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About IngersoniteHide

Fred E. Ingerson
Brownish yellow
Vitreous, Sub-Vitreous
Specific Gravity:
5.42 (Calculated)
Crystal System:
Named in 1988 by Pete J. Dunn, Donald Ralph Peacor, Alan J. Criddle, and Chris J. Stanley in honor of Fred Earl Ingerson [October 28, 1906, in Barstow, Texas, USA - June 11, 1993 Austin, Texas, USA], geochemist of the Geophysical Laboratory of the Carnegie Institution (1935-1947), Chief Geochemist at the Petrology Branch of the United States Geological Survey (1947-1958), and professor of geology at the University of Texas in Austin (1958-1977). His research specialty included fluid inclusion studies, characterization of ore-forming fluids, geothermometry, and petrofabric analysis. "Many honors and accomplishments typify Ingerson’s outstanding career: Honorary Doctor of Science (Hardin-Simmons College, 1942), Day Medal (Geological Society of America, 1955), Distinguished Service Award (U.S. Department of the Interior, 1959), and the Distinguished Alumnus Award (Hardin-Simmons University, 1977). Ingerson was the founder of two major societies and their journals — The Geochemical Society and its publication, Geochimica et Cosmochimica Acta, and the International Association of Geochemistry and Cosmochemistry and its journal Organic Geochemistry. In recognition of the important role he played in establishing these organizations, Earl Ingerson was asked to serve as the first president of each. He held membership, fellowship, and committee service in more than 35 professional societies in 13 nations." (Internet biography, Jackson School of Geosciences, Austin, Texas).
Dimorph of:
Fine-grained irregular brownish yellow aggregates with jacobsite and filipstadite in calcite.

Classification of IngersoniteHide


4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
D : Metal: Oxygen = 1:2 and similar
H : With large (+- medium-sized) cations; sheets of edge-sharing octahedra

1 : A2X2O6(O,OH,F)

24 : Antimonates and Antimonites
4 : Antimonates and antimonites of Mn and Fe

Pronounciation of IngersoniteHide

PlayRecorded byCountry
Jolyon RalphUnited Kingdom

Physical Properties of IngersoniteHide

Vitreous, Sub-Vitreous
Brownish yellow
Brownish yellow
6½ on Mohs scale
5.42 g/cm3 (Calculated)

Optical Data of IngersoniteHide

Uniaxial (-)
RI values:
nω = 1.930 nε = 1.910 - 1.920
Max Birefringence:
δ = 0.020
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Very High

Chemical Properties of IngersoniteHide


Crystallography of IngersoniteHide

Crystal System:
Class (H-M):
3 2 - Trapezohedral
Space Group:
P31 2 1
Cell Parameters:
a = 7.282(2) Å, c = 17.604(4) Å
a:c = 1 : 2.417
Unit Cell V:
808.4 ų

X-Ray Powder DiffractionHide

Powder Diffraction Data:
5.89 Å(20)
3.10 Å(20)
2.965 Å(100)
2.565 Å(40)
1.820 Å(50)
1.810 Å(50)
1.549 Å(60)
1.543 Å(40)

Type Occurrence of IngersoniteHide

Geological Setting of Type Material:
Mn-Fe strataform ore deposit
Associated Minerals at Type Locality:

Synonyms of IngersoniteHide

Other Language Names for IngersoniteHide


Common AssociatesHide

Associated Minerals Based on Photo Data:
3 photos of Ingersonite associated with TephroiteMn2+2SiO4
1 photo of Ingersonite associated with Filipstadite(Fe3+0.5Sb5+0.5)Mn2O4
1 photo of Ingersonite associated with Tegengrenite(Mn3+0.5Sb5+0.5)Mg2O4
1 photo of Ingersonite associated with BaryteBaSO4
1 photo of Ingersonite associated with CalciteCaCO3

Related Minerals - Nickel-Strunz GroupingHide

4.DH.Fluornatropyrochlore(Na,Pb,Ca,REE,U)2Nb2O6FIso. m3m (4/m 3 2/m)
4.DH.Roméite GroupA2(Sb5+)2O6Z
4.DH.OxyplumboroméitePb2Sb2O6OIso. m3m (4/m 3 2/m) : Fd3m
4.DH.Cesiokenopyrochlore□Nb2(O,OH)6Cs1−x (x ∼ 0.20)Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.05BranneriteUTi2O6Mon. 2/m : B2/m
4.DH.15Bariomicrolite (of Hogarth 1977)Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.15Betafite (of Hogarth 1977)(Ca,Na,U)2(Ti, Nb,Ta)2O6Z(OH)Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.15Bismutomicrolite (of Hogarth 1977)Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.15Ceriopyrochlore (of Hogarth 1977)A2Nb2(O,OH)6Z
4.DH.15JixianitePb(W,Fe3+)2(O,OH)7Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.15Hydropyrochlore(H2O,□)2Nb2(O,OH)6(H2O)Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.15Plumbopyrochlore (of Skorobogatova et al.)A2Nb2(O,OH)6Z
4.DH.15Plumbomicrolite (of Hogarth 1977)
4.DH.15Plumbobetafite (of Hogarth 1977)A2-mD2X6-wZ1-n
4.DH.15Stibiomicrolite (of Groat et al.)
4.DH.15Strontiopyrochlore (of Hogarth 1977)A2Nb2(O,OH)6Z
4.DH.15Stannomicrolite (of Hogarth 1977)
4.DH.15Stibiobetafite (of Černý et al.)A2-mD2X6-wZ1-nIso.
4.DH.15Uranpyrochlore (of Hogarth 1977)(Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F)Iso.
4.DH.15Yttropyrochlore (of Hogarth 1977)A2Nb2(O,OH)6Z
4.DH.15Fluornatromicrolite(Na1.5Bi0.5)Ta2O6FIso. m3m (4/m 3 2/m) : Fd3m
4.DH.15Bismutopyrochlore (of Chukanov et al.)(Bi,Ca,U,Pb)2-xNb2(O,OH)6(OH)Amor.
4.DH.15Hydrokenoelsmoreite2W2O6(H2O)Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.20BismutostibiconiteBi(Sb5+,Fe3+)2O7Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.20BindheimitePb2Sb2O6OIso. m3m (4/m 3 2/m) : Fd3m
4.DH.20MonimolitePb2Sb5+2O7Iso. m3m (4/m 3 2/m)
4.DH.25RosiaitePbSb5+2O6Trig. 3m (3 2/m) : P3 1m
4.DH.45PittongiteNa0.22(W,Fe3+)(O,OH)3 · 0.44H2OHex. 6 m2 : P6m2

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

24.4.5SchafarzikiteFe2+Sb3+2O4Tet. 4/mmm (4/m 2/m 2/m) : P42/mbc

Fluorescence of IngersoniteHide

Not fluorescent in UV

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.

References for IngersoniteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Dunn, P.J., Peacor, D.R., Criddle, A.J., Stanley, C.J. (1988) Ingersonite, a new calcium-manganese antimonate related to pyrochlore, from Långban, Sweden. American Mineralogist: 73: 405-412.
Bonazzi, P., Bindi, L. (2007) The crystal structure of ingersonite, Ca3Mn2+Sb5+4O14, and its relationships with pyrochlore. American Mineralogist: 92: 947-953.
Zanazzi, P.F., Chelazzi, L., Bonazzi, P., Bindi, L. (2009) High-pressure structural behavior of ingersonite, Ca3Mn2+Sb45+O14: An in-situ single-crystal X-ray study. American Mineralogist: 94: 352-358.

Internet Links for IngersoniteHide

Localities for IngersoniteHide

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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
  • Örebro County
    • Hällefors
      • Grythyttan
Pavel M. Kartashov analytical data (2013), Ulf Nyberg specimen
  • Värmland County
    • Filipstad
Amer.Min.(1988) 73, 405-412; 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.
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