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Tegengrenite

A valid IMA mineral species
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08586830017271928735649.jpg
Tegengrenite, etc.

Kitteln Mine, Nordmark Odal Field, Filipstad, Värmland County, Sweden
06609710017271928767623.jpg
Tegengrenite, etc.

Nordmark Odal Field, Filipstad, Värmland County, Sweden
06179220017271928815997.jpg
Tegengrenite, etc.

Kitteln Mine, Nordmark Odal Field, Filipstad, Värmland County, Sweden
08586830017271928735649.jpg
Tegengrenite, etc.

Kitteln Mine, Nordmark Odal Field, Filipstad, Värmland County, Sweden
06609710017271928767623.jpg
Tegengrenite, etc.

Nordmark Odal Field, Filipstad, Värmland County, Sweden
06179220017271928815997.jpg
Tegengrenite, etc.

Kitteln Mine, Nordmark Odal Field, Filipstad, Värmland County, Sweden
08586830017271928735649.jpg
Tegengrenite, etc.

Kitteln Mine, Nordmark Odal Field, Filipstad, Värmland County, Sweden
06609710017271928767623.jpg
Tegengrenite, etc.

Nordmark Odal Field, Filipstad, Värmland County, Sweden
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About TegengreniteHide

08582470017271928862392.jpg
Felix R. Tegengren
Formula:
(Mn3+0.5Sb5+0.5)Mg2O4
Colour:
Deep ruby red
Lustre:
Sub-Adamantine
Specific Gravity:
4.58 (Calculated)
Crystal System:
Trigonal
Name:
Named in honor of Felix Reinhold Tegengren (5 May 1884, Vasa, Finland - 2 March 1980, Sollentuna, Sweden), geologist and expert on ore deposits of Sweden and China.
The Mn3+ analogue of filipstadite.

Chemically somewhatvsimilar to manganoschafarzikite, melanostibite, garpenbergite.


Unique IdentifiersHide

Mindat ID:
7072
Long-form identifier:
mindat:1:1:7072:6

IMA Classification of TegengreniteHide

IMA status:
Approved
IMA status notes:
Redefined by the IMA
Approval year:
1999
First published:
2000
Approval history:
Redefined by IMA as (Mn3+0.5Sb5+0.5)Mg2O04 (Bosi et al., 2019).
Type description reference:
Holtstam, Dan, Larsson, Ann-Kristin (2000) Tegengrenite, a new, rhombohedral spinel-related Sb mineral from the Jakobsberg Fe-Mn deposit, Värmland, Sweden. American Mineralogist, 85 (9) 1315-1320 doi:10.2138/am-2000-8-926

Classification of TegengreniteHide

Strunz-mindat (2026):
4.BB.20

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

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference for Standard
TegIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of TegengreniteHide

Lustre:
Sub-Adamantine
Transparency:
Translucent
Colour:
Deep ruby red
Tenacity:
Brittle
Cleavage:
None Observed
Fracture:
Conchoidal
Density:
4.58 g/cm3 (Calculated)

Optical Data of TegengreniteHide

Anisotropism:
observed
Reflectivity:
WavelengthR1 (%)
470nm10.4%
546nm10.0%
589nm9.9%
650nm9.8%


Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 10.4%.
Colour in reflected light:
gray
Internal Reflections:
orange-red

Chemistry of TegengreniteHide

Mindat Formula:
(Mn3+0.5Sb5+0.5)Mg2O4
Element Weights:
Element% weight
O56.832 %
Mg43.168 %
Mn0.000 %
Sb0.000 %

Calculated from ideal end-member formula.
O
Mg
Mn
Sb
Elements listed:
Mg, Mn, O, Sb - search for minerals with similar chemistry

Crystallography of TegengreniteHide

Crystal System:
Trigonal
Class (H-M):
3 - Pyramidal
Space Group:
R3
Cell Parameters:
a = 16.0825(9) Å, c = 14.8144(8) Å
Ratio:
a:c = 1 : 0.921
Unit Cell V:
3,318.35 ų (Calculated from Unit Cell)
Z:
42
Morphology:
Pseudocubic

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
4.98 Å(20)
4.32 Å(19)
4.24 Å(18)
3.052 Å(33)
2.608 Å(100)
2.162 Å(28)
1.665 Å(30)
1.531 Å(26)
1.527 Å(29)

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
High-? alteration and/or metamorphism
32 : Ba/Mn/Pb/Zn deposits, including metamorphic deposits

Type Occurrence of TegengreniteHide

Type Locality:
ⓘ Jakobsberg Mine, Jakobsberg ore field, Nordmark mining district, Filipstad, Värmland County, Sweden
General Appearance of Type Material:
Deep red octahedra up to 150 μm in size
Place of Conservation of Type Material:
Swedish Museum of Natural History, Stockholm (980408).
Empirical Formula of Type Material:
Mg2+1.22Mn2+0.82Zn0.07(Sb0.50Mn3+0.23Si0.06Ti0.04Al0.03Fe0.02)O4
Chemical Analysis of Type Material:
MgO21.83 %
Al2O30.76 %
SiO21.70 %
Sb2O536.13 %
TiO21.40 %
Fe2O30.78 %
MnO25.74 %
Mn2O38.14 %
ZnO2.66 %
Total:99.14 %
Geological Setting of Type Material:
Manganese ore
Associated Minerals at Type Locality:
BarytocalciteBindheimiteBruciteCalciteCerussite
ClinohumiteDolomiteHausmanniteKinoshitaliteNative Copper
Reference:
Holtstam, Dan, Larsson, Ann-Kristin (2000) Tegengrenite, a new, rhombohedral spinel-related Sb mineral from the Jakobsberg Fe-Mn deposit, Värmland, Sweden. American Mineralogist, 85 (9) 1315-1320 doi:10.2138/am-2000-8-926

Synonyms of TegengreniteHide

Other Language Names for TegengreniteHide

Relationship of Tegengrenite to other SpeciesHide

Member of:
Ulvöspinel Subgroup > Oxyspinel Group > Spinel Supergroup
Other Members of Ulvöspinel Subgroup:
AhrensiteSiFe2O4Iso. m3m(4/m32/m)
BrunogeieriteGe4+Fe2+2O4Iso. m3m(4/m32/m) : Fd3m
Filipstadite(Fe3+0.5Sb5+0.5)Mn2O4Iso.
Qandilite(Mg,Fe3+)2(Ti,Fe3+,Al)O4Iso. m3m(4/m32/m) : Fd3m
Ringwoodite(Mg,Fe2+)2SiO4Iso. m3m(4/m32/m) : Fd3m
UlvöspinelTiFe2+2O4Iso. m3m(4/m32/m) : Fd3m

Common AssociatesHide

Associations Based on Photo Data:
4 photos of Tegengrenite associated with HausmanniteMn2+Mn3+2O4
4 photos of Tegengrenite associated with ManganositeMnO
1 photo of Tegengrenite associated with PyrochroiteMn(OH)2
1 photo of Tegengrenite associated with IngersoniteCa3Mn2+Sb5+4O14
1 photo of Tegengrenite associated with Filipstadite(Fe3+0.5Sb5+0.5)Mn2O4
1 photo of Tegengrenite associated with Katoptrite(Mn2+,Mg)13(Al,Fe3+)4Sb5+2(SiO4)2O20
1 photo of Tegengrenite associated with CalciteCaCO3

Related Minerals - Strunz-mindat GroupingHide

4.BB.ChenmingiteFeCr2O4Orth. mmm(2/m2/m2/m) : Pnma
4.BB.ThermaerogeniteCuAl2O4Iso. m3m(4/m32/m) : Fd3m
4.BB.ChukocheniteLiAl5O8Orth. mmm(2/m2/m2/m) : Imma
4.BB.Elgoresyite(Mg5Si2)O9Mon. 2/m : B2/m
4.BB.JianmuiteZrTi4+Ti3+5Al3O16Tet. 4 : I4
4.BB.DellagiustaiteV2+Al2O4Iso. m3m(4/m32/m) : Fd3m
4.BB.GarpenbergiteMn6◻AsSbO10(OH)2Orth. mmm(2/m2/m2/m)
4.BB.MagnéliiteTi3+2Ti4+2O7Tric. 1 : P1
4.BB.JordanówiteZr(Ti3+Zr)Ti3+4AlO16Tet. 4/m : I41/a
4.BB.05Qandilite(Mg,Fe3+)2(Ti,Fe3+,Al)O4Iso. m3m(4/m32/m) : Fd3m
4.BB.05ChromiteFe2+Cr3+2O4Iso. m3m(4/m32/m) : Fd3m
4.BB.05Filipstadite(Fe3+0.5Sb5+0.5)Mn2O4Iso.
4.BB.05JacobsiteMn2+Fe3+2O4Iso. m3m(4/m32/m) : Fd3m
4.BB.05WernerkrauseiteCa(Fe3+,Mn3+)2Mn4+O6Orth. mmm(2/m2/m2/m) : Pnma
4.BB.05HarmuniteCaFe2O4Orth. mmm(2/m2/m2/m) : Pbcm
4.BB.05ZincochromiteZnCr2O4Iso. m3m(4/m32/m) : Fd3m
4.BB.05Deltalumite(Al0.67◻0.33)Al2O4Tet. 42m : P4m2
4.BB.05FrankliniteZn2+Fe3+2O4Iso. m3m(4/m32/m) : Fd3m
4.BB.05CochromiteCoCr2O4Iso. m3m(4/m32/m) : Fd3m
4.BB.05'Nichromite'(Ni,Co,Fe)(Cr,Fe,Al)2O4Iso. m3m(4/m32/m) : Fd3m
4.BB.05HercyniteFe2+Al2O4Iso. m3m(4/m32/m) : Fd3m
4.BB.05GahniteZnAl2O4Iso. m3m(4/m32/m) : Fd3m
4.BB.05GalaxiteMn2+Al2O4Iso. m3m(4/m32/m) : Fd3m
4.BB.05GuiteCo2+Co3+2O4Iso.
4.BB.05CoulsoniteFe2+V3+2O4Iso. m3m(4/m32/m) : Fd3m
4.BB.05VuorelaineniteMn2+V3+2O4Iso. m3m(4/m32/m) : Fd3m
4.BB.05SpinelMgAl2O4Iso. m3m(4/m32/m) : Fd3m
4.BB.05CuprospinelCu2+Fe3+2O4Iso. m3m(4/m32/m) : Fd3m
4.BB.05ManganochromiteMn2+Cr2O4Iso. m3m(4/m32/m) : Fd3m
4.BB.05MagnesiocoulsoniteMgV2O4Iso. m3m(4/m32/m)
4.BB.05TrevoriteNi2+Fe3+2O4Iso. m3m(4/m32/m) : Fd3m
4.BB.05MagnesiochromiteMgCr2O4Iso. m3m(4/m32/m) : Fd3m
4.BB.05MagnesioferriteMgFe3+2O4Iso. m3m(4/m32/m) : Fd3m
4.BB.05MagnetiteFe2+Fe3+2O4Iso. m3m(4/m32/m) : Fd3m
4.BB.05UlvöspinelTiFe2+2O4Iso. m3m(4/m32/m) : Fd3m
4.BB.10HausmanniteMn2+Mn3+2O4Tet. 4/mmm(4/m2/m2/m) : I41/amd
4.BB.10HetaeroliteZnMn2O4Tet. 4/mmm(4/m2/m2/m) : I41/amd
4.BB.10Manganostibite(Mn,Fe)7SbAsO12Orth. mmm(2/m2/m2/m)
4.BB.15Titanomaghemite(Ti4+0.5◻0.5)Fe3+2O4Iso. 432 : P4332
4.BB.15Maghemite(Fe3+0.67◻0.33)Fe3+2O4Iso. 432 : P4132
4.BB.25XieiteFe2+Cr2O4Orth. mmm(2/m2/m2/m)
4.BB.30CarmeltaziteZrAl2Ti4O11Orth. mmm(2/m2/m2/m) : Pnma
4.BB.35FeiiteFe2+2(Fe2+Ti4+)O5Orth. mmm(2/m2/m2/m) : Cmcm
4.BB.40MaohokiteMgFe2O4Orth. mmm(2/m2/m2/m) : Pnma
4.BB.45Tschaunerite (Fe2+)(Fe2+Ti4+)O4Orth. mmm(2/m2/m2/m) : Cmcm

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for TegengreniteHide

References for TegengreniteHide

Localities for TegengreniteHide

Showing 3 localities.

This 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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Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Sweden
 
  • Värmland County
    • Filipstad
      • Långban Ore District
Gatedal (2003)
      • Nordmark mining district
        • Jakobsberg ore field
Holtstam et al. (2000) +5 other references
Gatedal (n.d.) +1 other reference
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