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Arfvedsonite

Pictures (59 Images total)

Arfvedsonit
Views (File:
1165413330
): 4668, Rating: 8.71
Arfvedsonit
Fundort Mont Saint-Hilaire, Quebéc, Kanada
Copyright: Stephan Wolfsried; Contribution: Hg
Location: Kanada/Québec/Montérégie, Region/La Vallée-du-Richelieu RCM/Mont Saint-Hilaire/Poudrette Quarry (Demix Quarry; Uni-Mix Quarry; Desourdy Quarry)
Mineral: Arfvedsonite
Image: 1165413330
Rating: 8.71 (votes: 7)
License: Usage for Mineralienatlas project only
Arfvedsonit

Fundort Mont Saint-Hilaire, Quebéc, Kanada

Copyright: Stephan Wolfsried
Contribution: Hg 2006-12-06
Locality: Poudrette Quarry (Demix Quarry; Uni-Mix Quarry; Desourdy Quarry) / Mont Saint-Hilaire / La Vallée-du-Richelieu RCM / Montérégie, Region / Québec / Kanada
Arfvedsonit
Views (File:
1275414817
): 4832, Rating: 8.67
Arfvedsonit
Arfvedsonit auf Orthoklas. Größe: 7,4 x 4,7 x 3,8 cm, Fundort: Mt. Malosa, Zomba District, Malawi
Copyright: Dan Weinrich; Contribution: thdun5
Location: Malawi/Southern Region/Zomba, Distrikt/Mount Malosa
Mineral: Arfvedsonite
Image: 1275414817
Rating: 8.67 (votes: 6)
License: Usage for Mineralienatlas project only
Arfvedsonit

Arfvedsonit auf Orthoklas. Größe: 7,4 x 4,7 x 3,8 cm, Fundort: Mt. Malosa, Zomba District, Malawi

Copyright: Dan Weinrich
Contribution: thdun5 2010-06-01
Locality: Mount Malosa / Zomba, Distrikt / Southern Region / Malawi
Arfvedsonit
Views (File:
1343504498
): 5296, Rating: 9.2
Arfvedsonit
Größe: 51x32 mm; Fundort: Mount Malosa, Zomba-Distrikt, Malawi
Copyright: Jewels-Fine-Minerals; Contribution: slugslayer
Location: Malawi/Southern Region/Zomba, Distrikt/Mount Malosa
Mineral: Arfvedsonite
Image: 1343504498
Rating: 9.2 (votes: 5)
License: Usage for Mineralienatlas project only
Arfvedsonit

Größe: 51x32 mm; Fundort: Mount Malosa, Zomba-Distrikt, Malawi

Copyright: Jewels-Fine-Minerals
Contribution: slugslayer 2012-07-28
Locality: Mount Malosa / Zomba, Distrikt / Southern Region / Malawi
Arfvedsonit
Views (File:
1389559701
): 2425
Arfvedsonit
Prismatische schwarze Kristalle mit Quarz, BB = 4,2 mm, Fundort: Washington Pass, Okanogan Co., Washington, USA.
Copyright: Bebo; Contribution: Münchener Micromounter
Collection: Lithothek der Münchener Micromounter, Collection number: A007238, Donator: eschuhbauer
Location: USA/Washington/Okanogan Co./Washington Pass
Mineral: Arfvedsonite
Image: 1389559701
Rating: 9 (votes: 2)
License: Usage for Mineralienatlas project only
Arfvedsonit (SNr: A007238)

Prismatische schwarze Kristalle mit Quarz, BB = 4,2 mm, Fundort: Washington Pass, Okanogan Co., Washington, USA.

Collection: Lithothek der Münchener Micromounter
Copyright: Bebo
Contribution: Münchener Micromounter 2014-01-12
Locality: Washington Pass / Okanogan Co. / Washington / USA
Prismatischer schwarzer Arfvedsonit
Views (File:
1557301310
): 316
Prismatischer schwarzer Arfvedsonit
Kanada/Québec/Montérégie, Region/La Vallée-du-Richelieu RCM/Mont Saint-Hilaire, BB = 7,6 mm
Copyright: Hannes Osterhammer; Contribution: Münchener Micromounter
Collection: Lithothek der Münchener Micromounter, Collection number: A004932, Donator: Heinz Hublitz
Location: Kanada/Québec/Montérégie, Region/La Vallée-du-Richelieu RCM/Mont Saint-Hilaire
Mineral: Arfvedsonite
Image: 1557301310
Rating: 9 (votes: 1)
License: Usage for Mineralienatlas project only
Prismatischer schwarzer Arfvedsonit (SNr: A004932)

Kanada/Québec/Montérégie, Region/La Vallée-du-Richelieu RCM/Mont Saint-Hilaire, BB = 7,6 mm

Collection: Lithothek der Münchener Micromounter
Copyright: Hannes Osterhammer
Contribution: Münchener Micromounter 2019-05-08
Locality: Mont Saint-Hilaire / La Vallée-du-Richelieu RCM / Montérégie, Region / Québec / Kanada
Arfvedsonite with Orthoclase
Views (File:
1708793544
): 24
Arfvedsonite with Orthoclase
DT Arfvedsonite crystal and few smaller, aesthetically nested on Orthoclase, from Mount Malosa, Zomba District, Malawi; Dimensions: 60 mm x 57 mm x 31 mm
Copyright: pegmatite; Contribution: pegmatite
Location: Malawi/Southern Region/Zomba, Distrikt/Mount Malosa
Mineral: Arfvedsonite
Image: 1708793544
Rating: 9 (votes: 1)
License: Usage for Mineralienatlas project only
Arfvedsonite with Orthoclase

DT Arfvedsonite crystal and few smaller, aesthetically nested on Orthoclase, from Mount Malosa, Zomba District, Malawi; Dimensions: 60 mm x 57 mm x 31 mm

Copyright: pegmatite
Contribution: pegmatite 2024-02-24
Locality: Mount Malosa / Zomba, Distrikt / Southern Region / Malawi

You find additional specimen at the Geolitho Museum

Collectors Summary

Color schwarz, graulich grün, bläulich grau
Streak color bläulich grau
Hardness (Mohs) 5.5
Solubility +++ HF
Crystal System monoklin, C2/m

Chemism

Chemical formula

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

Chemical composition

Eisen, Magnesium, Natrium, Silicium, Sauerstoff, Wasserstoff

Unit weight: 927.3416246 u; Number of atoms in the formula: 42

Info

Empirical formula:

Na3(Fe0.75Mg0.25)4FeSi8O22(OH)2

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

0.22

2

4.76

1.0079470

2.0158940

Oxygen

O

41.41

24

57.14

15.9994300

383.9863200

Sodium

Na

7.44

3

7.14

22.9897702

68.9693106

Magnesium

Mg

2.62

1

2.38

24.3050600

24.3050600

Silicon

Si

24.23

8

19.05

28.0855300

224.6842400

Iron

Fe

24.09

4

9.52

55.8452000

223.3808000

Analysis wt%

SiO2 : 50.16, Al2O3 : 1.10, TiO2 : 1.64, Fe2O3 : 9.12, FeO : 20.60, MnO : 2.27, MgO : 0.92, CaO : 1.32, Na2O : 3.61, K2O : 3.61, H2O : 1.68 (Ref: Canadian Mineralogist 65)

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

Lapis Classification

VIII/F.08-155

VIII: SILIKATE
F: Ketten- und Bandsilikate
8: Zweierbänder [Si4O11] 6-; Amphibol-Gruppe; Alkali-Amphibole

Classification by Hölzel

9.DJ.420

9: SILICATES
D: Inosilicates; ~[Si2O6]4--...2-Chain
J: Amphiboles; Sodic Amphiboles
4: Arfvedsonite-Group

Dana 8th edition

66.01.03c.09

66: Inosilicates Inosilicate Double-Width Unbranched Chains, W=2
01: Inosilicates Inosilicate Double-Width Unbranched Chains, W=2 with P=2 amphibole configuration
03c: Group 4, the sodic amphiboles

IMA status

anerkannt, bekannt vor IMA 1959, vererbt

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

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

Optical Properties

Color

schwarz, graulich grün, bläulich grau

Streak color

bläulich grau

Diaphaneity (Transparency)

durchscheinend bis opak

max. Birefringence

0.013

Birefringence chart\! Arfvedsonite title=Birefringence chart Arfvedsonite

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

1.685

RI value β

1.695

RI value γ / ε

1.698

Ri mean

1.693

2V angle

Biaxial (-) 69°

Optical Data Luminescence

Color LW-UV (365nm)

 

orange

LW-UV Intensity

stark

Afterglow (Persistant Luminescence)

keine Daten

Crystallography

Crystal System

monoklin

Class (H-M)

2/m

Space Group number

12

Space Group

C2/m

Cell parameters a (Å)

9.88

Cell parameters b (Å)

18.21

Cell parameters c (Å)

5.31

Cell parameters a/b or c/a

0.543

Cell parameters c/b

0.292

Cell parameters α

90°

Cell parameters β

103.10

Cell parameters γ

90°

Z

2

Volume (ų)

930.486

X-Ray Powder Diffraction

8.57(100),
4.51(10),
3.412(10),
3.299(10),
3.179(40),
2.843(20),
2.718(10),
2.421(10)

XRD chart Arfvedsonite

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)

530 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

3.44 - 3.45 / Durchschnittlich = 3.44

3.31 ( ρ calc. Mineralienatlas )

Instability

+++ HF

(Co-)Type locality

(Co-)Type locality

Grönland/Kommune Kujalleq/Narsaq/Ilimaussaq-Komplex

Preface

Occurrences

in den meisten Alkali-Pegmatiten

Name from

Johan August Arfwedson
Johan August Arfwedson
(1792 – 1841), schwedischer Chemiker, entdeckte das Element Lithium.
Copyright: unbekannt / Archiv Oliver S.; Contribution: oliverOliver
Image: 1704494078
License: Usage for Mineralienatlas project only

Johan August Arfwedson (1792 – 1841), schwedischer Chemiker, entdeckte das Element Lithium.

Author (Name, Year)

Brooke, 1823

References

Canadian Mineralogist 41 (2003), 1355

IMA group assignments



 
 
 
 
 
 


 
 
 
 
 
Na3(Fe2+,Mg)4Fe3+Si8O22(OH)2
monoklin
C2/m

 
 
 
 
 
Na3(Mg,Fe2+)4Fe3+Si8O22(OH)2
monoklin
C2/m

 
 
 
 
 
(Na,K)Na2(Mg,Fe2+)4Fe3+[(F,OH)|Si4O11]2
monoklin
C2/m

 
 
 
 
 
KNa2Fe2+4Fe3+Si8O22(OH)2
monoklin
C2/m

 
 
 
 
 
[K][Na2][Mg4Fe3+][(OH)2|Si8O22]
monoklin
C2/m

 
 
 
 
 
KNa2(Mg,Fe2+)5[(F,OH)|Si4O11]2
monoklin
C/2m

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Actuality: 25. Feb 2024 - 21:52:16

Varieties

Juddite

Mangan-haltige Varietät von Arfvedsonit, mit einem Anteil von bis zu 7,7% (w/w) von MnO

Other languages

German

Arfvedsonit

Spanish

Arfvedsonita

French

Arfvedsonite

English

Arfvedsonite

Russian

Арфведсонит

Simplified Chinese

亚铁钠闪石

Traditional Chinese

亞鐵鈉閃石

Simplified Chinese

钠铁闪石

Japanese

アルペゾン閃石

Alternative Name

Arfvedsonite (of Brooke)

English

Arfvedsonite (of Brooke)

Arfwedsonit

Arfwedsonita

Arfwedsonite

English

Manganuralite

Soda-Hornblende

English

Sodahornblende

Traditional Chinese

鈉角閃石

Traditional Chinese

鈉鈣閃石

Simplified Chinese

钠钙闪石

CNMNC symbol

Symbol

Arf

Rock part of

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Hint

- Essential mineral - Important for the classification of the rock.
- Accessory or non-essential mineral - this minerals are common, sometimes major part of, but are not always present.

Actuality: 25. Feb 2024 - 21:52:16

Locations with GPS information

IDs

GUSID (Global unique identifier short form) 2i9CDfRo40yZm9MMZIMyyQ
GUID (Global unique identifier) 0D422FDA-68F4-4CE3-999B-D30C648332C9
Database ID 174