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Sjögrenite

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Big Photo

Långban, Filipstad, Värmland, Sweden
© Kjell Gatedal

Show Sjögrenite Photos (14)



Formula:
Mg
 
6
Fe
3+
2
(CO
 
3
)(OH)
 
16
 · 4H
 
2
O
System:HexagonalColour:White, yellowish green, ...
Lustre:Vitreous, Waxy, PearlyHardness:2½
Member of:Manasseite Group
Name:Named by Clifford Frondel in 1940 in honor of Stens Anders Hjalmar Sjögren (1856-1922), Professor of Mineralogy, University of Stockholm, Sweden.


Manasseite Group.

Dimorphous with Pyroaurite with which it is often intergrown.

Classification of Sjögrenite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:5/E.01-80
Nickel-Strunz 10th (pending) edition ID:5.DA.45

5 : CARBONATES (NITRATES)
D : Carbonates with additional anions, with H2O
A : With medium-sized cations
Dana 8th edition ID:16b.6.1.3

16b : HYDRATED CARBONATES CONTAINING HYDROXYL OR HALOGEN
6 : AmBn(XO3)pZqxH2O & with (m+n):p = 8:1
Hey's CIM Ref.:11.13.3

11 : Carbonates
13 : Carbonates of Fe
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Type Occurrence of Sjögrenite

Type Locality:Långban, Filipstad, Värmland, Sweden

Physical Properties of Sjögrenite

Lustre:Vitreous, Waxy, Pearly
Diaphaneity (Transparency):Transparent
Colour:White, yellowish green, brownish green, yellowish white, brownish white
Hardness (Mohs):2½
Cleavage:Perfect
{0001}
Density (measured):2.08 - 2.14 g/cm3
Density (calculated):2.11 g/cm3

Crystallography of Sjögrenite

Crystal System:Hexagonal
Class (H-M):6/mmm (6/m 2/m 2/m) - Dihexagonal Dipyramidal
Space Group:P63/mmc {P63/m 2/m 2/c}
Cell Parameters:a = 3.113(3) Å, c = 15.61(1) Å
Ratio:a:c = 1 : 5.014
Unit Cell Volume:V 131.01 ų (Calculated from Unit Cell)
Morphology:Thin plates {0001}, with a hexagonal outline and striated and indistinct lateral faces.
Comment:Z = 1/4
X-Ray Powder Diffraction:
d-spacingIntensity
7.78 (10)
3.90 (6)
2.65 (4)
2.54 (5)
2.39 (3)
2.21 (5)
1.87 (5)

Optical Data of Sjögrenite

Type:Uniaxial (-)
RI values: nω = 1.573 nε = 1.550
Maximum Birefringence:δ = 0.023

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Low

Chemical Properties of Sjögrenite

Formula:
Mg
 
6
Fe
3+
2
(CO
 
3
)(OH)
 
16
 · 4H
 
2
O
Essential elements:C, Fe, H, Mg, O
All elements listed in formula:C, Fe, H, Mg, O

Relationship of Sjögrenite to other Species

Member of:Manasseite Group
Other Members of Group:

- +
Barbertonite
Mg
 
6
(Cr,Al)
 
2
(CO
 
3
)(OH)
 
16
 · 4H
 
2
O
Fougèrite
(Fe
2+
 
,Mg)
 
6
Fe
3+
2
(OH)
 
18
 · 4H
 
2
O
Manasseite
Mg
 
6
Al
 
2
(CO
 
3
)(OH)
 
16
 · 4H
 
2
O
Related Minerals - Nickel-Strunz Grouping):

- +
5.DA.05Dypingite
Mg
 
5
(CO
 
3
)
 
4
(OH)
 
2
 · 5H
 
2
O
5.DA.05Giorgiosite
Mg
 
5
(CO
 
3
)
 
4
(OH)
 
2
 · 5-6H
 
2
O
5.DA.05Hydromagnesite
Mg
 
5
(CO
 
3
)
 
4
(OH)
 
2
 · 4H
 
2
O
5.DA.05Widgiemoolthalite
Ni
 
5
(CO
 
3
)
 
4
(OH)
 
2
 · 5H
 
2
O
5.DA.05UM1986-10-CO:ClHMgMnZn
Mg
 
5
(Zn,Mn)
 
3
(CO
 
3
)
 
2
(OH,Cl)
 
12
 · H
 
2
O
5.DA.05UM1987-01-CO:HMgS
Mg
 
4
(CO
 
3
)
 
2
(OH)
 
2
 · 6H
 
2
O ?
5.DA.10Artinite
Mg
 
2
(CO
 
3
)(OH)
 
2
 · 3H
 
2
O
5.DA.10Indigirite
Mg
 
2
Al
 
2
(CO
 
3
)
 
4
(OH)
 
2
 · 15H
 
2
O
5.DA.10Chlorartinite
Mg
 
2
(CO
 
3
)(OH)Cl · 2H
 
2
O
5.DA.15Otwayite
Ni
 
2
(CO
 
3
)(OH)
 
2
 · H
 
2
O
5.DA.15Zaratite
Ni
 
3
(CO
 
3
)(OH)
 
4
 · 4H
 
2
O
5.DA.20Kambaldaite
NaNi
 
4
(CO
 
3
)
 
3
(OH)
 
3
 · 3H
 
2
O
5.DA.25Callaghanite
Cu
 
2
Mg
 
2
(CO
 
3
)(OH)
 
6
 · 2H
 
2
O
5.DA.30Claraite
(Cu,Zn)
 
3
(CO
 
3
)(OH)
 
4
 · 4H
 
2
O
5.DA.35Hydroscarbroite
Al
 
14
(CO
 
3
)
 
3
(OH)
 
36
 · nH
 
2
O
5.DA.35Scarbroite
Al
 
5
(CO
 
3
)(OH)
 
13
 · 5H
 
2
O
5.DA.40Caresite
Fe
2+
4
Al
 
2
(CO
 
3
)(OH)
 
12
 · 3H
 
2
O
5.DA.40Quintinite
Mg
 
4
Al
 
2
(CO
 
3
)(OH)
 
12
 · H
 
2
O
5.DA.40Charmarite
Mn
2+
4
Al
 
2
(CO
 
3
)(OH)
 
12
 · 3H
 
2
O
5.DA.45Barbertonite
Mg
 
6
(Cr,Al)
 
2
(CO
 
3
)(OH)
 
16
 · 4H
 
2
O
5.DA.45Brugnatellite
Mg
 
6
Fe
3+
 
(CO
 
3
)(OH)
 
13
 · 4H
 
2
O
5.DA.45Chlormagaluminite
(Mg,Fe
2+
 
)
 
4
Al
 
2
(Cl
 
2
,CO
 
3
)(OH)
 
12
 · 2H
 
2
O
5.DA.45Manasseite
Mg
 
6
Al
 
2
(CO
 
3
)(OH)
 
16
 · 4H
 
2
O
5.DA.45Zaccagnaite
Zn
 
4
Al
 
2
(CO
 
3
)(OH)
 
12
 · 3H
 
2
O
5.DA.50Comblainite
Ni
 
6
Co
 
2
(CO
 
3
)(OH)
 
16
 · 4H
 
2
O
5.DA.50Desautelsite
Mg
 
6
Mn
3+
2
(CO
 
3
)(OH)
 
16
 · 4H
 
2
O
5.DA.50Hydrotalcite
Mg
 
6
Al
 
2
(CO
 
3
)(OH)
 
16
 · 4H
 
2
O
5.DA.50Pyroaurite
Mg
 
6
Fe
3+
2
(CO
 
3
)(OH)
 
16
 · 4H
 
2
O
5.DA.50Reevesite
Ni
 
6
Fe
3+
2
(CO
 
3
)(OH)
 
16
 · 4H
 
2
O
5.DA.50Stichtite
Mg
 
6
Cr
 
2
(CO
 
3
)(OH)
 
16
 · 4H
 
2
O
5.DA.50Takovite
Ni
 
6
Al
 
2
(CO
 
3
)(OH)
 
16
 · 4H
 
2
O
5.DA.50UM1998-10-CO:CoHNi
Co
 
6
Fe
 
2
(CO
 
3
)(OH)
 
16
 · 4H
 
2
O ?
5.DA.55Coalingite
Mg
 
10
Fe
3+
2
(CO
 
3
)(OH)
 
24
 · 2H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
11.13.1Siderite
FeCO
 
3
11.13.2Pyroaurite
Mg
 
6
Fe
3+
2
(CO
 
3
)(OH)
 
16
 · 4H
 
2
O
11.13.4Brugnatellite
Mg
 
6
Fe
3+
 
(CO
 
3
)(OH)
 
13
 · 4H
 
2
O
11.13.5Coalingite
Mg
 
10
Fe
3+
2
(CO
 
3
)(OH)
 
24
 · 2H
 
2
O
11.13.6Ankerite
Ca(Fe
2+
 
,Mg)(CO
 
3
)
 
2

Other Names for Sjögrenite

Synonyms:
SjoegreniteSjogrenite (of Frondel)
Other Languages:
German:Sjögrenit
Russian:Шегренит
Spanish:Sjögrenita

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 Sjögrenite

Reference List:

- +
Aminoff and Broomé (1930), Svenska Vetenskapsakademien, Stockholm, Handlingar: 9: 3, no. 5: 23.

Frondel, C. (1941): Constitution and polymorphism of the pyroaurite and sjögrenite groups. American Mineralogist 26, 295-315.

Palache, Charles, Harry Berman & Clifford Frondel (1944), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Volume I: Elements, Sulfides, Sulfosalts, Oxides. John Wiley and Sons, Inc., New York. 7th edition, revised and enlarged: 659-660.

Allmann, R. and H.-H. Lohse (1966): Die Kristallstruktur des Sjögrenits und eines Umwandlungsproduktes des Koenenits (= Chlor-Manasseits). Neues Jahrb. Mineral., Monatsh., 161–181.

Ingram, L. and H.F.W. Taylor (1967): The crystal structures of sjögrenite and pyroaurite. Mineral. Mag., 36, 465–479.

Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva (1983): 112: 617.

Ivanov, O.K., Y.V. Mozzherin, and V.I. Vilisov (1986): New data on sjögrenite. Izvestiya Akad. Nauk Kazakh. SSR, Geol. Ser. 1, 40–45 (in Russian).


Internet Links for Sjögrenite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Sjögrenite details from Handbook of Mineralogy (PDF)
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    • Localities for Sjögrenite

    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.
    Australia
     
    • Tasmania
      • Corinna-Savage River district
    		Bottrill & Taheri, 2008, Savage River mine, Unpub. Rept, Mineral Resources Tasmania
      • Huon district
        • Weld river
    		Bottrill & Baker (in prep) Catalogue of minerals of Tasmania
      • Trial Harbour district
    		Bottrill & Baker (in prep) Catalogue of minerals of Tasmania
      • Zeehan district
        • Mt Heemskirk mineral field
    		Bottrill & Baker (in prep) Catalogue of minerals of Tasmania
    Canada
     
    • Québec
      • Chaudière-Appalaches
        • Les Appalaches RCM
          • Saint-Julien
    		SABINA, A.P. (1967) Geological Survey of canada Paper, 66-51, 170p
    Germany
     
    • Bavaria
      • Upper Palatinate
        • Oberpfälzer Wald
          • Oberviechtach
            • Winklarn
    		Wittern: "Mineralfundorte in Deutschland", 2001
    Italy
     
    • Sardinia
      • Cagliari Province
        • Teulada
    		Conti L, Cozupoli D., Lombardi G, Traversa g. 1970 - Segnalazione di Sjögrenite nelle contattiti presso Teulada (Sardegna meridionale) Per. Min. Roma, vol. 39 A, (special volume), pp. 119-127
    • Veneto
      • Vicenza Province
        • Astico Valley
          • Cogollo del Cengio
            • Pedescala
    		Boscardin M.,Daleffe A.,Rocchetti I., Zordan A. (2011) " Minerali del Vicentino - Aggiornamenti, località e nuove determinazioni " Museo di Archeologia e Scienze Naturali “G. Zannato” – Montecchio Maggiore (Vicenza), pp.183
        • Posina
          • Borcola Pass
    		Boscardin M.,Daleffe A.,Rocchetti I., Zordan A. (2011) " Minerali del Vicentino - Aggiornamenti, località e nuove determinazioni " Museo di Archeologia e Scienze Naturali “G. Zannato” – Montecchio Maggiore (Vicenza), pp.183
          • Mt. Pasubio
    		Boscardin M.,Daleffe A.,Rocchetti I., Zordan A. (2011) " Minerali del Vicentino - Aggiornamenti, località e nuove determinazioni " Museo di Archeologia e Scienze Naturali “G. Zannato” – Montecchio Maggiore (Vicenza), pp.183
    Japan
     
    • Honshu Island
      • Chubu Region
        • Aichi prefecture
          • Shinshiro city
    Alfredo Petrov - unpublished document - 2007
    Kazakhstan
     
    • Northern Kazakhstan Province (Soltüstik Qazaqstan Oblysy; Severo-Kazakhstanskaya Oblast')
      • Zlatogorsk
        • Zlatogorsk ultramafic intrusion
    		Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
    Morocco
     
    • Souss-Massa-Draâ Region
      • Ouarzazate Province
        • Tazenakht
          • Bou Azer District (Bou Azzer District)
            • Ightem
    		Favreau, G. and Dietrich, J. E. (2006). Die Mineralien von Bou Azzer. Lapis 31(7/8), 27-68
    Russia
     
    • Eastern-Siberian Region
      • Prebaikalia (Pribaikal'e)
        • Irkutskaya Oblast'
          • Zheleznogorsk
    		Mazurov, M.P., Grishina, S.N., Istomin, V.E., and Titov, A.T. (2007): Geology of Ore Deposits 49(4), 271-284.; Mazurov et al (2007) Geology of Ore Deposits, 49, 271–284.
    • Northern Region
      • Murmanskaja Oblast'
        • Kola Peninsula
          • Kovdor Massif
    		http://maurice.strahlen.org/kola/kovdor.htm
    Sweden
     
    • Värmland
      • Filipstad
    		Progr.Abstr.Min.Soc.Amer.(1940) p. 6; 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.
        • Persberg district
    		Östra Värmlands Mineral Society,Långban,Sweden
    UK
     
    • Scotland
      • Shetland Islands
        • Unst
          • Baltasound-Haroldswick area
    		Dr Stephen Moreton collection.
    USA
     
    • California
      • San Francisco Co.
        • San Francisco
    		Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 340; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 199.
      • Sonoma Co.
        • Healdsburg
    		Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 200.
    www.minresco.com/syst/s.htm
    • New Jersey
      • Sussex Co.
        • Franklin Mining District
          • Ogdensburg
            • Sterling Hill
    		Dunn, P.J. & Leavens, Min.Rec.:12:371-372: (1981); Dunn(1995):Pt4:625.
    Mineral and/or Locality
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