3+,Fe2+,Mg,Al)2Si8O22(OH,F)2

monoklin : 2/m : C/2m

9.DE.25

Magnesio-fluoro-arfvedsonite

(Na,K)Na2(Mg,Fe2+)4Fe3+[(F,OH)|Si4O11]2

monoklin : 2/m : C2/m

9.DE.25

Potassic-magnesio-arfvedsonite

[K][Na2][Mg4Fe3+][(OH)2|Si8O22]

monoklin : 2/m : C2/m

9.DE.25

Potassic-magnesio-fluoro-arfvedsonite

KNa2(Mg,Fe2+)5[(F,OH)|Si4O11]2

monoklin : 2/m : C/2m

9.DE.25

Clino-sodic-ferri-ferro-holmquistite

Na0.5Li2(Fe3+,Fe2+,Mg,Li,Al)5Si8O22(OH,F)2

monoklin : 2/m : C2/m

9.DE.25

Other languages

German

Kalium-Magnesium-Arfvedsonit

Spanish

Potasio-magnesio-arfvedsonita

English

Potassic-magnesio-arfvedsonite

CNMNC (IMA)-Number

IMA 2016-083

CNMNC symbol

Symbol

Pmarf

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