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Filipstadite

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Nordmark (Nordmarksberg), Filipstad, Värmland, Sweden
© K.Gatedal

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Formula:
(Mn,Mg)
 
2
(Sb
 
.5
Fe
 
.5
)O
 
4
System:OrthorhombicHardness:6 - 6½
Name:
For the town of Filipstad, Sweden, which is near the Långban mine.
This page provides mineralogical data about Filipstadite.

Classification of Filipstadite

IMA status:Approved
Strunz 8th edition ID:4/B.05-70
Nickel-Strunz 10th (pending) edition ID:4.BB.05

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
B : Metal: Oxygen = 3:4 and similar
B : With only medium-sized cations
Dana 8th edition ID:7.2.13.1

7 : MULTIPLE OXIDES
2 : AB2X4
Hey's CIM Ref.:7.19.6

7 : Oxides and Hydroxides
19 : Oxides of Mn and Fe
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Type Occurrence of Filipstadite

Type Locality:Långban, Filipstad, Värmland, Sweden
Year of Discovery:1988

Physical Properties of Filipstadite

Hardness (Mohs):6 - 6½

Crystallography of Filipstadite

Crystal System:Orthorhombic
Cell Parameters:a = 36.7Å, b = 36.7Å, c = 25.9Å
Ratio:a:b:c = 1 : 1 : 0.706
Unit Cell Volume:V 34,884.45 ų (Calculated from Unit Cell)

Optical Data of Filipstadite

Type:Biaxial
Dispersion:r > v strong

Chemical Properties of Filipstadite

Formula:
(Mn,Mg)
 
2
(Sb
 
.5
Fe
 
.5
)O
 
4
Essential elements:Fe, Mn, O, Sb
All elements listed in formula:Fe, Mg, Mn, O, Sb

Relationship of Filipstadite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
4.BB.05Brunogeierite
Fe
2+
2
Ge
4+
 
O
 
4
4.BB.05Chromite
Fe(Cr,Al,Fe)
 
2
O
 
4
4.BB.05Cochromite
(Co,Ni,Fe)(Cr,Al)
 
2
O
 
4
4.BB.05Coulsonite
Fe
2+
 
V
3+
2
O
 
4
4.BB.05Cuprospinel
Cu
2+
 
Fe
3+
2
O
 
4
4.BB.05Franklinite
Zn
2+
 
Fe
3+
2
O
 
4
4.BB.05Gahnite
ZnAl
 
2
O
 
4
4.BB.05Galaxite
(Mn,Fe,Mg)(Al,Fe)
 
2
O
 
4
4.BB.05Hercynite
Fe
2+
 
Al
 
2
O
 
4
4.BB.05Jacobsite
Mn
2+
 
Fe
3+
2
O
 
4
4.BB.05Manganochromite
(Mn,Fe)(Cr,V)
 
2
O
 
4
4.BB.05Magnesiocoulsonite
MgV
 
2
O
 
4
4.BB.05Magnesiochromite
Mg(Cr,Al,Fe)
 
2
O
 
4
4.BB.05Magnesioferrite
MgFe
3+
2
O
 
4
4.BB.05Magnetite
Fe
2+
 
Fe
3+
2
O
 
4
4.BB.05Nichromite
(Ni,Co,Fe)(Cr,Fe,Al)
 
2
O
 
4
4.BB.05Qandilite
(Mg,Fe)
 
2
(Ti,Fe,Al)O
 
4
4.BB.05Spinel
MgAl
 
2
O
 
4
4.BB.05Trevorite
Ni
2+
 
Fe
3+
2
O
 
4
4.BB.05Ulvöspinel
Fe
 
2
TiO
 
4
4.BB.05Vuorelainenite
(Mn,Fe)(V,Cr)
 
2
O
 
4
4.BB.05Zincochromite
ZnCr
 
2
O
 
4
4.BB.10Hausmannite
MnMn
 
2
O
 
4
4.BB.10Hetaerolite
ZnMn
 
2
O
 
4
4.BB.10Hydrohetaerolite
ZnMn
 
2
O
 
4
 · H
 
2
O
4.BB.10Iwakiite
Mn(Fe,Mn)
 
2
O
 
4
4.BB.15Maghemite
Fe
3+
2
O
 
3
4.BB.15Titanomaghemite
Fe
3+
 
(Fe
3+
 
,Ti
4+
 
,Fe
2+
 
,◻)
 
2
O
 
4
4.BB.20Tegengrenite
(Mg,Mn
2+
 
)
 
2
Sb
5+
0.5
(Mn
3+
 
,Si,Ti)
 
0.5
O
 
4
4.BB.25Xieite
Fe
2+
 
Cr
 
2
O
 
4
Related Minerals - Hey's Index Grouping:

- +
7.19.1Bixbyite
(Mn
3+
 
,Fe
3+
 
)
 
2
O
 
3
7.19.2Janggunite
Mn
 
5-x
(Mn,Fe)
 
1+x
O
 
8
(OH)
 
6
7.19.3Jacobsite
Mn
2+
 
Fe
3+
2
O
 
4
7.19.4Vernadite
(Mn
4+
 
,Fe
3+
 
,Ca,Na)(O,OH)
 
2
 · nH
 
2
O
7.19.5Galaxite
(Mn,Fe,Mg)(Al,Fe)
 
2
O
 
4
7.19.7Manganochromite
(Mn,Fe)(Cr,V)
 
2
O
 
4
7.19.8Zenzénite
Pb
 
3
(Fe,Mn)
 
4
Mn
 
3
O
 
13

Other Names for Filipstadite

Synonyms:
IMA1987-010
Other Languages:
German:Filipstadit
Spanish:Filipstadita

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 Filipstadite

Reference List:

- +
Dunn, P.J., Peacor, D.R., Criddle, A.J. and Stanley, C.J. (1988) Filipstadite, a new Mn-Fe3+-Sb derivative of spinel, from Långban, Sweden.: American Mineralogist: 73: 413-419.

Internet Links for Filipstadite

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    • Localities for Filipstadite

    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
     
    • Värmland
      • Filipstad
    		Amer.Min.(1988) 73, 413-419; 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)
    		GFF 115, 239; Kjell Gatedal
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