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Magnussonite

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Big Photo

Långban, Filipstad, Värmland, Sweden
© Kjell Gatedal

Show Magnussonite Photos (6)



Formula:
Mn
 
10
As
 
6
O
 
18
(OH,Cl)
 
2
System:IsometricColour:Emerald- or grass-green
Hardness:3½ - 4
This page provides mineralogical data about Magnussonite.

Classification of Magnussonite

IMA status:Approved
Strunz 8th edition ID:4/J.05-30
Nickel-Strunz 10th (pending) edition ID:4.JB.15

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
J : Arsenites, antimonites, bismuthites, sulfites, selenites, tellurites; iodates
B : Arsenites, antimonites, bismuthites; with additional anions, without H2O
Dana 8th edition ID:46.1.6.1

46 : ANTIMONITES AND ARSENITES CONTAINING HYDROXYL OR HALOGEN
1 : (AB)m(XO3)pZq
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Type Occurrence of Magnussonite

Type Locality:Långban, Filipstad, Värmland, Sweden
Year of Discovery:1956

Physical Properties of Magnussonite

Lustre:Vitreous
Colour:Emerald- or grass-green
Streak:White
Hardness (Mohs):3½ - 4

Crystallography of Magnussonite

Crystal System:Isometric
Class (H-M):m3m (4/m 3 2/m) - Hexoctahedral
Space Group:Ia3d {I41/a 3 2/d}
Cell Parameters:a = 19.680Å
Unit Cell Volume:V 7,622.11 ų (Calculated from Unit Cell)

Chemical Properties of Magnussonite

Formula:
Mn
 
10
As
 
6
O
 
18
(OH,Cl)
 
2
Essential elements:As, H, Mn, O
All elements listed in formula:As, Cl, H, Mn, O

Relationship of Magnussonite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
4.JB.05Fetiasite
(Fe
3+
 
,Fe
2+
 
,Ti)
 
3
(As
 
2
O
 
5
)O
 
2
4.JB.10Manganarsite
Mn
 
3
(As
 
2
O
 
4
)(OH)
 
4
4.JB.15UM1984-09-AsO:ClHMn
Mn
 
10
As
 
6
O
 
18
(OH)Cl
4.JB.20Armangite
Mn
2+
26
(AsO
 
3
)
 
14
(HAsO
 
3
)
 
4
(CO
 
3
)
4.JB.25Nanlingite
NaMg
 
4
(AsO
 
3
)
 
2
F
 
4
4.JB.30Asbecasite
Ca
 
3
(Ti,Sn
4+
 
)Be
 
2
(AsO
 
3
)
 
6
(SiO
 
4
)
 
2
4.JB.35Stenhuggarite
CaFeSb(AsO
 
3
)
 
2
O
4.JB.40Trigonite
Pb
 
3
Mn
2+
 
(AsO
 
3
)
 
2
(HAsO
 
3
)
4.JB.45Finnemanite
Pb
 
5
(AsO
 
3
)
 
3
Cl
4.JB.50Gebhardite
Pb
 
8
(As
 
2
O
 
5
)
 
2
OCl
 
6
4.JB.55Derbylite
Fe
3+
4
Ti
 
3
Sb
3+
 
O
 
13
(OH)
4.JB.55Tomichite
(V,Fe)
 
4
Ti
 
3
AsO
 
13
(OH)
4.JB.55Graeserite
(Fe
3+
 
,Ti)
 
4
Ti
 
3
AsO
 
13
(OH)
4.JB.60Hemloite
(Ti,V
3+
 
,Fe
3+
 
,Al)
 
12
(As
3+
 
,Sb
3+
 
)
 
2
O
 
23
(OH)
4.JB.65Freedite
Cu
+
 
Pb
 
8
(AsO
 
3
)
 
2
O
 
3
Cl
 
5
4.JB.70Georgiadèsite
Pb
 
4
(AsO
 
3
)Cl
 
4
(OH)
4.JB.75Ekatite
(Fe
3+
 
,Fe
2+
 
,Zn)
 
12
(AsO
 
3
)
 
6
(AsO
 
3
,HSiO
 
4
)
 
2
(OH)
 
6

Other Names for Magnussonite

Other Languages:
German:Magnussonit
Russian:Магнуссонит
Spanish:Magnussonita

Other Information

Special Storage/
Display Requirements from:
Sterling Mine,..., Sussex Co., New Jersey, USANone.
Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Magnussonite

Reference List:

- +
American Mineralogist (1957): 42: 581.

American Mineralogist (1971): 56: 636-637.

American Mineralogist (1979): 64: 390-401.

American Mineralogist (1984): 69: 800-802.

Arkiv för Mineralogi och Geologi:: 2: 133-135.

European Journal of Mineralogy: 8: 25-34.

Nysten, P. (2003): Yeatmanite and magnussonite from the Garpenberg Norra mine, Bergslagen ore province, Sweden. Can. Mineral., 41, 201-206.

Internet Links for Magnussonite

Search Engines:
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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
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    • Localities for Magnussonite

    The map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
    Hide Locality List
    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Sweden
     
    • Dalarna
      • Hedemora
        • Garpenberg
    		Nysten, P. (2003): Yeatmanite and magnussonite from the Garpenberg Norra mine, Bergslagen ore province, Sweden. Can. Mineral., 41, 201-206.
    • Värmland
      • Filipstad
    		Arkiv Min.Geol.(1956) 2, 133-135; Nysten, P., Holtstam, D. and Jonsson, E. (1999) The Långban minerals. In Långban - The mines,their minerals, geology and explorers (D. Holtstam and J. Langhof, eds.), Swedish Museum of Natural History and Raster Förlag, Stockholm & Chr. Weise Verlag, Munich, pp. 89-183.
        • Nordmark (Nordmarksberg)
    		Min.Mag.(1978) 42, 133-136
    USA
     
    • New Jersey
      • Sussex Co.
        • Franklin Mining District
          • Ogdensburg
            • Sterling Hill
    		Frondel, C.: Arkiv för Mineralogi och Geologi Stockholm:2:571 (1961); Dunn, P.J. & Ramik, R.A.: Am.Min.:69:800-802 (1984); Dunn(1995):Pt5:672.
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