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Wiluite

Formula:
Ca
 
19
(Al,Mg,Fe,Ti)
 
13
(B,Al,[ ])
 
5
Si
 
18
O
 
68
(O,OH)
 
10
System:TetragonalColour:Dark green
Lustre:VitreousHardness:6
Name:Named after the discovery locality, Wilui River region, Saha Republic (Yakutia), Russia.


Vesuvianite Group.

Classification of Wiluite

IMA status:Approved 1997
Strunz 8th edition ID:8/C.26-20
Nickel-Strunz 10th (pending) edition ID:9.BG.35

9 : SILICATES (Germanates)
B : Sorosilicates
G : Sorosilicates with mixed SiO4 and Si2O7 groups; cations in octahedral [6] and greater coordination
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Type Occurrence of Wiluite

Type Locality:Vilyui River Basin (Vilui River Basin; Wilui River Basin), Saha Republic (Sakha Republic; Yakutia), Eastern-Siberian Region, Russia

Physical Properties of Wiluite

Lustre:Vitreous
Colour:Dark green
Streak:Colourless
Hardness (Mohs):6
Fracture:Irregular/Uneven

Crystallography of Wiluite

Crystal System:Tetragonal

Optical Data of Wiluite

Type:Uniaxial (+)
RI values: nω = 1.721 nε = 1.725
Maximum Birefringence:δ = 0.004

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

Chemical Properties of Wiluite

Formula:
Ca
 
19
(Al,Mg,Fe,Ti)
 
13
(B,Al,[ ])
 
5
Si
 
18
O
 
68
(O,OH)
 
10
Essential elements:Al, B, Ca, O, Si
All elements listed in formula:Al, B, Ca, Fe, H, Mg, O, Si, Ti

Relationship of Wiluite to other Species

Related to:
  • Vesuvianite Group
  • Related Minerals - Nickel-Strunz Grouping):

    - +
    9.BG.05Allanite-(Ce)
    {CaCe}{Al
     
    2
    Fe
    2+
     
    }[O|OH|SiO
     
    4
    |Si
     
    2
    O
     
    7
    ]
    9.BG.05Allanite-(La)
    {CaLa}{Al
     
    2
    Fe
    2+
     
    }[O|OH|SiO
     
    4
    |Si
     
    2
    O
     
    7
    ]
    9.BG.05Allanite-(Y)
    {CaY}{Al
     
    2
    Fe
    2+
     
    }[O|OH|SiO
     
    4
    |Si
     
    2
    O
     
    7
    ]
    9.BG.05Clinozoisite
    {Ca
     
    2
    }{Al
     
    3
    }[O|OH|SiO
     
    4
    |Si
     
    2
    O
     
    7
    ]
    9.BG.05Dissakisite-(Ce)
    {CaCe}{Al
     
    2
    Mg}[O|OH|SiO
     
    4
    |Si
     
    2
    O
     
    7
    ]
    9.BG.05Dollaseite-(Ce)
    {CaCe}{MgAlMg}[F|OH|SiO
     
    4
    |Si
     
    2
    O
     
    7
    ]
    9.BG.05Epidote
    {Ca
     
    2
    }{Al
     
    2
    Fe
    3+
     
    }[O|OH|SiO
     
    4
    |Si
     
    2
    O
     
    7
    ]
    9.BG.05Epidote-(Pb)
    {CaPb}{Al
     
    3
    }[O|OH|SiO
     
    4
    |Si
     
    2
    O
     
    7
    ]
    9.BG.05Khristovite-(Ce)
    {CaCe}{MgAlMn
    2+
     
    }[F|OH|SiO
     
    4
    |Si
     
    2
    O
     
    7
    ]
    9.BG.05Mukhinite
    {Ca
     
    2
    }{Al
     
    2
    V
    3+
     
    }[O|OH|SiO
     
    4
    |Si
     
    2
    O
     
    7
    ]
    9.BG.05Piemontite
    {Ca
     
    2
    }{Al
     
    2
    Mn
    3+
     
    }[O|OH|SiO
     
    4
    |Si
     
    2
    O
     
    7
    ]
    9.BG.05Piemontite-(Sr)
    {CaSr}{Al
     
    2
    Mn
    3+
     
    }[O|OH|SiO
     
    4
    |Si
     
    2
    O
     
    7
    ]
    9.BG.05Manganiandrosite-(La)
    {LaMn
    2+
     
    }{Mn
    3+
     
    AlMn
    2+
     
    }[O|OH|SiO
     
    4
    |Si
     
    2
    O
     
    7
    ]
    9.BG.05Tawmawite
    Ca
     
    2
    (Al,Fe
    3+
     
    ,Cr)
     
    3
    [O|OH|SiO
     
    4
    |Si
     
    2
    O
     
    7
    ]
    9.BG.05Manganipiemontite-(Sr)
    {CaSr}{Mn
    3+
     
    AlMn
    3+
     
    }[O|OH|SiO
     
    4
    |Si
     
    2
    O
     
    7
    ]
    9.BG.05Ferriallanite-(Ce)
    {CaCe}{Fe
    3+
     
    AlFe
    2+
     
    }[O|OH|SiO
     
    4
    |Si
     
    2
    O
     
    7
    ]
    9.BG.05Clinozoisite-(Sr)
    CaSrAl
     
    3
    (Si
     
    2
    O
     
    7
    )(SiO
     
    4
    )O(OH)
    9.BG.05Ferriepidote
    9.BG.05Manganiandrosite-(Ce)
    (Mn
    2+
     
    ,Ca)(Ce,REE)AlMn
    3+
     
    Mn
    2+
     
    (Si
     
    2
    O
     
    7
    )(SiO
     
    4
    )O(OH)
    9.BG.05Dissakisite-(La)
    {CaLa}{Al
     
    2
    Mg}[O|OH|SiO
     
    4
    |Si
     
    2
    O
     
    7
    ]
    9.BG.05Vanadoandrosite-(Ce)
    {Mn
    2+
     
    Ce}{V
    3+
     
    AlMn
    2+
     
    }[O|OH|SiO
     
    4
    |Si
     
    2
    O
     
    7
    ]
    9.BG.05Androsite-(La)
    9.BG.05Uedaite-(Ce)
    {Mn
    2+
     
    Ce}{Al
     
    2
    Fe
    2+
     
    }[O|OH|SiO
     
    4
    |Si
     
    2
    O
     
    7
    ]
    9.BG.05IMA2006-055
    CaSrAl
     
    2
    Fe
    3+
     
    (Si
     
    2
    O
     
    7
    )(SiO
     
    4
    )O(OH)
    9.BG.10Zoisite
    {Ca
     
    2
    }{Al
     
    3
    }[O|OH|SiO
     
    4
    |Si
     
    2
    O
     
    7
    ]
    9.BG.15Macfallite
    Ca
     
    2
    (Mn
    3+
     
    ,Al)
     
    3
    [(OH)
     
    3
    |SiO
     
    4
    |Si
     
    2
    O
     
    7
    ]
    9.BG.15Sursassite
    Mn
     
    2
    Al
     
    3
    [(OH)
     
    3
    |SiO
     
    4
    |Si
     
    2
    O
     
    7
    ]
    9.BG.20Julgoldite-(Fe2+)
    Ca
     
    2
    (Fe
    2+
     
    ,Mg)(Fe
    3+
     
    ,Al)
     
    2
    [(OH)
     
    2
    |SiO
     
    4
    |Si
     
    2
    O
     
    7
    ] · H
     
    2
    O
    9.BG.20Okhotskite
    Ca
     
    8
    (Mn,Mg)
     
    4
    (Mn,Al,Fe)
     
    8
    Si
     
    12
    O
     
    56-n
    (OH)
     
    n
    9.BG.20Pumpellyite-(Fe2+)
    Ca
     
    2
    Fe
    2+
     
    Al
     
    2
    [(OH)
     
    2
    |SiO
     
    4
    |Si
     
    2
    O
     
    7
    ] · H
     
    2
    O
    9.BG.20Pumpellyite-(Fe3+)
    Ca
     
    2
    (Fe
    3+
     
    ,Mg,Fe
    2+
     
    )(Al,Fe
    3+
     
    )
     
    2
    [(OH,O)
     
    2
    |SiO
     
    4
    |Si
     
    2
    O
     
    7
    ] · H
     
    2
    O
    9.BG.20Pumpellyite-(Mg)
    Ca
     
    2
    MgAl
     
    2
    [(OH)
     
    2
    |SiO
     
    4
    |Si
     
    2
    O
     
    7
    ] · H
     
    2
    O
    9.BG.20Pumpellyite-(Mn2+)
    Ca
     
    2
    (Mn
    2+
     
    ,Mg)(Al,Mn
    3+
     
    ,Fe
    3+
     
    )
     
    2
    [(OH)
     
    2
    |SiO
     
    4
    |Si
     
    2
    O
     
    7
    ] · H
     
    2
    O
    9.BG.20Shuiskite
    Ca
     
    2
    (Mg,Al)(Cr,Al)
     
    2
    [(OH)
     
    2
    |SiO
     
    4
    |Si
     
    2
    O
     
    7
    ] · 2H
     
    2
    O
    9.BG.20Julgoldite-(Fe3+)
    Ca
     
    2
    (Fe
    3+
     
    ,Mg)(Fe
    3+
     
    ,Al)
     
    2
    [(OH,O)
     
    2
    |SiO
     
    4
    |Si
     
    2
    O
     
    7
    ] · H
     
    2
    O
    9.BG.20Pumpellyite-(Al)
    Ca
     
    2
    (Al,Fe
    2+
     
    ,Mg)Al
     
    2
    [(OH,O)
     
    2
    |SiO
     
    4
    |Si
     
    2
    O
     
    7
    ] · H
     
    2
    O
    9.BG.20Poppiite
    Ca
     
    2
    (V
    3+
     
    ,Fe
    3+
     
    ,Mg)(V
    3+
     
    ,Al)
     
    2
    [(OH,O)
     
    2
    |SiO
     
    4
    |Si
     
    2
    O
     
    7
    ] · H
     
    2
    O
    9.BG.20Julgoldite-(Mg)
    Ca
     
    2
    (Mg,Fe
    2+
     
    )(Fe
    3+
     
    ,Al)
     
    2
    [(OH)
     
    2
    |SiO
     
    4
    |Si
     
    2
    O
     
    7
    ] · H
     
    2
    O
    9.BG.25Ganomalite
    Pb
     
    9
    Ca
     
    5
    Mn[O|SiO
     
    4
    |(Si
     
    2
    O
     
    7
    )
     
    4
    ]
    9.BG.30Rustumite
    Ca
     
    10
    (Si
     
    2
    O
     
    7
    )
     
    2
    (SiO
     
    4
    )Cl
     
    2
    (OH)
     
    2
    9.BG.35Vesuvianite
    Ca
     
    10
    (Mg,Fe)
     
    2
    Al
     
    4
    Si
     
    9
    O
     
    34
    (OH)
     
    4
    9.BG.35Manganvesuvianite
    Ca
     
    19
    Mn(Al,Mn,Fe)
     
    19
    (Mg,Mn)
     
    2
    Si
     
    18
    O
     
    69
    (OH)
     
    9
    9.BG.35Fluorvesuvianite
    Ca
     
    19
    (Al,Mg,Fe
    2+
     
    )
     
    13
    [(F,OH,O)
     
    10
    |(SiO
     
    4
    )
     
    10
    |(Si
     
    2
    O
     
    7
    )
     
    4
    ]
    9.BG.40Vyuntspakhkite-(Y)
    Y
     
    4
    Al
     
    3
    Si
     
    5
    O
     
    18
    (OH)
     
    5
    9.BG.45Dellaite
    Ca
     
    6
    Si
     
    3
    O
     
    11
    (OH)
     
    2
    9.BG.50Gatelite-(Ce)
    CaCe
     
    3
    Al
     
    2
    (Al,Mg)(Mg,Fe
    2+
     
    ,Al)[(O,F)|(OH,O)
     
    2
    |(SiO
     
    4
    )
     
    3
    |Si
     
    2
    O
     
    7
    ]
    9.BG.55Västmanlandite-(Ce)
    Ca(Ce,La)
     
    3
    Al
     
    2
    Mg
     
    2
    [F|(OH)
     
    2
    |(SiO
     
    4
    )
     
    3
    |Si
     
    2
    O
     
    7
    ]

    Other Names for Wiluite

    Synonyms:
    IMA1997-026
    Other Languages:
    German:Wiluit
    Spanish:Wiluita

    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 Wiluite

    Reference List:Canadian Mineralogist (1994): 32: 505-523.

    Groat, L.A., Hawthorne, F.C., Ercit, T.S., and Grice, J.D. (1998) Wiluite, Ca19(Al,Mg,Fe,Ti)13(B,Al,[])5Si18O68(O,OH)10, a new mineral species isostructural with vesuvianite, from the Sakha Republic, Russian Federation. Canadian Mineralogist (1998): 36: 1301-1304.

    Grew, E.S., and Anovitz, L.M. (1996) BORON: Mineralogy, Petrology and Geochemistry, second edition, as revised (2002).

    Bellatreccia, F., Cámara, F, Ottolini, L., Della Ventura, G., Cibin, G., and Mottana, A. (2005) Wiluite from Ariccia, Latium, Italy: Occurrence and Crystal Structure. Canadian Mineralogist: 43: 1457-1468.

    Articles/Blogs about Wiluite

    Internet Links for Wiluite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Wiluite in the Natural History Museum (London) online catalogue
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    Localities for Wiluite

    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.
    Canada
     
    • Québec
      • Ottawa Co.
    AmMin 84: 1466. (1999)
    Italy
     
    • Latium
      • Rome Province
    Caponera, I., Fiori, S., Pucci, R., & Signoretti, E. (2007). I minerali dei Colli Albani. Un aggiornamento sugli ultimi dieci anni di ricerche. Rivista Mineralogica Italiana, 31 (2), 74-91.
          • Ariccia
    Bellatreccia, F., Camara, F., Ottolini, L., Della Ventura, G., Cibin, G., Mottana, A., (2005): Wiluite from Ariccia, Latium, Italy..., Can. Min. Vol. 43, 1457-1468
    Russia
     
    • Eastern-Siberian Region
      • Saha Republic (Sakha Republic; Yakutia)
    [Can.Min.(1998) 36, 1301-1304; MinRec 31:206]
    USA
     
    • California
      • Tulare Co.
    AmMin 84:1466 (1999)
    Mineral and/or Locality
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