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Wadalite

Big Photo

Caspar quarry, Ettringer Bellerberg Mt. (Bellberg Mt.; Bellenberg Mt.; Billenberg Mt.; Boilenberg Mt.), Bellerberg volcano, Ettringen, Mayen, Eifel Mts, Rhineland-Palatinate, Germany
© Stephan Wolfsried

Show Wadalite Photos (5)
Formula:
Ca
 
6
(Al,Mg)
 
4
[Cl
 
3
|O
 
4
|{(Si,Al,Fe
3+
 
)O
 
4
}
 
3
]
System:IsometricColour:Lemon-yellow, ...
Name:Named after Tsunashiro Wada (1856-1920), the first director general of the Geological Survey of Japan.


Garnet Group.

Classification of Wadalite

IMA status:Approved 1993
Strunz 8th edition ID:8/A.08-155
Nickel-Strunz 10th (pending) edition ID:9.AD.25

9 : SILICATES (Germanates)
A : Nesosilicates
D : Nesosilicates without additional anions; cations in [6] and/or greater coordination
Dana 8th edition ID:51.4.5.1

51 : NESOSILICATES Insular SiO4 Groups Only
4 : Insular SiO4 Groups Only with cations in [6] and >[6] coordination
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Type Occurrence of Wadalite

Type Locality:Koriyama, Fukushima Prefecture, Tohoku Region, Honshu Island, Japan
Place of Conservation of Type Material:Geology Museum (Geological Survey of Japan)
Year of Discovery:1987
Geological Setting of type material:calcsilicate xenolith

Physical Properties of Wadalite

Lustre:Vitreous
Diaphaneity (Transparency):Transparent, Translucent
Colour:Lemon-yellow, colourless, grey
Streak:colourless
Density (calculated):3.06 g/cm3

Crystallography of Wadalite

Crystal System:Isometric
Class (H-M):4 3m - Hextetrahedral
Space Group:I4 3d
Cell Parameters:a = 12.014Å
Unit Cell Volume:V 1,734.06 ų (Calculated from Unit Cell)
Z:4

Optical Data of Wadalite

Type:Isotropic
RI values: n = 1.708
Maximum Birefringence:δ = 0.000 - Isotropic minerals have no birefringence
Surface Relief:High

Chemical Properties of Wadalite

Formula:
Ca
 
6
(Al,Mg)
 
4
[Cl
 
3
|O
 
4
|{(Si,Al,Fe
3+
 
)O
 
4
}
 
3
]
Essential elements:Al, Ca, Cl, O, Si
All elements listed in formula:Al, Ca, Cl, Fe, Mg, O, Si
Common Impurities:Mg,Fe

Relationship of Wadalite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
9.AD.05Larnite
Ca
 
2
[SiO
 
4
]
9.AD.10Calcio-Olivine
Ca
 
2
[SiO
 
4
]
9.AD.15Merwinite
Ca
 
3
Mg[SiO
 
4
]
 
2
9.AD.20Bredigite
Ca
 
7
Mg[SiO
 
4
]
 
4
9.AD.25Andradite
Ca
 
3
Fe
3+
2
[SiO
 
4
]
 
3
9.AD.25Almandine
Fe
2+
3
Al
 
2
[SiO
 
4
]
 
3
9.AD.25Calderite
(Mn
2+
 
,Ca)
 
3
(Fe
3+
 
,Al)
 
2
[SiO
 
4
]
 
3
9.AD.25Goldmanite
Ca
 
3
(V
3+
 
,Al,Fe
3+
 
)
 
2
[SiO
 
4
]
 
3
9.AD.25Grossular
Ca
 
3
Al
 
2
[SiO
 
4
]
 
3
9.AD.25Henritermierite
Ca
 
3
(Mn
3+
 
,Al)
 
2
[(OH)
 
4
|(SiO
 
4
)
 
2
]
9.AD.25Hibschite
Ca
 
3
Al
 
2
[(OH)
 
6-1
|(SiO
 
4
)
 
1.5-2.5
]
9.AD.25Hydroandradite
Ca
 
3
Fe
3+
2
(SiO
 
4
)
 
3-x
(OH)
 
4x
9.AD.25Katoite
Ca
 
3
Al
 
2
[(OH)
 
8-6
|(SiO
 
4
)
 
1-1.5
]
9.AD.25Kimzeyite
Ca
 
3
(Zr,Ti)
 
2
[(Si,Al,Fe
3+
 
)O
 
4
]
 
3
9.AD.25Knorringite
Mg
 
3
Cr
 
2
[SiO
 
4
]
 
3
9.AD.25Majorite
Mg
 
3
(Fe
2+
 
,Si,Al)
 
2
[SiO
 
4
]
 
3
9.AD.25Morimotoite
Ca
 
3
(Ti,Fe
2+
 
,Fe
3+
 
)
 
2
[(Si,Fe
3+
 
)O
 
4
]
 
3
 (?)
9.AD.25Pyrope
Mg
 
3
Al
 
2
[SiO
 
4
]
 
3
9.AD.25Schorlomite
Ca
 
3
(Ti,Fe
3+
 
)
 
2
[(Si,Fe
3+
 
,Fe
2+
 
)O
 
4
]
 
3
9.AD.25Spessartine
Mn
2+
3
Al
 
2
[SiO
 
4
]
 
3
9.AD.25Uvarovite
Ca
 
3
Cr
 
2
[SiO
 
4
]
 
3
9.AD.25Holtstamite
Ca
 
3
(Al,Mn
3+
 
)
 
2
(SiO
 
4
)
 
2
(OH)
 
4
9.AD.25IMA2009-029
Ca
 
3
Zr
 
2
(Fe
3+
2
Si)O
 
12
9.AD.25IMA2009-033
Ca
 
3
Sn
 
2
(Fe
 
2
Si)O
 
12
9.AD.25IMA2009-026
(Mn
2+
 
,Ca)
 
3
V
3+
2
(SiO
 
4
)
 
3
9.AD.30Coffinite
(U,Th)[(OH)
 
4x
|(SiO
 
4
)
 
1-x
]
9.AD.30Hafnon
(Hf,Zr)[SiO
 
4
]
9.AD.30Thorite
(Th,U)[SiO
 
4
]
9.AD.30Thorogummite
(Th,U)[(OH)
 
4x
|(SiO
 
4
)
 
1-x
]
9.AD.30Zircon
Zr[SiO
 
4
]
9.AD.30Stetindite
CeSiO
 
4
9.AD.35Huttonite
Th[SiO
 
4
]
9.AD.35Tombarthite-(Y)
Y
 
4
[HSiO
 
4
]
 
3
9.AD.40Eulytine
Bi
 
4
[SiO
 
4
]
 
3
9.AD.45Reidite
Zr[SiO
 
4
]

Other Names for Wadalite

Synonyms:
IMA1987-045
Other Languages:
German:Wadalit
Russian:Вадалит
Spanish:Wadalita

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 Wadalite

Reference List:Feng, Q. L., Glasser, F. P., Howie, R. A., Lachowski, E. E. (1988): Chlorosilicate with the 12CaO.7Al2O3 structure and its relationship to garnet. Acta Crystallogr., C44, 589-92.

Tsukimura, K., Kanazawa, Y., Aoki, M. and Bunno, M. (1993): Structure of wadalite Ca6Al5Si2O16Cl3. Acta Crystallographica, C49, 205-207.

American Mineralogist (1993): 78: 1317.

Glasser, F. P. (1995). Comments on wadalite, Ca6Al5SiO16Cl3, and the structures of garnet, mayenite and calcium chlorosilicate. Addendum. Acta Crystallogr. C51, 340.

Kanazawa, Y., Aoki, M., & Takeda, H. (1997): Wadalite, rustumite, and spurrite from La Negra mine, Queretaro, Mexico. Chishitsu Chosasho Geppo 48, 413-420.

European Journal of Mineralogy (1997): 9: 220.

Fujita, S., Suzuki, K., Ohkawa, M., Shibasaki, Y. & Mori, T. (2001): Reaction of hydrogrossular with hydrogen chloride gas at high temperature. Chemistry of Materials 13, 2523-2527.

T. Mihajlović, C. L. Lengauer, T. Ntaflos, U. Kolitsch and E. Tillmanns (2004): Two new minerals rondorfite, Ca8Mg[SiO4]4Cl2, and almarudite, K(ٱ,Na)2(Mn,Fe,Mg)2(Be,Al)3[Si12O30], and a study of iron-rich wadalite, Ca12[(Al8Si4Fe2)O32]Cl6, from the Bellerberg (Bellberg) volcano, Eifel, Germany. N. Jahrb. Mineral. Abh. 179, 265-294.

Internet Links for Wadalite

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    Localities for Wadalite

    Hide Locality List
    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.
    (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.
    Germany
     
    • Rhineland-Palatinate
      • Eifel Mts
        • Mayen
          • Ettringen
            • Bellerberg volcano
              • Ettringer Bellerberg Mt. (Bellberg Mt.; Bellenberg Mt.; Billenberg Mt.; Boilenberg Mt.)
    		T. Mihajlović, C. L. Lengauer, T. Ntaflos, U. Kolitsch and E. Tillmanns (2004): Two new minerals rondorfite, Ca8Mg[SiO4]4Cl2, and almarudite, K(ٱ,Na)2(Mn,Fe,Mg)2(Be,Al)3[Si12O30], and a study of iron-rich wadalite, Ca12[(Al8Si4Fe2)O32]Cl6, from the Bellerberg (Bellberg) volcano, Eifel, Germany. N. Jahrb. Mineral. Abh. 179, 265-294.
    Japan
     
    • Honshu Island
      • Tohoku Region
        • Fukushima Prefecture
    		[Acta Cryst. 49C (1993), 205; EJM 9 (1997), 220; MinRec 32:421]
    Mexico
     
    • Queretaro
      • Mun. de Cadereyta
        • Maconi
    		[MinRec 32:421]
    Russia
     
    • Northern Caucasus Region
      • Kabardino-Balkarian Republic
    		American Mineralogist, Volume 94, pages 1361–1370, 2009
        • Verkhnechegemskiy volcanic structure
    		A. E. Zadov data
    Mineral and/or Locality
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    Copyright © Jolyon Ralph and Ida Chau 1993-2009. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 19th Oct 2009 03:57:34