Davidite-(Ce)
A valid IMA mineral species
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About Davidite-(Ce)
Tannat William Edgeworth David
Formula:
Ce(Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH,F)38
Colour:
Black; shiny black
Lustre:
Vitreous
Hardness:
6
Specific Gravity:
4.29
Crystal System:
Trigonal
Member of:
Name:
Named in 1988 by Ernest H. Nickel and Joseph A. Mandarino in honor of Professor Tannat William Edegeworth David [January 28, 1858 St. Fagans (near Cardiff), Glamorganshire, Wales, United Kingdom - August 28, 1934 Sydney, New South Wales, Australia], studied in Cardiff and at the Royal School of Mines, before accepting a position as assistant geological surveyor in New South Wales, Australia. His early work involved studying the tin mining in the New England District and later was assigned to study the Hunter Valley Coal Fields where he discovered the important Greta Coal Seam. In 1891, David was appointed Professor of Geology at the University of Sydney. In 1896, David participated in or actually led expeditions to study the formation on atolls on Funafuti with William Sollas, George Sweet, William George Woolnough, Alfred Edmund Finckh, and others. David also conducted studies of glaciation, including pre-Cambrian glaciation. David discovered what he believed were the first known pre-Cambrian fossils. David was on the first Antarctic Expedition with Ernest Shackleton and led the first ascent of Mount Erebus and to discover the South Magnetic Pole. During World War I, David served with high distinction as well as valor, employing his skills to tunneling, trenching, and fortifications. David authored the Geological Map of the Commonwealth and the accompanying Explanatory Notes, but did not live to complete Geology of the Commonwealth of Australia. He was honored with a state funeral. David earned many of the highest honors established by Australia and the British Empire. Among many noteworthy achievements was his organization of scientific societies. Additionally, many geographic names are assigned in his honor. The suffix Ce was added to indicated the dominant REE.
Isostructural with:
Unique combination of elements. Ce analogue of davidite-(La). Y analogue of UM2006-09-O:CaFeMnREESrTiZr.
Much rarer than its La-analogue Davidite-(La).
Much rarer than its La-analogue Davidite-(La).
Unique Identifiers
Mindat ID:
1233
Long-form identifier:
mindat:1:1:1233:7
Similar Names
| Davidite | A synonym | |
| Davidite-(La) | A valid IMA mineral species - grandfathered | La(Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH,F)38 |
| Davidite-(Y) | (La,Ce,Na,Ca,Pb)(Y,Fe2+,◻)(Fe2+,Mn2+)2(Ti,Fe3+,Nb,Zr)18O38 (hypothetical) | |
| Davisite | A valid IMA mineral species | CaScAlSiO6 |
| Devadite | A synonym of 'β-Vredenburgite' | |
| Devitoite | A valid IMA mineral species | Ba4Ba2Fe72+Fe23+[Si4O12]2[PO4]2[CO3]O2(OH)4◻2 |
IMA Classification of Davidite-(Ce)
Approved
IMA Formula:
Ce3+(Y,U4+)Fe3+2(Ti4+,Fe3+,Cr3+,V5+)18(O,OH,F)38
Classification of Davidite-(Ce)
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
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
8.5.1.6
8 : MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
5 : AB21O38
8 : MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
5 : AB21O38
7.16.22
7 : Oxides and Hydroxides
16 : Oxides of U
7 : Oxides and Hydroxides
16 : Oxides of U
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference for Standard |
|---|---|---|
| Dvd-Ce | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Pronunciation of Davidite-(Ce)
Pronunciation:
| Play | Recorded by | Country |
|---|---|---|
| Jolyon Ralph | United Kingdom |
Physical Properties of Davidite-(Ce)
Vitreous
Transparency:
Opaque
Colour:
Black; shiny black
Comment:
Color on unweathered splinters. Oxidized surfaces have a brown or reddish color.
Hardness:
6 on Mohs scale
Hardness Data:
Measured
Tenacity:
Brittle
Fracture:
Sub-Conchoidal
Density:
4.29 g/cm3 (Measured)
Chemistry of Davidite-(Ce)
Mindat Formula:
Ce(Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH,F)38
Element Weights:
Chemical Analysis
Oxide wt%:
| 1 | |
|---|---|
| SiO2 | 0.34 % |
| TiO2 | 52.1 % |
| U3O8 | 1.1 % |
| Fe2O3 | 9.5 % |
| FeO | 17.1 % |
| MnO | 1.0 % |
| H2O | 1.63 % |
| REE2O8 | 17.3 % |
| Total: | 100.07 % |
Sample references:
| ID | Locality | Reference | Notes |
|---|---|---|---|
| 1 | Frikstad 03 Feldspar Quarry, Frikstad, Iveland, Agder, Norway | Analyst: B. Bruun |
Crystallography of Davidite-(Ce)
Crystal System:
Trigonal
Class (H-M):
3 - Rhombohedral
Space Group:
R3
Comment:
Point Group: [3 or 3]; Space Group: [R3.] metamict
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 2.88 Å | (100) |
| 2.47 Å | (75) |
| 2.23 Å | (75) |
| 2.13 Å | (75) |
| 1.59 Å | (75) |
| 1.43 Å | (75) |
| 3.39 Å | (50) |
Comments:
Tuftane, Norway. Data are after heating sample at 1030°C in air for 24 hours.
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 4b: Highly evolved igneous rocks | >3.0 |
| 35 : Ultra-alkali and agpaitic igneous rocks |
Type Occurrence of Davidite-(Ce)
General Appearance of Type Material:
Elongated masses with rough semi-linear outlines attaining a length of 20 cm or more.
Place of Conservation of Type Material:
Mineralogical-Geological Museum, University of Oslo, Oslo, Norway.
Geological Setting of Type Material:
Granite pegmatite.
Associated Minerals at Type Locality:
Synonyms of Davidite-(Ce)
Davidite (in part)
Other Language Names for Davidite-(Ce)
Relationship of Davidite-(Ce) to other Species
Member of:
Other Members of Crichtonite Group:
| Almeidaite | PbZn2(Mn,Y)(Ti,Fe3+)18O37(OH,O) | Trig. 3 : R3 |
| Botuobinskite | SrFe2+Mg2(Cr3+6Ti4+12)[O36(OH)2] | Trig. 3 : R3 |
| Cleusonite | (Pb,Sr)(U4+,U6+)(Fe2+,Zn)2(Ti,Fe2+,Fe3+)18(O,OH)38 | Trig. 3 : R3 |
| Crichtonite | Sr(Mn,Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH)38 | Trig. 3 : R3 |
| Davidite-(La) | La(Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH,F)38 | Trig. 3 : R3 |
| 'Davidite-(Y)' | (La,Ce,Na,Ca,Pb)(Y,Fe2+,◻)(Fe2+,Mn2+)2(Ti,Fe3+,Nb,Zr)18O38 (hypothetical) | Trig. |
| Dessauite-(Y) | (Sr,Pb)(Y,U)(Ti,Fe3+)20O38 | Trig. 3 : R3 |
| Gramaccioliite-(Y) | (Pb,Sr)(Y,Mn)Fe3+2(Ti,Fe3+)18O38 | Trig. 3 : R3 |
| Haitaite-(La) | LaU4+Fe3+2(Ti13Fe2+4Fe3+)O38 | Trig. 3 : R3 |
| Landauite | NaMnZn2(Ti,Fe)6Ti12O38 | Trig. 3 : R3 |
| Lindsleyite | (Ba,Sr)(Zr,Ca)(Fe,Mg)2(Ti,Cr,Fe)18O38 | Trig. |
| Loveringite | (Ca,Ce,La)(Zr,Fe)(Mg,Fe)2(Ti,Fe,Cr,Al)18O38 | Trig. 3 : R3 |
| Mapiquiroite | (Sr,Pb)(U,Y)Fe2(Ti,Fe3+,Cr3+)18O38 | Trig. 3 : R3 |
| Mathiasite | (Mg,Cr,Fe,Ca,K)2(Ti,Zr,Cr,Fe)5O12 | Trig. 3 : R3 |
| Mianningite | (◻,Pb,Ce,Na)(U4+,Mn,U6+)Fe3+2 (Ti,Fe3+)18O38 | Trig. 3 : R3 |
| Mirnyite | SrZr4+Mg2(Cr3+6Ti4+12)O38 | Trig. 3 : R3 |
| Paseroite | PbMn2+(Mn2+,Fe3+)2(V5+,Ti,◻)18O38 | Trig. 3 : R3 |
| Saranovskite | SrCaFe2+2(Cr4Ti2)Ti12O38 | Trig. 3 : R3 |
| Senaite | Pb(Mn,Y,U)(Fe,Zn)2(Ti,Fe,Cr,V)18(O,OH)38 | Trig. 3 : R3 |
| 'UM1987-03-O:FePbTiU' | ~(U,Pb)(Ti,Fe3+,Fe2+,Mn)21O38 | Trig. 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)6Ti12O38 | Trig. 3 : R3 |
Related Minerals - Strunz-mindat Grouping
| 4.CC. | Xuite | Ca3Fe3+2[(AlO3(OH)]3 |
| 4.CC. | Yttriaite-(Y) | Y2O3 |
| 4.CC. | Allendeite | Sc4Zr3O12 |
| 4.CC. | Chlorkyuygenite | Ca12Al14O32[(H2O)4Cl2] |
| 4.CC. | Oboniobite | Mg4Nb2O9 |
| 4.CC. | Botuobinskite | SrFe2+Mg2(Cr3+6Ti4+12)[O36(OH)2] |
| 4.CC. | Mirnyite | SrZr4+Mg2(Cr3+6Ti4+12)O38 |
| 4.CC. | Haitaite-(La) | LaU4+Fe3+2(Ti13Fe2+4Fe3+)O38 |
| 4.CC. | Shagamite | KFe11O17 |
| 4.CC. | Bitikleite | Ca3(Sb5+Sn4+)[AlO4]3 |
| 4.CC. | Anzaite-(Ce) | Ce3+ 4Fe2+Ti6O18 (OH)2 |
| 4.CC. | Heamanite-(Ce) | (K0.5Ce0.5)TiO3 |
| 4.CC. | Priscillagrewite-(Y) | (Ca2Y)Zr2(AlO4)3 |
| 4.CC. | Strandite | Pb3Mn3+4Mn4+3O15 |
| 4.CC. | Saranovskite | SrCaFe2+2(Cr4Ti2)Ti12O38 |
| 4.CC.05 | Chrombismite | Bi3+16Cr6+O27 |
| 4.CC.10 | Freudenbergite | Na2(Ti,Fe)8O16 |
| 4.CC.10 | Fluormayenite | Ca12Al14O32F2 |
| 4.CC.10 | Fluorkyuygenite | Ca12Al14O32[(H2O)4F2] |
| 4.CC.15 | Grossite | CaAl4O7 |
| 4.CC.17 | Goldschmidtite | KNbO3 |
| 4.CC.20 | 'Unnamed (HBU UK-4)' | NaFe2+Zn2(Ti,Fe3+,Nb)6Ti12O38 |
| 4.CC.20 | Chlormayenite | Ca12Al14O32[◻4Cl2] |
| 4.CC.20 | Paseroite | PbMn2+(Mn2+,Fe3+)2(V5+,Ti,◻)18O38 |
| 4.CC.20 | Mianningite | (◻,Pb,Ce,Na)(U4+,Mn,U6+)Fe3+2 (Ti,Fe3+)18O38 |
| 4.CC.20 | 'UM1987-03-O:FePbTiU' | ~(U,Pb)(Ti,Fe3+,Fe2+,Mn)21O38 |
| 4.CC.22 | Gorerite | CaAlFe3+11O19 |
| 4.CC.22 | Kahlenbergite | KAl11O17 |
| 4.CC.25 | Hopmannite | Ba2(Ti5Fe)O13 |
| 4.CC.25 | Nixonite | Na2Ti6O13 |
| 4.CC.25 | Yafsoanite | Ca3Te6+2(ZnO4)3 |
| 4.CC.30 | Latrappite | Ca2NbFe3+O6 |
| 4.CC.30 | Natroniobite | NaNbO3 |
| 4.CC.30 | Perovskite | CaTiO3 |
| 4.CC.30 | Lueshite | NaNbO3 |
| 4.CC.30 | Bariolakargiite | BaZrO3 |
| 4.CC.30 | Barioperovskite | BaTiO3 |
| 4.CC.30 | Megawite | CaSnO3 |
| 4.CC.30 | Lakargiite | Ca(Zr,Sn,Ti)O3 |
| 4.CC.32 | Usturite | Ca3(Sb5+Zr)[Fe3+O4]3 |
| 4.CC.32 | Elbrusite | Ca3(U6+0.5Zr1.5)[Fe3+O4]3 |
| 4.CC.32 | Monteneveite | Ca3Sb5+2(Fe3+2Fe2+)O12 |
| 4.CC.32 | Dzhuluite | Ca3(Sb5+Sn4+)[Fe3+O4]3 |
| 4.CC.35 | Tausonite | SrTiO3 |
| 4.CC.35 | Loparite | (Na,REE)2Ti2O6 |
| 4.CC.35 | Panguite | (Ti,Al,Sc,Mg,Zr,Ca)1.8O3 |
| 4.CC.35 | Isolueshite | (Na,La)NbO3 |
| 4.CC.35 | Macedonite | PbTiO3 |
| 4.CC.37 | Pauloabibite | NaNbO3 |
| 4.CC.40 | Landauite | NaMnZn2(Ti,Fe)6Ti12O38 |
| 4.CC.40 | Mathiasite | (Mg,Cr,Fe,Ca,K)2(Ti,Zr,Cr,Fe)5O12 |
| 4.CC.40 | Senaite | Pb(Mn,Y,U)(Fe,Zn)2(Ti,Fe,Cr,V)18(O,OH)38 |
| 4.CC.40 | Gramaccioliite-(Y) | (Pb,Sr)(Y,Mn)Fe3+2(Ti,Fe3+)18O38 |
| 4.CC.40 | Lindsleyite | (Ba,Sr)(Zr,Ca)(Fe,Mg)2(Ti,Cr,Fe)18O38 |
| 4.CC.40 | Crichtonite | Sr(Mn,Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH)38 |
| 4.CC.40 | Loveringite | (Ca,Ce,La)(Zr,Fe)(Mg,Fe)2(Ti,Fe,Cr,Al)18O38 |
| 4.CC.40 | Cleusonite | (Pb,Sr)(U4+,U6+)(Fe2+,Zn)2(Ti,Fe2+,Fe3+)18(O,OH)38 |
| 4.CC.40 | Davidite-(La) | La(Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH,F)38 |
| 4.CC.40 | 'Davidite-(Y)' | (La,Ce,Na,Ca,Pb)(Y,Fe2+,◻)(Fe2+,Mn2+)2(Ti,Fe3+,Nb,Zr)18O38 (hypothetical) |
| 4.CC.40 | 'Uhligite' | Ca3(Ti,Al,Zr)9O20 ? |
| 4.CC.40 | Dessauite-(Y) | (Sr,Pb)(Y,U)(Ti,Fe3+)20O38 |
| 4.CC.45 | Diaoyudaoite | NaAl11O17 |
| 4.CC.45 | Yimengite | K(Cr,Ti,Fe,Mg)12O19 |
| 4.CC.45 | Nežilovite | PbZn2Mn4+2Fe3+8O19 |
| 4.CC.45 | Hawthorneite | BaMgTi3Cr4Fe2+2Fe3+2O19 |
| 4.CC.45 | Mizraite-(Ce) | Ce(Al11Mg)O19 |
| 4.CC.45 | Haggertyite | BaFe2+4Fe3+2Ti5MgO19 |
| 4.CC.45 | Lindqvistite | Pb2Mn2+Fe16O27 |
| 4.CC.45 | Hibonite | CaAl12O19 |
| 4.CC.45 | Kangite | (Sc,Ti,Al,Zr,Mg,Ca,◻)2O3 |
| 4.CC.45 | Chihuahuaite | FeAl12O19 |
| 4.CC.45 | Barioferrite | BaFe3+12O19 |
| 4.CC.45 | Plumboferrite | Pb[Fe3+10.67Mn2+0.33Pb]O18.33 |
| 4.CC.45 | Batiferrite | BaTi2Fe3+8Fe2+2O19 |
| 4.CC.45 | Magnetoplumbite | PbFe3+12O19 |
| 4.CC.50 | Jeppeite | K2Ti6O13 |
| 4.CC.55 | Zenzénite | Pb3Fe3+4Mn4+3O15 |
| 4.CC.60 | 'Mengxianminite (of Huang et al.)' | (Ca,Na)3(Fe,Mn)2Mg2(Sn,Zn)5Al8O29 |
Fluorescence of Davidite-(Ce)
Not fluorescent in UV.
Other Information
Notes:
Radioactive.
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 Davidite-(Ce)
mindat.org URL:
https://www.mindat.org/min-1233.html
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References for Davidite-(Ce)
Reference List:
Neumann, Henrich; Sverdrup, Thor L. (1960) Contributions to the mineralogy of Norway. No. 8. Davidite from Tuftan, Iveland. Norsk Geologisk Tidsskrift [Norwegian Journal of Geology], 40 (3-4). 277-288
Levinson, A. A. (1966) A system of nomenclature for rare-earth minerals. American Mineralogist, 51 (1-2) 152-158
Gatehouse, Bryan M., Grey, Ian E., Kelly, Patrick R. (1979) The crystal structure of davidite. American Mineralogist, 64 (9-10) 1010-1017
Localities for Davidite-(Ce)
Showing 15 localities.
symbol to view information about a locality.
The Locality List
- 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).
All localities listed without proper references should be considered as questionable.
Canada | |
| ontariominerals.com |
Egypt | |
| 52 (2) +1 other reference |
Finland | |
| Al-Ani et al. (2011) |
| Al-Ani et al. (2011) |
Iran | |
| Farahnaz Daliran et al. (1994) |
Norway | |
| Rune S. Selbekk (2010) |
| Neumann et al. (1960) |
| Neumann (1985) | |
Russia | |
| Kasatkin et al. (2019) |
| The Canadian Mineralogist Vol. 39 (2001) |
| Kompanchenko et al. (2018) |
| ... | |
| Компанченко А.А. +1 other reference |
Switzerland | |
| Cuchet et al. (2014) +1 other reference |
USA | |
| Ague et al. (2012) |
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Frikstad 03 Feldspar Quarry, Frikstad, Iveland, Agder, Norway