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Wadeite

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Formula:
K
 
2
Zr(Si
 
3
O
 
9
)
System:HexagonalColour:Colourless, light blue ...
Hardness:5½ - 6
Member of:Benitoite Group
Name:Named after Arthur Wade (1878-1951), British-born Australian petroleum geologist, who first collected the material.
This page provides mineralogical data about Wadeite.

Classification of Wadeite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:8/E.01-40
Nickel-Strunz 10th (pending) edition ID:9.CA.10

9 : SILICATES (Germanates)
C : Cyclosilicates
A : [Si3O9]6- 3-membered single rings (dreier-Einfachringe), without insular complex anions
Dana 8th edition ID:59.1.1.4

59 : CYCLOSILICATES Three-Membered Rings
1 : Three-Membered Rings, anhydrous, no other anions
Hey's CIM Ref.:14.10.13

14 : Silicates not Containing Aluminum
10 : Silicates of Zr or Hf
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Type Occurrence of Wadeite

Type Locality:Walgidee Hills lamproite, Noonkanbah Station, Derby-West Kimberley Shire, Western Australia, Australia
Year of Discovery:1938

Physical Properties of Wadeite

Lustre:Adamantine
Diaphaneity (Transparency):Transparent
Colour:Colourless, light blue or pink
Hardness (Mohs):5½ - 6

Crystallography of Wadeite

Crystal System:Hexagonal
Cell Parameters:a = 6.89Å, c = 10.17Å
Ratio:a:c = 1 : 1.476
Unit Cell Volume:V 418.11 ų (Calculated from Unit Cell)

Optical Data of Wadeite

Type:Uniaxial (+)
RI values: nω = 1.625 nε = 1.655
Maximum Birefringence:δ = 0.030

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Moderate

Chemical Properties of Wadeite

Formula:
K
 
2
Zr(Si
 
3
O
 
9
)
Essential elements:K, O, Si, Zr
All elements listed in formula:K, O, Si, Zr
Common Impurities:Ti,Al,Fe,Mg,Sr,Na,H2O,P

Relationship of Wadeite to other Species

Member of:Benitoite Group
Other Members of Group:

- +
Bazirite
BaZr(Si
 
3
O
 
9
)
Benitoite
BaTi(Si
 
3
O
 
9
)
Pabstite
Ba(Sn,Ti)(Si
 
3
O
 
9
)
Related Minerals - Nickel-Strunz Grouping):

- +
9.CA.05Bazirite
BaZr(Si
 
3
O
 
9
)
9.CA.05Benitoite
BaTi(Si
 
3
O
 
9
)
9.CA.05Pabstite
Ba(Sn,Ti)(Si
 
3
O
 
9
)
9.CA.15Calciocatapleiite
CaZr(Si
 
3
O
 
9
) · 2H
 
2
O
9.CA.15Catapleiite
Na
 
2
Zr(Si
 
3
O
 
9
) · 2H
 
2
O
9.CA.20Pseudowollastonite
CaSiO
 
3
9.CA.25Margarosanite
Pb(Ca,Mn
2+
 
)
 
2
(Si
 
3
O
 
9
)
9.CA.25Walstromite
BaCa
 
2
(Si
 
3
O
 
9
)
9.CA.30Bobtraillite
(Na,Ca)
 
13
Sr
 
11
(Zr,Y,Nb)
 
14
(Si
 
3
O
 
9
)
 
10
(H
 
2
BSi
 
2
O
 
9
)
 
6
· 12H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
14.10.1Zircon
ZrSiO
 
4
14.10.2Hafnon
HfSiO
 
4
14.10.3Zektzerite
LiNa(Zr,Ti,Hf)Si
 
6
O
 
15
14.10.4Parakeldyshite
Na
 
2
ZrSi
 
2
O
 
7
14.10.5Vlasovite
Na
 
2
ZrSi
 
4
O
 
11
14.10.6Keldyshite
(Na,H)
 
2
ZrSi
 
2
O
 
7
14.10.7Gaidonnayite
Na
 
2
Zr(Si
 
3
O
 
9
) · 2H
 
2
O
14.10.8Terskite
Na
 
4
ZrSi
 
6
O
 
16
· 2H
 
2
O
14.10.9Elpidite
Na
 
2
ZrSi
 
6
O
 
15
· 3H
 
2
O
14.10.10Hilairite
Na
 
2
Zr[SiO
 
3
]
 
3
· 3H
 
2
O
14.10.11Petarasite
Na
 
5
Zr
 
2
(Si
 
6
O
 
18
)(Cl,OH) · 2H
 
2
O
14.10.12Khibinskite
K
 
2
ZrSi
 
2
O
 
7
14.10.14Dalyite
K
 
2
ZrSi
 
6
O
 
15
14.10.15Kostylevite
K
 
2
Zr(Si
 
3
O
 
9
) · H
 
2
O
14.10.16Umbite
K
 
2
(Zr,Ti)Si
 
3
O
 
9
· H
 
2
O
14.10.17Paraumbite
K
 
3
Zr
 
2
H(Si
 
3
O
 
9
)
 
2
· nH
 
2
O
14.10.18Georgechaoite
NaKZr[Si
 
3
O
 
9
] · 2H
 
2
O
14.10.19Gittinsite
CaZrSi
 
2
O
 
7
14.10.20Calciocatapleiite
CaZr(Si
 
3
O
 
9
) · 2H
 
2
O
14.10.21Calciohilairite
CaZr[SiO
 
3
]
 
3
· 3H
 
2
O
14.10.22Armstrongite
CaZr[Si
 
6
O
 
15
] · 3H
 
2
O
14.10.23Lemoynite
(Na,K)
 
2
CaZr
 
2
Si
 
10
O
 
26
· 5H
 
2
O
14.10.24Catapleiite
Na
 
2
Zr(Si
 
3
O
 
9
) · 2H
 
2
O
14.10.25Baghdadite
Ca
 
3
(Zr,Ti)(Si
 
2
O
 
7
)O
 
2
14.10.26Lovozerite
Na
 
2
CaZr(H
 
4
Si
 
6
O
 
18
) · H
 
2
O
14.10.27Låvenite
(Na,Ca)
 
2
(Mn
2+
 
,Fe
2+
 
)(Zr,Ti)(Si
 
2
O
 
7
)(O,OH,F)
 
2
14.10.28Penkvilksite
Na
 
4
Ti
 
2
Si
 
8
O
 
22
· 4H
 
2
O
14.10.29Darapiosite
KNa
 
2
(Zn,Li)
 
3
(Mn,Zr)
 
2
[Si
 
12
O
 
30
]
14.10.30Bazirite
BaZr(Si
 
3
O
 
9
)
14.10.31Komkovite
BaZr[Si
 
3
O
 
9
] · 3H
 
2
O
14.10.32Zirsinalite
Na
 
6
(Ca,Mn
2+
 
,Fe
2+
 
)Zr(Si
 
6
O
 
18
)
14.10.33Tranquillityite
(Fe
2+
 
,Ca)
 
8
(Zr,Y)
 
2
Ti
 
3
(SiO
 
4
)
 
3
O
 
4

Other Names for Wadeite

Other Languages:
German:Wadeit
Russian:Вадеит
Spanish:Wadeita

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 Wadeite

Reference List:

- +
Report of the British Association (1938), p. 419.

Prider, R.T. (1939) Some minerals from the leucite-rich rocks of the West Kimberley, Western Australia. Mineralogical Magazine, 25, 374-387.

American Mineralogist (1940): 25, 254 (abstract).

Henshaw, D.E. (1955) The structure of wadeite. Mineralogical Magazine, 30, 585-595.

Kapustin, Y.L. (1963) Discovery of wadeite in the USSR. Doklady Acad. Nauk SSSR, 151, 1410-1412 (in Russian).

Chemical Abstracts (1963): 59: 15038 (abstract).

Blinov, V.A., N.G., Shumyatskaya, A.A. Voronkov, V.V. Ilyukhin, and N.V. Belov (1977) Refinement of the crystal
structure of wadeite K2Zr[Si3O9] and its relationship to kindred structural types. Kristallografiya (Sov. Phys. Crystal.), 22, 59-65 (in Russian).

Birch, W.D. (1985) A note on large crystals of priderite, jeppeite, wadeite and other minerals from Walgidee [Wolgidee] Hills, Western Australia. Australian Mineralogist, 50, 298-302.

Canadian Mineralogist (1992): 30: 1153.

Internet Links for Wadeite

Search Engines:
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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Wadeite details from Handbook of Mineralogy (PDF)
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  • Localities for Wadeite

    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.
    Australia
     
    • Western Australia
      • Derby-West Kimberley Shire
        • Ellendale
    The Kimberlites and Lamproites of Western Australia, 1986.
    The Kimberlites and Lamproites of Western Australia, 1986.
    The Kimberlites and Lamproites of Western Australia, 1986.
        • Fitzroy Crossing
    The Kimberlites and Lamproites of Western Australia, 1986.
    The Kimberlites and Lamproites of Western Australia, 1986.
        • Noonkanbah Station
    Mineralogical Magazine 1939 25 : 373-387; Mineralogical Magazine 1984 48 : 263-266
      • Wyndham-East Kimberley Shire
        • Lake Argyle area
    [MinRec 21:561]
    Brazil
     
    • Minas Gerais
      • Poços de Caldas plateau
        • Poços de Caldas alkaline complex
    ATENCIO, D., COUTINHO, J.M.C., ULBRICH, M.N.C., VLACH, S.R.F., RASTVETAEVA, R.K. & PUSHCHAROVSKY, D.Yu. (1999) Hainite from Poços de Caldas, Minas Gerais, Brazil. Canadian Mineralogist, 37, 91-98.
    Canada
     
    • Québec
      • Montérégie
        • Rouville RCM
          • Mont Saint-Hilaire
    HORVÁTH, L. & PFENNINGER-HORVÁTH, E. (2000) I minerali di Mont-Saint-Hilaire (Québec, Canada) Rivista Mineralogica Italiana, XXIV, 140-202 (in Italian with English summary).
    Russia
     
    • Eastern-Siberian Region
      • Prebaikalia (Pribaikal'e)
        • Irkutskaya Oblast'
    Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
      • Saha Republic (Sakha Republic; Yakutia)
        • Aldan Shield
          • Chara and Tokko Rivers Confluence
    [Lapis 1993:4 p.13-20]
              • Ditmar stream
    Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
              • Sirenevyi Kamen' Deposit
    Konev, A.A., Vorob'yev, E.I., and Lazebnik, K.A. (1996) The Mineralogy of the Murun Massif. Russian Academy of Science Press, Siberian Branch, Novosbirsk, Russia (in Rus.)
    • Northern Region
      • Murmanskaja Oblast'
        • Kola Peninsula
          • Khibiny Massif
    [World of Stones 95:5-6, p64]; Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
    P.M. Kartashov data
    Pekov, I.V. & Podlesnyi, A.S. (2004): Kukisvumchorr Deposit: Mineralogy of Alkaline Pegmatites and Hydrotermalites. Mineralogical Almanac, vol. 7, 140 pages + xxiv photo's pages
            • Rasvumchorr Mt
    P.M. Kartashov data
    Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 4, 2000; Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
            • Yukspor Mt
    Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
          • Kovdor Massif
    [World of Stones 95:5-6, p64]
    www.koeln.netsurf.de/~w.steffens/lovo.htm
    South Africa
     
    • North West Province
      • Swartruggens
    Mineralogy and Petrology Volume 76 Issue 1-2 (2002) pp 1-19
    Spain
     
    • Murcia
      • Jumilla
        • La Celia
    E. Salvioli-mariani et al. , Eur. J. Mineral. , 1996, 8, pp. 1027-1039.
    USA
     
    • Montana
      • Meagher Co.
    www.cseg.ca/conferences/2000/376.PDF.; Chakhmouradian, A. R. & Mitchell, R. H. (2002): The mineralogy of Ba- and Zr-rich alkaline pegmatites from Gordon Butte, Crazy Mountains (Montana, USA): comparisons between potassic and sodic agpaitic pegmatites. Contributions to Mineralogy and Petrology 143, 93-114.
    • Wyoming
      • Sweetwater Co.
    Rocks & Minerals 76:390
    Mineral and/or Locality
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    Copyright © Jolyon Ralph and Ida Chau 1993-2013. 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. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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