Ma, C., Beckett, J. R., Rossman, G. R. (2014) Allendeite (Sc₄Zr₃O₁₂) and hexamolybdenum (Mo,Ru,Fe), two new minerals from an ultrarefractory inclusion from the Allende meteorite. American Mineralogist, 99 (4) 654-666 doi:10.2138/am.2014.4667

Classification of AllendeiteHide

Strunz-mindat (2024):

4.CC.

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

Dana 8th ed.:

4.6.8.

4 : SIMPLE OXIDES
6 : Miscellaneous

Mineral SymbolsHide

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

Symbol	Source	Reference
Aed	IMA–CNMNC	Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of AllendeiteHide

Hardness Data:

Could not be measured

Density:

4.84 g/cm³ (Calculated)

Chemistry of AllendeiteHide

Mindat Formula:

Sc₄Zr₃O₁₂

Elements listed:

O, Sc, Zr - search for minerals with similar chemistry

Crystallography of AllendeiteHide

Crystal System:

Trigonal

Class (H-M):

3 - Rhombohedral

Space Group:

Cell Parameters:

a = 9.396 Å, c = 8.720 Å

Ratio:

a:c = 1 : 0.928

Unit Cell V:

666.7 Å³

Twinning:

None observed.

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
4.698 Å	(5)
2.900 Å	(100)
2.513 Å	(18)
1.779 Å	(27)
1.776 Å	(32)
1.515 Å	(19)
1.450 Å	(4)
1.152 Å	(4)

Geological EnvironmentHide

Paragenetic Mode(s):

Paragenetic Mode	Earliest Age (Ga)
Stage 1: Primary nebular phases	4.567-4.561
3 : Solar nebular condensates (CAIs, AOAs, URIs)	>4.565

Type Occurrence of AllendeiteHide

Type Locality:

ⓘ Allende meteorite, Pueblito de Allende, Chihuahua, Mexico

General Appearance of Type Material:

Anhedral grains up to 15 × 25 μm in size. Also linked and isolated 1–5 μm irregular grains.

Place of Conservation of Type Material:

National Museum of Natural History, Washington, D.C., USA, USNM 7554.

Geological Setting of Type Material:

Found in the Allende meteorite as micro- to nano-crystals in an ultrarefractory inclusion, ACM-1.

Associated Minerals at Type Locality:

Reference:

Ma, C., Beckett, J.R., Rossman, G.R. (2014) Allendeite (Sc4Zr3O12) and hexamolybdenum (Mo,Ru,Fe), two new minerals from an ultrarefractory inclusion from the Allende meteorite. American Mineralogist: 99: 654-666.

Synonyms of AllendeiteHide

IMA2007-027

Related Minerals - Strunz-mindat Grouping Hide

4.CC.	Xuite	Ca₃Fe³⁺₂[(AlO₃(OH)]₃	Iso. m3m (4/m 3 2/m)
4.CC.	Bitikleite	Ca₃(Sb⁵⁺Sn⁴⁺)[AlO₄]₃	Iso. m3m (4/m 3 2/m) : Ia3d
4.CC.	Yttriaite-(Y)	Y₂O₃	Iso. m3 (2/m 3)
4.CC.	Chlorkyuygenite	Ca₁₂Al₁₄O₃₂[(H₂O)₄Cl₂]	Iso. 4 3m : I4 3d
4.CC.	Anzaite-(Ce)	Ce³⁺₄Fe²⁺Ti₆O₁₈ (OH)₂	Mon. 2/m : B2/m
4.CC.	Heamanite-(Ce)	(K_0.5Ce_0.5)TiO₃	Iso. m3m (4/m 3 2/m)
4.CC.	Priscillagrewite-(Y)	(Ca₂Y)Zr₂(AlO₄)₃	Iso.
4.CC.	Saranovskite	SrCaFe²⁺₂(Cr₄Ti₂)Ti₁₂O₃₈	Trig. 3 : R3
4.CC.	Botuobinskite	SrFe²⁺Mg₂(Cr³⁺₆Ti⁴⁺₁₂)[O₃₆(OH)₂]	Trig. 3 : R3
4.CC.	Mirnyite	SrZr⁴⁺Mg₂(Cr³⁺₆Ti⁴⁺₁₂)O₃₈	Trig. 3 : R3
4.CC.	Haitaite-(La)	LaU⁴⁺Fe³⁺₂(Ti₁₃Fe²⁺₄Fe³⁺)O₃₈	Trig. 3 : R3
4.CC.	Shagamite	KFe₁₁O₁₇	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mmc
4.CC.05	Chrombismite	Bi³⁺₁₆Cr⁶⁺O₂₇	Iso. m3m (4/m 3 2/m)
4.CC.10	Freudenbergite	Na₂(Ti,Fe)₈O₁₆	Mon.
4.CC.10	Fluormayenite	Ca₁₂Al₁₄O₃₂F₂	Iso. 4 3m : I4 3d
4.CC.10	Fluorkyuygenite	Ca₁₂Al₁₄O₃₂[(H₂O)₄F₂]	Iso. 4 3m : I4 3d
4.CC.15	Grossite	CaAl₄O₇	Mon. 2/m : B2/b
4.CC.17	Goldschmidtite	KNbO₃	Iso. m3m (4/m 3 2/m) : Pm3m
4.CC.20	Chlormayenite	Ca₁₂Al₁₄O₃₂[◻₄Cl₂]	Iso. 4 3m : I4 3d
4.CC.20	Unnamed (HBU UK-4)	NaFe²⁺Zn₂(Ti,Fe³⁺,Nb)₆Ti₁₂O₃₈	Trig. 3 : R3
4.CC.20	Paseroite	PbMn²⁺(Mn²⁺,Fe³⁺)₂(V⁵⁺,Ti,◻)₁₈O₃₈	Trig. 3 : R3
4.CC.20	Mianningite	(◻,Pb,Ce,Na)(U⁴⁺,Mn,U⁶⁺)Fe³⁺₂ (Ti,Fe³⁺)₁₈O₃₈	Trig. 3 : R3
4.CC.20	UM1987-03-O:FePbTiU	~(U,Pb)(Ti,Fe³⁺,Fe²⁺,Mn)₂₁O₃₈	Trig. 3 : R3
4.CC.22	Kahlenbergite	KAl₁₁O₁₇	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mmc
4.CC.22	Gorerite	CaAlFe³⁺₁₁O₁₉	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mmc
4.CC.25	Yafsoanite	Ca₃Te⁶⁺₂(ZnO₄)₃	Iso. m3m (4/m 3 2/m) : Ia3d
4.CC.25	Nixonite	Na₂Ti₆O₁₃	Mon. 2/m : B2/m
4.CC.30	Latrappite	Ca₂NbFe³⁺O₆	Orth. mmm (2/m 2/m 2/m) : Pnma
4.CC.30	Lueshite	NaNbO₃	Orth. mmm (2/m 2/m 2/m)
4.CC.30	Natroniobite	NaNbO₃	Mon.
4.CC.30	Perovskite	CaTiO₃	Orth. mmm (2/m 2/m 2/m) : Pnma
4.CC.30	Barioperovskite	BaTiO₃	Orth. mm2 : Amm2
4.CC.30	Lakargiite	Ca(Zr,Sn,Ti)O₃	Orth. mmm (2/m 2/m 2/m) : Pnma
4.CC.30	Megawite	CaSnO₃	Orth. mmm (2/m 2/m 2/m) : Pban
4.CC.32	Usturite	Ca₃(Sb⁵⁺Zr)[Fe³⁺O₄]₃	Iso. m3m (4/m 3 2/m) : Ia3d
4.CC.32	Elbrusite	Ca₃(U⁶⁺_0.5Zr_1.5)[Fe³⁺O₄]₃	Iso. m3m (4/m 3 2/m) : Ia3d
4.CC.32	Dzhuluite	Ca₃(Sb⁵⁺Sn⁴⁺)[Fe³⁺O₄]₃	Iso. m3m (4/m 3 2/m) : Ia3d
4.CC.32	Monteneveite	Ca₃Sb⁵⁺₂(Fe³⁺₂Fe²⁺)O₁₂	Iso. m3m (4/m 3 2/m) : Ia3d
4.CC.35	Loparite-(Ce)	(Na,REE)₂Ti₂O₆	Iso. m3m (4/m 3 2/m)
4.CC.35	Macedonite	PbTiO₃	Tet. 4/mmm (4/m 2/m 2/m) : P4/nmm
4.CC.35	Tausonite	SrTiO₃	Iso. 4 3m
4.CC.35	Isolueshite	(Na,La)NbO₃	Iso. m3m (4/m 3 2/m) : Pm3m
4.CC.35	Panguite	(Ti,Al,Sc,Mg,Zr,Ca)_1.8O₃	Orth. mmm (2/m 2/m 2/m) : Pbca
4.CC.37	Pauloabibite	NaNbO₃	Trig. 3 : R3
4.CC.40	Crichtonite	Sr(Mn,Y,U)Fe₂(Ti,Fe,Cr,V)₁₈(O,OH)₃₈	Trig. 3 : R3
4.CC.40	Davidite-(Ce)	Ce(Y,U)Fe₂(Ti,Fe,Cr,V)₁₈(O,OH,F)₃₈	Trig. 3 : R3
4.CC.40	Davidite-(La)	La(Y,U)Fe₂(Ti,Fe,Cr,V)₁₈(O,OH,F)₃₈	Trig. 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	Landauite	NaMnZn₂(Ti,Fe)₆Ti₁₂O₃₈	Trig. 3 : R3
4.CC.40	Lindsleyite	(Ba,Sr)(Zr,Ca)(Fe,Mg)₂(Ti,Cr,Fe)₁₈O₃₈	Trig.
4.CC.40	Loveringite	(Ca,Ce,La)(Zr,Fe)(Mg,Fe)₂(Ti,Fe,Cr,Al)₁₈O₃₈	Trig. 3 : R3
4.CC.40	Mathiasite	(Mg,Cr,Fe,Ca,K)₂(Ti,Zr,Cr,Fe)₅O₁₂	Trig. 3 : R3
4.CC.40	Senaite	Pb(Mn,Y,U)(Fe,Zn)₂(Ti,Fe,Cr,V)₁₈(O,OH)₃₈	Trig. 3 : R3
4.CC.40	Uhligite	Ca₃(Ti,Al,Zr)₉O₂₀ ?	Iso.
4.CC.40	Dessauite-(Y)	(Sr,Pb)(Y,U)(Ti,Fe³⁺)₂₀O₃₈	Trig. 3 : R3
4.CC.40	Cleusonite	(Pb,Sr)(U⁴⁺,U⁶⁺)(Fe²⁺,Zn)₂(Ti,Fe²⁺,Fe³⁺)₁₈(O,OH)₃₈	Trig. 3 : R3
4.CC.40	Gramaccioliite-(Y)	(Pb,Sr)(Y,Mn)Fe³⁺₂(Ti,Fe³⁺)₁₈O₃₈	Trig. 3 : R3
4.CC.45	Diaoyudaoite	NaAl₁₁O₁₇	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mmc
4.CC.45	Hawthorneite	BaMgTi₃Cr₄Fe²⁺₂Fe³⁺₂O₁₉	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mmc
4.CC.45	Hibonite	CaAl₁₂O₁₉	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mmc
4.CC.45	Lindqvistite	Pb₂Mn²⁺Fe₁₆O₂₇	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mmc
4.CC.45	Magnetoplumbite	(Pb,Mn)(Fe,Mn)₁₂O₁₉	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mmc
4.CC.45	Plumboferrite	Pb₂(Fe³⁺,Mn²⁺,Mg)₁₁O₁₉	Trig. 3 2 : P3 1 2
4.CC.45	Yimengite	K(Cr,Ti,Fe,Mg)₁₂O₁₉	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mmc
4.CC.45	Haggertyite	BaFe²⁺₄Fe³⁺₂Ti₅MgO₁₉	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mmc
4.CC.45	Nežilovite	PbZn₂Mn⁴⁺₂Fe³⁺₈O₁₉	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mmc
4.CC.45	Batiferrite	BaTi₂Fe³⁺₈Fe²⁺₂O₁₉	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mmc
4.CC.45	Chihuahuaite	FeAl₁₂O₁₉	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mmc
4.CC.45	Barioferrite	BaFe³⁺₁₂O₁₉	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mmc
4.CC.45	Kangite	(Sc,Ti,Al,Zr,Mg,Ca,◻)₂O₃	Iso. m3 (2/m 3)
4.CC.45	Mizraite-(Ce)	Ce(Al₁₁Mg)O₁₉	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mmc
4.CC.50	Jeppeite	(K,Ba)₂(Ti,Fe)₆O₁₃	Mon. 2/m : B2/m
4.CC.55	Zenzénite	Pb₃Fe³⁺₄Mn⁴⁺₃O₁₅	Hex. 6/mmm (6/m 2/m 2/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 AllendeiteHide

mindat.org URL:

https://www.mindat.org/min-32284.html
Please feel free to link to this page.

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External Links:

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Raman and XRD data at RRUFF project

References and PDF downloads at RRUFF project

American Mineralogist Crystal Structure Database

Handbook of Mineralogy page PDF

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References for AllendeiteHide

Reference List:

Collongues, Robert; Qucyroux, Francine; Jorba, Monique Perez y; Gilles, Jean Claude (1965) Structure and properties of the compounds of rare earth oxides with oxides of the Group IV elements. Bulletin de la Societe Chimique de France: 1965: 1141-1149.

Thornber, M.R., Bevan, D.J.M., Graham, J. (1968) Mixed oxides of the type MO2(fluorite)-M2O3. III. Crystal structures of the intermediate phases Zr5Sc2O13 and Zr3Sc4O12. Acta Crystallographica: B24: 1183-1190.

Rossell, H.J. (1976) Crystal structures of some fluorite-related M7O12 compounds. Journal of Solid State Chemistry: 19: 103-111.

Magunov, R.L., Shklyar, G.L., Katridi, V.F. (1989) The phase diagrams of the zirconia (hafnia)-scandium sesquioxide systems. Izvestiya Akademii Nauk SSSR, Neorganicheskie Materialy: 25: 1224-1226.

Red'ko, V.P., Lopato, L.M. (1991) Crystal structure of rare earth zirconates M4Zr3O12 and hafnates M4Hf3O12 (M = rare earth). Neorganicheskie Materialy: 27: 1905-1910.

Bevan, D.J.M., Mohyla, J., Wallwork, K.S., Rossell, H.J., Schweda, E. (2002) Structural principles for anion-deficient, fluorite-related superstructures in the zirconia-scandia system. Zeitschrift für Anorganische und Allgemeine Chemie: 628: 1180-1186.

Stanek, C.R., Jiang, C., Uberuaga, B.P., Sickafus, K.E., Cleave, A.R., Grimes, R.W. (2009) Predicted structure and stability of A4B3O12 delta-phase compositions. Physical Review B: Condensed Matter and Materials Physics: 80: 174101/1-174101/11.

Ma, C., Beckett, J.R., Rossman, G.R. (2009) Allendeite and Hexamolybdenum: Two New Ultra-Refractory Minerals in Allende and Two Missing Links. 40th Lunar and Planetary Science Conference.

(2023) Allendeite. Handbook of Mineralogy. Mineralogical Society of America

Localities for AllendeiteHide

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 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.


China
Shaanxi Hanzhong Ningqiang County ⓘ Ningqiang meteorite (Ningqiang carbonaceous chondrite)	Wang et al. (2009)

Mexico (TL)
Chihuahua Pueblito de Allende ⓘ Allende meteorite (TL)	Ma et al. (2014)

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Allendeite

About AllendeiteHide

Unique IdentifiersHide

IMA Classification of AllendeiteHide