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Mayenite

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Caspar quarry, Bellerberg volcano, Ettringen, Mayen, Eifel, Rhineland-Palatinate, Germany
© luigi chiappino

Show Mayenite Photos (2)



Formula:
Ca
 
12
Al
 
14
O
 
33
System:Isometric
Member of:Mayenite Group
Name:
Named after the type locality, (near) Mayen, Eifel, Germany.


Well-known cement phase.

A potential new Cl member ("Ca12Al14O32Cl2.3H2O", "Cl-mayenite") of the mayenite group is reported by Galuskin et al. (2009). Data by Galuskin et al. (2010) suggest (nearly?) all natural mayenites correspond to the Cl member.
Anhydrous Ca12Al14O32Cl2 was approved in 2010 as brearleyite.

Classification of Mayenite

IMA status:Approved
Strunz 8th edition ID:4/A.07-30
Nickel-Strunz 10th (pending) edition ID:4.CC.20

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 edition ID:7.11.3.1

7 : MULTIPLE OXIDES
11 : Miscellaneous
Hey's CIM Ref.:7.4.13

7 : Oxides and Hydroxides
4 : Oxides of Be, Mg and the alkaline earths
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Type Occurrence of Mayenite

Co-type Localities:Mayener Feld, Southern lava flow, Bellerberg volcano, Ettringen, Mayen, Eifel, Rhineland-Palatinate, Germany
Ettringer Feld, Western lava flow, Bellerberg volcano, Ettringen, Mayen, Eifel, Rhineland-Palatinate, Germany
Year of Discovery:1964

Crystallography of Mayenite

Crystal System:Isometric
Class (H-M):4 3m - Hextetrahedral
Space Group:I4 3d
Cell Parameters:a = 11.98Å
Unit Cell Volume:V 1,719.37 ų (Calculated from Unit Cell)
Z:2
Comment:Cell parameter ranges from 11.97-12.02 A.

Optical Data of Mayenite

Type:Isotropic

Chemical Properties of Mayenite

Formula:
Ca
 
12
Al
 
14
O
 
33
Essential elements:Al, Ca, O
All elements listed in formula:Al, Ca, O

Relationship of Mayenite to other Species

Member of:Mayenite Group
Other Members of Group:

- +
Brearleyite
Ca
 
12
Al
 
14
O
 
32
Cl
 
2
Kyuygenite
Ca
 
12
Al
 
14
O
 
32
[(H
 
2
O)
 
4
Cl
 
2
]
Related Minerals - Nickel-Strunz Grouping):

- +
4.CC.05Chrombismite
Bi
 
16
CrO
 
27
4.CC.10Freudenbergite
Na
 
2
(Ti,Fe)
 
8
O
 
16
4.CC.15Grossite
CaAl
 
4
O
 
7
4.CC.20Brearleyite
Ca
 
12
Al
 
14
O
 
32
Cl
 
2
4.CC.25Yafsoanite
Ca
 
3
Zn
 
3
(TeO
 
6
)
 
2
4.CC.30Latrappite
(Ca,Na)(Nb,Ti,Fe)O
 
3
4.CC.30Lueshite
NaNbO
 
3
4.CC.30Natroniobite
NaNbO
 
3
4.CC.30Perovskite
CaTiO
 
3
4.CC.30Barioperovskite
BaTiO
 
3
4.CC.30Lakargiite
Ca(Zr,Sn,Ti)O
 
3
4.CC.30Megawite
CaSnO
 
3
4.CC.35Loparite-(Ce)
(Na,Ce,Ca,Sr,Th)(Ti,Nb,Fe)O
 
3
4.CC.35Macedonite
PbTiO
 
3
4.CC.35Tausonite
SrTiO
 
3
4.CC.35Isolueshite
(Na,La,Ca)(Nb,Ti)O
 
3
4.CC.40Crichtonite
(Sr,La,Ce,Y)(Ti,Fe
3+
 
,Mn)
 
21
O
 
38
4.CC.40Davidite-(Ce)
(Ce,La)(Y,U,Fe)(Ti,Fe)
 
20
(O,OH)
 
38
4.CC.40Davidite-(La)
(La,Ce)(Y,U,Fe)(Ti,Fe)
 
20
(O,OH)
 
38
4.CC.40Davidite-(Y)
(La,Ce,Na,Ca,Pb)(Y,Fe
2+
 
,◻)(Fe
2+
 
,Mn
2+
 
)
 
2
(Ti,Fe
3+
 
,Nb,Zr)
 
18
O
 
38
 (hypothetical)
4.CC.40Landauite
NaMnZn
 
2
(Ti,Fe)
 
6
Ti
 
12
O
 
38
4.CC.40Lindsleyite
(Ba,Sr)(Ti,Zr,Fe,Cr)
 
21
O
 
38
4.CC.40Loveringite
(Ca,Ce)(Ti,Fe,Cr,Mg)
 
21
O
 
38
4.CC.40Mathiasite
K(Ti,Cr,Fe,Mg,Zr)
 
21
O
 
38
4.CC.40Senaite
Pb(Ti,Fe,Mn)
 
21
O
 
38
4.CC.40Dessauite-(Y)
(Sr,Pb)(Y,U)(Ti,Fe
3+
 
)
 
20
O
 
38
4.CC.40Cleusonite
(Pb,Sr)(U
4+
 
,U
6+
 
)(Fe
2+
 
,Zn)
 
2
(Ti,Fe
2+
 
,Fe
3+
 
)
 
18
(O,OH)
 
38
4.CC.40Gramaccioliite-(Y)
(Pb,Sr)(Y,Mn)Fe
3+
2
(Ti,Fe
3+
 
)
 
18
O
 
38
4.CC.45Diaoyudaoite
NaAl
 
11
O
 
17
4.CC.45Hawthorneite
Ba(MgTi
 
3
Cr
 
4
Fe
 
4
)O
 
19
4.CC.45Hibonite
(Ca,Ce)Al
 
12
O
 
19
4.CC.45Lindqvistite
Pb
 
2
Mn
2+
 
Fe
 
16
O
 
27
4.CC.45Magnetoplumbite
(Pb,Mn)(Fe,Mn)
 
12
O
 
19
4.CC.45Plumboferrite
Pb
 
2
Fe
3+
11-x
Mn
2+
x
O
 
19-2x
, x = 1/3
4.CC.45Yimengite
K(Cr,Ti,Fe,Mg)
 
12
O
 
19
4.CC.45Haggertyite
Ba[Fe
2+
6
Ti
 
5
Mg]O
 
19
4.CC.45Nežilovite
PbZn
 
2
(Mn
4+
 
,Ti
4+
 
)
 
2
Fe
3+
8
O
 
19
4.CC.45Batiferrite
Ba[Ti
 
2
Fe
3+
8
Fe
2+
2
]O
 
19
4.CC.45IMA2009-027
(Fe,Mg)Al
 
12
O
 
19
4.CC.45Barioferrite
BaFe
3+
12
O
 
19
4.CC.50Jeppeite
(K,Ba)
 
2
(Ti,Fe)
 
6
O
 
13
4.CC.55Zenzénite
Pb
 
3
(Fe,Mn)
 
4
Mn
 
3
O
 
13
4.CC.60Mengxianminite
(Ca,Na)
 
3
(Fe,Mn)
 
2
Mg
 
2
(Sn,Zn)
 
5
Al
 
8
O
 
29
Related Minerals - Hey's Index Grouping:

- +
7.4.1Bromellite
BeO
7.4.2Behoite
Be(OH)
 
2
7.4.3Clinobehoite
Be(OH)
 
2
7.4.4Chrysoberyl
BeAl
 
2
O
 
4
7.4.5Magnesiotaaffeite-2N’2S
Mg
 
3
Al
 
8
BeO
 
16
7.4.6Magnesiotaaffeite-6N’3S
Mg
 
2
BeAl
 
6
O
 
12
7.4.7Periclase
MgO
7.4.8Brucite
Mg(OH)
 
2
7.4.9Spinel
MgAl
 
2
O
 
4
7.4.10Meixnerite
Mg
 
6
Al
 
2
(OH)
 
16
(OH)
 
2
 · 4H
 
2
O
7.4.11Lime
CaO
7.4.12Portlandite
Ca(OH)
 
2
7.4.14Hydrocalumite
Ca
 
8
Al
 
4
(OH)
 
12
(Cl,CO
 
3
,OH)
 
2-x
 · 4H
 
2
O
7.4.15Marokite
CaMn
 
2
O
 
4
7.4.16Ranciéite
(Ca,Mn)Mn
 
4
O
 
9
 · 3H
 
2
O
7.4.17Hollandite
Ba(Mn
4+
6
Mn
3+
2
)O
 
16
7.4.18Romanèchite
(Ba,H
 
2
O)
 
2
Mn
 
5
O
 
10
7.4.19Todorokite
(Ca,K,Na,Mg,Ba,Mn)(Mn,Mg,Al)
 
6
O
 
12
 · 3H
 
2
O

Other Names for Mayenite

Synonyms:
IMA1963-016
Other Languages:
German:Mayenit
Russian:Майенит
Spanish:Mayenita

Other Information

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

References for Mayenite

Reference List:

- +
Hentschel, G. (1964): Mayenit, 12CaO 7Al2O3, und Brownmillerit, 2CaO.(Al,Fe)2O3, zwei neue Minerale in den Kalksteineinschlüssen der Lava des Ettringer Bellerberges: Neues Jahrbuch für Mineralogie, Monatshefte (1964): 22-29.

American Mineralogist (1965): 50: 2106.

Boysen, H., Lerch, M., Stys, A., Senyshyn, A. (2007): Structure and oxygen mobility in mayenite (Ca12Al14O33): a high-temperature neutron powder diffraction study. Acta Crystallographica, B63, 675-682.

Galuskin, E. V.; Gazeev, V. M.; Lazic, B.; Armbruster, T.; Galuskina, I. O.; Zadov, A. E.; Pertsev, N. N.; Wrzalik, R.; Dzierzanowski, P.; Gurbanov, A. G. & Bzowska, G. (2009): Chegemite Ca7(SiO4)3(OH)2 - a new humite-group calcium mineral from the Northern Caucasus, Kabardino-Balkaria, Russia. European Journal of Mineralogy 21, 1045-1059.

Bailau, R., Galuskin, E.V., Gazeev, V.M. & Pertsev, N.N. (2010): Classification and potential new minerals in the “mayenite group”. 20th General Meeting of the IMA (IMA2010), Budapest, Hungary, August 21-27, CD of Abstracts, p. 493.

Ma, C., Sweeney Smith, S.A., Connolly, H.C., Beckett, J.R., Rossman, G.R., Schrader, D.L. (2010): Discovery of Cl-bearing mayenite, Ca12Al14O32Cl2, a new mineral in a CV3 Meteorite. 73rd Annual Meteoritical Society Meeting, 2010, 5134.pdf.

T. Sakakura, K. Tanaka, Y. Takenaka, S. Matsuishi, H. Hosono and S. Kishimoto (2011): Determination of the local structure of a cage with an oxygen ion in Ca12Al14O33. Acta Crystallogr. B67, 193-204.

Internet Links for Mayenite

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    • Localities for Mayenite

    The 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 Locality List
    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Austria
     
    • Styria
      • Bad Radkersburg
        • Klöch
    		R. Exel: Die Mineralien und Erzlagerstätten Österreichs (1993)
    Germany
     
    • Rhineland-Palatinate
      • Eifel
        • Daun
          • Üdersdorf
    		Schüller, W., Betz, V., Die Mineralien vom Emmelberg, Lapis 12/1986
        • Mayen
          • Ettringen
            • Bellerberg volcano
    		Hentschel, G. (1978): Seltene Minerale in Calcium-reichen Auswürflingen vom Bellerberg bei Mayen/Eifel, Aufschluß 29, 77-83
              • Southern lava flow
    		Hentschel, G. (1964): Mayenit, 12CaO . 7 Al2O3, und Brownmillerit, 2CaO.(Al,Fe)2O3, zwei neue Minerale in den Kalksteineinschlüssen der Lava des Ettringer Bellerberges, Neues Jahrbuch Mineralogie, Monatshefte, 22-29
    Rüdinger, B.; Tillmanns, E. Hentschel, G. (1993): Bellbergite – a New Mineral with the Zeolite Structure Type EAB, Mineralogy and Petrology 48, 147-152
              • Western lava flow
    		Hentschel, G. (1964): Mayenit, 12CaO . 7 Al2O3, und Brownmillerit, 2CaO.(Al,Fe)2O3, zwei neue Minerale in den Kalksteineinschlüssen der Lava des Ettringer Bellerberges, Neues Jahrbuch Mineralogie, Monatshefte, 22-29
    Israel
     
    • Negev
    		Shulamit Gross (1977) The mineralogy of the Hatrurim Formation, Israel. Geol. Surv. of Israel, Bull. # 70.; Sharygin, V.V., Sokol, E.V. & Vapnik, Ye. (2008): Minerals of the pseudobinary perovskite-brownmillerite series from combustion metamorphic larnite rocks of the Hatrurim Formation (Israel). Russian Geology and Geophysics 49, 709-726.
    Gross, S. (1977): The Mineralogy of the Hatrurim Formation, Israel. Geological Survey of Israel, Bulletin no. 70, 80 pp.
    • Tel Aviv District
    		Shulamit Gross (1977) The mineralogy of the Hatrurim Formation, Israel. Geol. Surv. of Israel, Bull. No. 70.
    Morocco
     
    • Meknès-Tafilalet Region
      • Er Rachidia Province
        • Erfoud (Erfud)
          • Rissani
    		Ma, C., Kampf, A.R., Connolly, H.C. Jr., Beckett, J.R., Rossman, G.R., Sweeney Smith, A.A., Schrader, D.L. (2011) Krotite: a new refractory mineral from the NWA 1934 meteorite. American Mineralogist, 96, 709-715.
    Palestine
     
    • West Bank
      • Hatrurim formation
    		Shulamit Gross (1977) The mineralogy of the Hatrurim Formation, Israel. Geol. Surv. of Israel, bull. # 70.
    Shulamit Gross (1977) The mineralogy of the Hatrurim Formation, Israel. Geol. Surv. of Israel, Bull. no. 70.
    Russia
     
    • Urals Region
      • Southern Urals
        • Chelyabinsk Oblast'
    		Chesnokov, B. V. (1993): Mayenite from the Chelyabinsk coal basin (the first occurrence in Russia). Doklady Akademii Nauk 331, 597-598 (in Russian).; Cesnokov, B., M. Kotrly, and T. Nisanbajev (1998): Brennende Abraumhalden und Aufschlüsse im Tscheljabinsker Kohlenbecken - eine reiche Mineralienküche. Mineralien-Welt, 9 (3), 54-63 (in German).
    Cesnokov, B., M. Kotrly, and T. Nisanbajev (1998): Brennende Abraumhalden und Aufschlüsse im Tscheljabinsker Kohlenbecken - eine reiche Mineralienküche. Mineralien-Welt, 9 (3), 54-63 (in German).
    Cesnokov, B., M. Kotrly, and T. Nisanbajev (1998): Brennende Abraumhalden und Aufschlüsse im Tscheljabinsker Kohlenbecken - eine reiche Mineralienküche. Mineralien-Welt, 9 (3), 54-63 (in German).
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