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Dessauite-(Y)

A valid IMA mineral species
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00094650017271928568044.jpg
Dessauite-(Y)

Mont-Cenis gypsum outcrop, Mont-Cenis Plateau, Lanslebourg-Mont-Cenis, Val-Cenis, Saint-Jean-de-Maurienne, Savoie, Auvergne-Rhône-Alpes, France
00152850017271928596208.jpg
Dessauite-(Y)

Trouée des Fées, Mont-de-Lans, Les Deux Alpes, Grenoble, Isère, Auvergne-Rhône-Alpes, France
04908570017271928635497.jpg
Dessauite-(Y), etc.

Fibbia, Fontana, Airolo, Leventina, Ticino, Switzerland
00094650017271928568044.jpg
Dessauite-(Y)

Mont-Cenis gypsum outcrop, Mont-Cenis Plateau, Lanslebourg-Mont-Cenis, Val-Cenis, Saint-Jean-de-Maurienne, Savoie, Auvergne-Rhône-Alpes, France
00152850017271928596208.jpg
Dessauite-(Y)

Trouée des Fées, Mont-de-Lans, Les Deux Alpes, Grenoble, Isère, Auvergne-Rhône-Alpes, France
04908570017271928635497.jpg
Dessauite-(Y), etc.

Fibbia, Fontana, Airolo, Leventina, Ticino, Switzerland
00094650017271928568044.jpg
Dessauite-(Y)

Mont-Cenis gypsum outcrop, Mont-Cenis Plateau, Lanslebourg-Mont-Cenis, Val-Cenis, Saint-Jean-de-Maurienne, Savoie, Auvergne-Rhône-Alpes, France
00152850017271928596208.jpg
Dessauite-(Y)

Trouée des Fées, Mont-de-Lans, Les Deux Alpes, Grenoble, Isère, Auvergne-Rhône-Alpes, France
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About Dessauite-(Y)Hide

08726960017271928683752.jpg
Gabor Dessau
Formula:
(Sr,Pb)(Y,U)(Ti,Fe3+)20O38
Colour:
black
Lustre:
Metallic
Hardness:
6½ - 7
Specific Gravity:
4.68 (Calculated)
Crystal System:
Trigonal
Name:
For Gabor Dessau (27 June 1907 in Perugia, Italy - 16 November 1983 in Pisa, Italy), professor of ore mineralogy at the University of Pisa, Italy.
A member of the Crichtonite Group. Sr analogue of gramaccioliite-(Y). Possibly the Y analogue of crichtonite, mapiquiroite, UM2006-05-O:CaFeKMnNaREESrTiZr, and UM2006-06-O:CaFeKMnNaREESrTiZr.


Unique IdentifiersHide

Mindat ID:
6902
Long-form identifier:
mindat:1:1:6902:7

IMA Classification of Dessauite-(Y)Hide

IMA status:
Approved
IMA Formula:
Sr2+(Y,U4+,Mn2+)Fe3+2(Ti4+,Fe3+,Cr3+,V5+)18(O,OH)38
Approval year:
1994

Classification of Dessauite-(Y)Hide

Strunz-mindat (2026):
4.CC.40

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
C : Metal: Oxygen = 2: 3,3: 5, and similar
C : With large and 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
Dss-YIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of Dessauite-(Y)Hide

Lustre:
Metallic
Transparency:
Opaque
Colour:
Black
Hardness:
6½ - 7 on Mohs scale
Hardness:
VHN100=1105 - 1782 - Vickers
Cleavage:
None Observed
Fracture:
Conchoidal
Density:
4.68 g/cm3 (Calculated)

Optical Data of Dessauite-(Y)Hide

Anisotropism:
weak
Bireflectance:
low
Colour in reflected light:
ash grey with pale bluish tones
Internal Reflections:
not observed
Pleochroism:
Weak

Chemistry of Dessauite-(Y)Hide

Mindat Formula:
(Sr,Pb)(Y,U)(Ti,Fe3+)20O38
Element Weights:
Element% weight
Ti54.961 %
O34.904 %
Y5.104 %
Sr5.030 %

Calculated from ideal end-member formula.
Elements listed:
Fe, O, Pb, Sr, Ti, U, Y - search for minerals with similar chemistry

Crystallography of Dessauite-(Y)Hide

Crystal System:
Trigonal
Class (H-M):
3 - Rhombohedral
Space Group:
R3
Cell Parameters:
a = 9.197 Å
α = 68.75°
Unit Cell V:
651.39 ų (Calculated from Unit Cell)
Comment:
Hexagonal setting: a = 10.373(3), 20.746(6) Å (type material).

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0001929Dessauite-(Y)Orlandi P, Pasero M, Duchi G, Olmi F (1997) Dessauite, (Sr,Pb)(Y,U)(Ti,Fe)20O38, a new mineral of the crichtonite group from Buca della Vena mine, Tuscany, Italy American Mineralogist 82 807-81119970293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.412 Å(m)
3.064 Å(vw)
2.998 Å(w)
2.902 Å(m)
2.846 Å(mw)
2.758 Å(vw)
2.624 Å(vw)
2.499 Å(mw)
2.431 Å(vw)
2.250 Å(w)
2.140 Å(w)
1.916 Å(mw)
1.805 Å(mw)
1.712 Å(vw)
1.603 Å(m)
1.548 Å(w)
1.511 Å(w)
1.441 Å(m)
Locality:
Buca della Vena Mine, Pontestazzemese, Stazzema, Lucca Province, Tuscany, Italy
Comments:
Intensity observed.

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Near-surface Processes
23 : Subaerial aqueous alteration by non-redox-sensitive fluids (see also #47)
High-? alteration and/or metamorphism
32 : Ba/Mn/Pb/Zn deposits, including metamorphic deposits
Stage 4b: Highly evolved igneous rocks>3.0
35 : Ultra-alkali and agpaitic igneous rocks
Stage 5: Initiation of plate tectonics<3.5-2.5
40 : Regional metamorphism (greenschist, amphibolite, granulite facies)

Type Occurrence of Dessauite-(Y)Hide

Type Locality:
ⓘ Buca della Vena Mine, Pontestazzemese, Stazzema, Lucca Province, Tuscany, Italy
General Appearance of Type Material:
Small, flattened rhombohedral xls, tabular, with hexagonal outline. Dimensions: diameter up to 1 mm, thickness up to 0.2 mm.
Place of Conservation of Type Material:
Museo di Storia Naturale e del Territorio, University of Pisa, (catalog no. 16385).
Geological Setting of Type Material:
Calcite veins hosted within dolomitic marble ("Grezzoni" formation)

Synonyms of Dessauite-(Y)Hide

Other Language Names for Dessauite-(Y)Hide

Simplified Chinese:锶钇铁钛矿
Spanish:Dessauita
Traditional Chinese:鍶釔鐵鈦礦

Relationship of Dessauite-(Y) to other SpeciesHide

Member of:
Crichtonite Group
Other Members of Crichtonite Group:
AlmeidaitePbZn2(Mn,Y)(Ti,Fe3+)18O37(OH,O)Trig. 3 : R3
BotuobinskiteSrFe2+Mg2(Cr3+6Ti4+12)[O36(OH)2]Trig. 3 : R3
Cleusonite(Pb,Sr)(U4+,U6+)(Fe2+,Zn)2(Ti,Fe2+,Fe3+)18(O,OH)38Trig. 3 : R3
CrichtoniteSr(Mn,Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH)38Trig. 3 : R3
Davidite-(Ce)Ce(Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH,F)38Trig. 3 : R3
Davidite-(La)La(Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH,F)38Trig. 3 : R3
'Davidite-(Y)'(La,Ce,Na,Ca,Pb)(Y,Fe2+,◻)(Fe2+,Mn2+)2(Ti,Fe3+,Nb,Zr)18O38 (hypothetical)Trig.
Gramaccioliite-(Y)(Pb,Sr)(Y,Mn)Fe3+2(Ti,Fe3+)18O38Trig. 3 : R3
Haitaite-(La)LaU4+Fe3+2(Ti13Fe2+4Fe3+)O38Trig. 3 : R3
LandauiteNaMnZn2(Ti,Fe)6Ti12O38Trig. 3 : R3
Lindsleyite(Ba,Sr)(Zr,Ca)(Fe,Mg)2(Ti,Cr,Fe)18O38Trig.
Loveringite(Ca,Ce,La)(Zr,Fe)(Mg,Fe)2(Ti,Fe,Cr,Al)18O38Trig. 3 : R3
Mapiquiroite(Sr,Pb)(U,Y)Fe2(Ti,Fe3+,Cr3+)18O38Trig. 3 : R3
Mathiasite(Mg,Cr,Fe,Ca,K)2(Ti,Zr,Cr,Fe)5O12Trig. 3 : R3
Mianningite(◻,Pb,Ce,Na)(U4+,Mn,U6+)Fe3+2 (Ti,Fe3+)18O38Trig. 3 : R3
MirnyiteSrZr4+Mg2(Cr3+6Ti4+12)O38Trig. 3 : R3
PaseroitePbMn2+(Mn2+,Fe3+)2(V5+,Ti,◻)18O38 Trig. 3 : R3
SaranovskiteSrCaFe2+2(Cr4Ti2)Ti12O38Trig. 3 : R3
SenaitePb(Mn,Y,U)(Fe,Zn)2(Ti,Fe,Cr,V)18(O,OH)38Trig. 3 : R3
'UM1987-03-O:FePbTiU'~(U,Pb)(Ti,Fe3+,Fe2+,Mn)21O38Trig. 3 : R3
'UM2003-08-O:AlCaFeREEScTiV'(Ca,Ce)Sc(Ti,V,Fe,Al)20O38
'UM2006-05-O:CaFeKMnNaREESrTiZr'(Sr,Na,K,REE)(Ca,Zr,Mn)(Ti,Fe)18Fe2O38
'UM2006-06-O:CaFeKMnNaREESrTiZr'(Sr,Na,K,REE)(Zr,Ca,Mn)(Ti,Fe)18Fe2O38
'UM2006-07-O:CaFeKMnNaREESrTiZr'(Na,Sr,K,REE)(Ca,Zr,Mn)(Ti,Fe)18Fe2O38
'UM2006-08-O:CaFeKMnNaREESrTiZr'(Na,Sr,K,REE)(Zr,Ca,Mn)(Ti,Fe)18Fe2O38
'UM2006-09-O:CaFeMnREESrTiZr'(Ce,Sr,REE)(Ca,Mn,Zr)Fe2(Ti,Fe)18O38
'Unnamed (HBU UK-4)'NaFe2+Zn2(Ti,Fe3+,Nb)6Ti12O38Trig. 3 : R3

Common AssociatesHide

Associations Based on Photo Data:
4 photos of Dessauite-(Y) associated with RutileTiO2
2 photos of Dessauite-(Y) associated with CrichtoniteSr(Mn,Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH)38
2 photos of Dessauite-(Y) associated with SenaitePb(Mn,Y,U)(Fe,Zn)2(Ti,Fe,Cr,V)18(O,OH)38
2 photos of Dessauite-(Y) associated with AlbiteNa(AlSi3O8)
1 photo of Dessauite-(Y) associated with ClinochloreMg5Al(AlSi3O10)(OH)8

Related Minerals - Strunz-mindat GroupingHide

4.CC.XuiteCa3Fe3+2[(AlO3(OH)]3Iso. m3m(4/m32/m)
4.CC.Yttriaite-(Y)Y2O3Iso. m3(2/m3)
4.CC.AllendeiteSc4Zr3O12Trig. 3 : R3
4.CC.ChlorkyuygeniteCa12Al14O32[(H2O)4Cl2]Iso. 43m : I43d
4.CC.OboniobiteMg4Nb2O9Trig. 3m(32/m) : P3c1
4.CC.BotuobinskiteSrFe2+Mg2(Cr3+6Ti4+12)[O36(OH)2]Trig. 3 : R3
4.CC.MirnyiteSrZr4+Mg2(Cr3+6Ti4+12)O38Trig. 3 : R3
4.CC.Haitaite-(La)LaU4+Fe3+2(Ti13Fe2+4Fe3+)O38Trig. 3 : R3
4.CC.ShagamiteKFe11O17Hex. 6/mmm(6/m2/m2/m) : P63/mmc
4.CC.BitikleiteCa3(Sb5+Sn4+)[AlO4]3Iso. m3m(4/m32/m) : Ia3d
4.CC.Anzaite-(Ce)Ce3+ 4Fe2+Ti6O18 (OH)2Mon. 2/m : B2/m
4.CC.Heamanite-(Ce)(K0.5Ce0.5)TiO3Iso. m3m(4/m32/m)
4.CC.Priscillagrewite-(Y)(Ca2Y)Zr2(AlO4)3Iso.
4.CC.StranditePb3Mn3+4Mn4+3O15Hex. 6/mmm(6/m2/m2/m) : P63/mcm
4.CC.SaranovskiteSrCaFe2+2(Cr4Ti2)Ti12O38Trig. 3 : R3
4.CC.05ChrombismiteBi3+16Cr6+O27Iso. m3m(4/m32/m)
4.CC.10FreudenbergiteNa2(Ti,Fe)8O16Mon.
4.CC.10FluormayeniteCa12Al14O32F2Iso. 43m : I43d
4.CC.10FluorkyuygeniteCa12Al14O32[(H2O)4F2]Iso. 43m : I43d
4.CC.15GrossiteCaAl4O7Mon. 2/m : B2/b
4.CC.17GoldschmidtiteKNbO3Iso. m3m(4/m32/m) : Pm3m
4.CC.20'Unnamed (HBU UK-4)'NaFe2+Zn2(Ti,Fe3+,Nb)6Ti12O38Trig. 3 : R3
4.CC.20ChlormayeniteCa12Al14O32[◻4Cl2]Iso. 43m : I43d
4.CC.20PaseroitePbMn2+(Mn2+,Fe3+)2(V5+,Ti,◻)18O38 Trig. 3 : R3
4.CC.20Mianningite(◻,Pb,Ce,Na)(U4+,Mn,U6+)Fe3+2 (Ti,Fe3+)18O38Trig. 3 : R3
4.CC.20'UM1987-03-O:FePbTiU'~(U,Pb)(Ti,Fe3+,Fe2+,Mn)21O38Trig. 3 : R3
4.CC.22GoreriteCaAlFe3+11O19Hex. 6/mmm(6/m2/m2/m) : P63/mmc
4.CC.22KahlenbergiteKAl11O17Hex. 6/mmm(6/m2/m2/m) : P63/mmc
4.CC.25HopmanniteBa2(Ti5Fe)O13Mon. 2/m : B2/m
4.CC.25NixoniteNa2Ti6O13Mon. 2/m : B2/m
4.CC.25YafsoaniteCa3Te6+2(ZnO4)3Iso. m3m(4/m32/m) : Ia3d
4.CC.30LatrappiteCa2NbFe3+O6Orth. mmm(2/m2/m2/m) : Pnma
4.CC.30NatroniobiteNaNbO3Mon.
4.CC.30PerovskiteCaTiO3Orth. mmm(2/m2/m2/m) : Pnma
4.CC.30LueshiteNaNbO3Orth. mmm(2/m2/m2/m)
4.CC.30BariolakargiiteBaZrO3Iso. m3m(4/m32/m) : Pm3m
4.CC.30BarioperovskiteBaTiO3Orth. mm2 : Amm2
4.CC.30MegawiteCaSnO3Orth. mmm(2/m2/m2/m) : Pban
4.CC.30LakargiiteCa(Zr,Sn,Ti)O3Orth. mmm(2/m2/m2/m) : Pnma
4.CC.32UsturiteCa3(Sb5+Zr)[Fe3+O4]3Iso. m3m(4/m32/m) : Ia3d
4.CC.32ElbrusiteCa3(U6+0.5Zr1.5)[Fe3+O4]3Iso. m3m(4/m32/m) : Ia3d
4.CC.32MonteneveiteCa3Sb5+2(Fe3+2Fe2+)O12Iso. m3m(4/m32/m) : Ia3d
4.CC.32DzhuluiteCa3(Sb5+Sn4+)[Fe3+O4]3Iso. m3m(4/m32/m) : Ia3d
4.CC.35TausoniteSrTiO3Iso. 43m
4.CC.35Loparite(Na,REE)2Ti2O6Iso. m3m(4/m32/m)
4.CC.35Panguite(Ti,Al,Sc,Mg,Zr,Ca)1.8O3Orth. mmm(2/m2/m2/m) : Pbca
4.CC.35Isolueshite(Na,La)NbO3Iso. m3m(4/m32/m) : Pm3m
4.CC.35MacedonitePbTiO3Tet. 4/mmm(4/m2/m2/m) : P4/nmm
4.CC.37PauloabibiteNaNbO3Trig. 3 : R3
4.CC.40LandauiteNaMnZn2(Ti,Fe)6Ti12O38Trig. 3 : R3
4.CC.40Mathiasite(Mg,Cr,Fe,Ca,K)2(Ti,Zr,Cr,Fe)5O12Trig. 3 : R3
4.CC.40SenaitePb(Mn,Y,U)(Fe,Zn)2(Ti,Fe,Cr,V)18(O,OH)38Trig. 3 : R3
4.CC.40Gramaccioliite-(Y)(Pb,Sr)(Y,Mn)Fe3+2(Ti,Fe3+)18O38Trig. 3 : R3
4.CC.40Lindsleyite(Ba,Sr)(Zr,Ca)(Fe,Mg)2(Ti,Cr,Fe)18O38Trig.
4.CC.40CrichtoniteSr(Mn,Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH)38Trig. 3 : R3
4.CC.40Loveringite(Ca,Ce,La)(Zr,Fe)(Mg,Fe)2(Ti,Fe,Cr,Al)18O38Trig. 3 : R3
4.CC.40Cleusonite(Pb,Sr)(U4+,U6+)(Fe2+,Zn)2(Ti,Fe2+,Fe3+)18(O,OH)38Trig. 3 : R3
4.CC.40Davidite-(Ce)Ce(Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH,F)38Trig. 3 : R3
4.CC.40Davidite-(La)La(Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH,F)38Trig. 3 : R3
4.CC.40'Davidite-(Y)'(La,Ce,Na,Ca,Pb)(Y,Fe2+,◻)(Fe2+,Mn2+)2(Ti,Fe3+,Nb,Zr)18O38 (hypothetical)Trig.
4.CC.40'Uhligite'Ca3(Ti,Al,Zr)9O20 ?Iso.
4.CC.45DiaoyudaoiteNaAl11O17Hex. 6/mmm(6/m2/m2/m) : P63/mmc
4.CC.45YimengiteK(Cr,Ti,Fe,Mg)12O19Hex. 6/mmm(6/m2/m2/m) : P63/mmc
4.CC.45NežilovitePbZn2Mn4+2Fe3+8O19Hex. 6/mmm(6/m2/m2/m) : P63/mmc
4.CC.45HawthorneiteBaMgTi3Cr4Fe2+2Fe3+2O19Hex. 6/mmm(6/m2/m2/m) : P63/mmc
4.CC.45Mizraite-(Ce)Ce(Al11Mg)O19Hex. 6/mmm(6/m2/m2/m) : P63/mmc
4.CC.45HaggertyiteBaFe2+4Fe3+2Ti5MgO19Hex. 6/mmm(6/m2/m2/m) : P63/mmc
4.CC.45LindqvistitePb2Mn2+Fe16O27Hex. 6/mmm(6/m2/m2/m) : P63/mmc
4.CC.45HiboniteCaAl12O19Hex. 6/mmm(6/m2/m2/m) : P63/mmc
4.CC.45Kangite(Sc,Ti,Al,Zr,Mg,Ca,◻)2O3 Iso. m3(2/m3)
4.CC.45ChihuahuaiteFeAl12O19Hex. 6/mmm(6/m2/m2/m) : P63/mmc
4.CC.45BarioferriteBaFe3+12O19Hex. 6/mmm(6/m2/m2/m) : P63/mmc
4.CC.45PlumboferritePb[Fe3+10.67Mn2+0.33Pb]O18.33Trig. 32 : P312
4.CC.45BatiferriteBaTi2Fe3+8Fe2+2O19Hex. 6/mmm(6/m2/m2/m) : P63/mmc
4.CC.45MagnetoplumbitePbFe3+12O19Hex. 6/mmm(6/m2/m2/m) : P63/mmc
4.CC.50JeppeiteK2Ti6O13Mon. 2/m : B2/m
4.CC.55ZenzénitePb3Fe3+4Mn4+3O15Hex. 6/mmm(6/m2/m2/m) : P63/mcm
4.CC.60'Mengxianminite (of Huang et al.)'(Ca,Na)3(Fe,Mn)2Mg2(Sn,Zn)5Al8O29

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 Dessauite-(Y)Hide

References for Dessauite-(Y)Hide

Localities for Dessauite-(Y)Hide

Showing 19 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.
Hide all sections | Show all sections

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.
France
 
  • Auvergne-Rhône-Alpes
    • Isère
      • Grenoble
        • Les Deux Alpes
          • Mont-de-Lans
Meisser (2011)
Jean-Claude Leydet specimen +1 other reference
    • Savoie
      • Saint-Jean-de-Maurienne
        • Val-Cenis
          • Lanslebourg-Mont-Cenis
            • Mont-Cenis Plateau
De Ascenção Guedes et al. (2013)
India
 
  • Tamil Nadu
    • Chengalpattu district
Deepthi et al. (2015)
Italy
 
  • Lombardy
    • Bergamo Province
      • Premolo
www.mindat.org (n.d.)
    • Sondrio Province
      • Lanzada
        • Mt. Motta
Bedognè (2011)
  • Piedmont
    • Metropolitan City of Turin
      • Oulx
        • Signols
- (n.d.)
    • Verbano-Cusio-Ossola Province
      • Varzo
Cuchet et al. (2016)
Cuchet et al. (2016)
Cuchet et al. (2016)
Cuchet et al. (2016)
Cuchet et al. (2016) +1 other reference
Cuchet et al. (2016)
  • Tuscany
    • Lucca Province
      • Stazzema
        • Pontestazzemese
Orlandi et al. (1997) +1 other reference
Switzerland
 
  • Ticino
    • Leventina
      • Airolo
        • Fontana
Pavel M. Kartashov analytical data 2019
  • Valais
    • Östlich Raron
      • Grengiols
        • Chummibort
Cuchet et al. (2014)
Cuchet et al. (2014)
    • Sierre
      • Anniviers
        • Ayer
Ansermet (2012)
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To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844. doi:10.2138/am-2024-9486.
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