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Magnussonite

Formula:
(Mn,Mg,Cu)
 
5
(AsO
 
3
)
 
3
(OH,Cl)
Colour:Emerald or Grass GreenHardness: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:46.1.3.1

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

Chemical Properties of Magnussonite

Formula:
(Mn,Mg,Cu)
 
5
(AsO
 
3
)
 
3
(OH,Cl)
Essential elements:As, H, Mn, O
All elements listed in formula:As, Cl, Cu, H, Mg, Mn, O

Relationship of Magnussonite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
4.JB.05Fetiasite
(Fe
3+
 
,Fe
2+
 
,Ti)
 
3
[O
 
2
|As
 
2
O
 
5
]
4.JB.10Manganarsite
Mn
 
3
[(OH)
 
4
|As
 
2
O
 
4
]
4.JB.20Armangite
Mn
2+
26
[CO
 
3
|(HAsO
 
3
)
 
4
|(AsO
 
3
)
 
14
]
4.JB.25Nanlingite
CaMg
 
4
[F
 
2
|AsO
 
3
]
 
2
4.JB.30Asbecasite
Ca
 
3
(Ti,Sn
4+
 
)Be
 
2
[(AsO
 
3
)
 
3
|SiO
 
4
]
 
2
4.JB.35Stenhuggarite
CaFeSbO(AsO
 
3
)
 
2
4.JB.40Trigonite
Pb
 
3
Mn
2+
 
[HAsO
 
3
|(AsO
 
3
)
 
2
]
4.JB.45Finnemanite
Pb
 
5
[Cl|(AsO
 
3
)
 
3
]
4.JB.50Gebhardite
Pb
 
8
[O|Cl
 
6
|(As
 
2
O
 
5
)
 
2
]
4.JB.55Derbylite
(Fe,Fe,Ti)
 
7
SbO
 
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
(As,Sb)
 
2
(Ti,V,Fe,Al)
 
12
O
 
23
OH
4.JB.65Freedite
Pb
 
15
(Cu,Fe
2+
 
)
 
3
[O
 
7
|Cl
 
10
|(AsO
 
3
)
 
4
]
4.JB.70Georgiadèsite
Pb
 
16
[(OH)
 
6
|Cl
 
14
|(AsO
 
4
)
 
4
]
4.JB.75Ekatite
(Fe
3+
 
,Fe
2+
 
,Zn)
 
12
(OH)
 
6
(AsO
 
3
)
 
6
[AsO
 
3
,HOSiO
 
3
]
 
2

Other Names for Magnussonite

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

Other Information

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.

Articles/Blogs about Magnussonite

Internet Links for Magnussonite

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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.
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    (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
    Can Min 41, Number 1, February 2003, 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
    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.
    Mineral and/or Locality
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