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Wadeite

Big Photo

Eveslogchorr Mt, Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia
© Elmar Lackner

Show Wadeite Photos (13)
Formula:
K
 
2
Zr[Si
 
3
O
 
9
]
System:HexagonalColour:Colourless, light blue ...
Hardness:5½ - 6
Name:Named after Arthur Wade (1878-1951), British-born Australian petroleum geologist, who first collected the material.


Benitoite Group.

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 pegmatite, Kimberley, 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

Related to:
  • Benitoite Group
    • 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
    CaZrSi
     
    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
    Zr[SiO
     
    4
    		]
    14.10.2Hafnon
    (Hf,Zr)[SiO
     
    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
    		[(OH,Cl)|Si
     
    6
    		O
     
    18
    		]·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
    		ZrSi
     
    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
    CaZr[Si
     
    2
    		O
     
    7
    		]
    14.10.20Calciocatapleiite
    CaZrSi
     
    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)[O
     
    2
    		|Si
     
    2
    		O
     
    7
    		]
    14.10.26Lovozerite
    (Na,Ca)
     
    3
    		(Zr,Ti)[Si
     
    6
    		(O,OH)
     
    18
    		]
    14.10.27Låvenite
    (Na,Ca)
     
    2
    		(Mn
    2+
     
    		,Fe
    2+
     
    		)(Zr,Ti)[(O,OH,F)
     
    2
    		|Si
     
    2
    		O
     
    7
    		]
    14.10.28Penkvilksite
    (Na,Ca)
     
    4
    		(Ti,Zr)
     
    2
    		Si
     
    8
    		O
     
    22
    		·5H
     
    2
    		O
    14.10.29Darapiosite
    KNa
     
    2
    		Li(Mn,Zn)
     
    2
    		ZrSi
     
    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
    		[O
     
    4
    		|SiO
     
    4
    		]
     
    3

    Other Names for Wadeite

    German names:
    Wadeit
    Russian names:
    Вадеит
    Spanish names:
    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

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    • External Links:
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  • Look for Wadeite on Athena Mineralogy
  • Look for Wadeite on Wikipedia
  • Look for Wadeite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Wadeite in the Natural History Museum (London) online catalogue
  • Wadeite details from Handbook of Mineralogy (PDF)
    • Mineral Dealers:
  • Find Wadeite on www.crystalclassics.co.uk
  • Fabre Minerals - search for Wadeite specimens
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    Localities for Wadeite

    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.
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    (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
        • Kimberley
    		No reference listed
      • Fitzroy Crossing
    		The Kimberlites and Lamproites of Western Australia, 1986.
    The Kimberlites and Lamproites of Western Australia, 1986.
      • West Kimberley Province
    		The Kimberlites and Lamproites of Western Australia, 1986.
    The Kimberlites and Lamproites of Western Australia, 1986.
    The Kimberlites and Lamproites of Western Australia, 1986.
      • Wyndham-East Kimberley Shire
        • Kimberley
          • Lake Argyle area
    		[MinRec 21:561]
    Brazil
     
    • Southeast Region
      • Minas Gerais
        • Poços de Caldas
    		Atencio et al. (1999) Can. Min. 37, 91-98.
    Canada
     
    • Québec
      • Rouville Co.
        • Mont Saint-Hilaire
    		No reference listed
    Russia
     
    • Eastern-Siberian Region
      • Saha Republic (Sakha Republic; Yakutia)
        • Aldan Shield
          • Torgo River Basin
            • Davan
              • Chara River (Charo River)
    		[Lapis 1993:4 p.13-20]
      • Transbaikalia (Zabaykalye)
        • Irkutskaya Oblast'
    • Northern Region
      • Murmanskaja Oblast'
        • Kola Peninsula
          • Khibiny Massif
    		[World of Stones 95:5-6, p64]
    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
            • Yukspor Mt
          • Kovdor Massif
    		[World of Stones 95:5-6, p64]
    www.koeln.netsurf.de/~w.steffens/lovo.htm
    South Africa
     
    • Northwest Province
    		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.
    • Wyoming
      • Sweetwater Co.
    		Rocks & Minerals 76:390
    Mineral and/or Locality
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