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Gadolinite-(Ce)

Big Photo

Washington Pass, Golden Horn Batholith, Okanogan Co., Washington, USA
© Saul Krotki 2009

Show Gadolinite-(Ce) Photos (10)
Formula:
(Ce,La,Nd,Y)
 
2
Fe
2+
 
Be
 
2
[O|SiO
 
4
]
 
2
System:MonoclinicColour:Black
Lustre:VitreousHardness:6½ - 7
Name: Named after J.Gadolin and for cerium as its dominant rare earth element.
= IMA 2004-04


Gadolinite-Datolite Group. The cerium analogue of Gadolinite-(Y).

Classification of Gadolinite-(Ce)

IMA status:Approved 2004
Strunz 8th edition ID:8/B.29-60
Nickel-Strunz 10th (pending) edition ID:9.AJ.20

9 : SILICATES (Germanates)
A : Nesosilicates
J : Nesosilicates with BO3 triangles and/or B[4], Be[4] tetrahedra, cornersharing with SiO4
Dana 8th edition ID:54.2.1b.2

54 : NESOSILICATES Borosilicates and Some Beryllosilicates
2 : Borosilicates and Some Beryllosilicates with B in [4] coordination
Hey's CIM Ref.:14.3.24

14 : Silicates not Containing Aluminum
3 : Silicates of Be
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Type Occurrence of Gadolinite-(Ce)

Co-type Localities:Tawara (Tahara), Hirukawa, Nakatsugawa City, Gifu Prefecture, Chubu Region, Honshu Island, Japan
Buer, Bjørkedalen, Porsgrunn, Telemark, Norway

Physical Properties of Gadolinite-(Ce)

Lustre:Vitreous
Colour:Black
Hardness (Mohs):6½ - 7

Crystallography of Gadolinite-(Ce)

Crystal System:Monoclinic
Cell Parameters:a = 9.8973Å, b = 7.6282Å, c = 4.7505Å
β = 90.416°
Ratio:a:b:c = 1.297 : 1 : 0.623
Unit Cell Volume:V 358.65 ų (Calculated from Unit Cell)
X-Ray Powder Diffraction:
d-spacingIntensity
6.06 (42)
3.74 (37)
3.44 (34)
3.13 (86)
2.85 (100)
2.56 (46)
2.21 (33)

Chemical Properties of Gadolinite-(Ce)

Formula:
(Ce,La,Nd,Y)
 
2
Fe
2+
 
Be
 
2
[O|SiO
 
4
]
 
2
Essential elements:Be, Ce, Fe, O, Si
All elements listed in formula:Be, Ce, Fe, La, Nd, O, Si, Y

Relationship of Gadolinite-(Ce) to other Species

Related to:
  • Gadolinite-Datolite Group
    • Related Minerals - Nickel-Strunz Grouping):

    - +
    9.AJ.05Grandidierite
    (Mg,Fe
    2+
     
    		)(Al,Fe
    3+
     
    		)
     
    3
    		[O
     
    2
    		|BO
     
    3
    		|SiO
     
    4
    		]
    9.AJ.05Ominelite
    (Fe
    2+
     
    		,Mg)(Al,Fe
    3+
     
    		)
     
    3
    		[O
     
    2
    		|BO
     
    3
    		|SiO
     
    4
    		]
    9.AJ.10Dumortierite
    (Al,Fe
    3+
     
    		)
     
    7
    		[O
     
    3
    		|BO
     
    3
    		|(SiO
     
    4
    		)
     
    3
    		]
    9.AJ.10Holtite
    (Ta,Sb)Al
     
    6
    		[O
     
    3
    		|BO
     
    3
    		|(SiO
     
    4
    		)
     
    3
    		]
    9.AJ.10Magnesiodumortierite
    (Mg,Ti,[](Al,Mg)
     
    2
    		Al
     
    4
    		Si
     
    3
    		O
     
    18-y
    		(OH)
     
    y
    		B y = 2-3
    9.AJ.15Garrelsite
    Ba
     
    3
    		NaSi
     
    2
    		B
     
    7
    		O
     
    16
    		(OH)
     
    4
    9.AJ.20Bakerite
    Ca
     
    4
    		B
     
    4
    		[(OH)
     
    4
    		|HBO
     
    4
    		|(SiO
     
    4
    		)
     
    3
    		]
    9.AJ.20Datolite
    CaB[OH|SiO
     
    4
    		]
    9.AJ.20Gadolinite-(Y)
    Y
     
    2
    		Fe
    2+
     
    		Be
     
    2
    		[O|SiO
     
    4
    		]
     
    2
    9.AJ.20Hingganite-(Ce)
    Ce
     
    2
    		□Be
     
    2
    		Si
     
    2
    		O
     
    8
    		(OH)
     
    2
    9.AJ.20Hingganite-(Y)
    (Y,Yb,Er)Be[OH|SiO
     
    4
    		]
    9.AJ.20Hingganite-(Yb)
    (Yb,Y)Be[OH|SiO
     
    4
    		]
    9.AJ.20Homilite
    Ca
     
    2
    		(Fe
    2+
     
    		,Mg)B
     
    2
    		[O|SiO
     
    4
    		]
     
    2
    9.AJ.20Melanocerite-(Ce)
    (Ce,Ca)
     
    5
    		(Si,B)
     
    3
    		O
     
    12
    		(OH,F)·nH
     
    2
    		O
    9.AJ.20Minasgeraisite-(Y)
    Y
     
    2
    		CaBe
     
    2
    		[O|SiO
     
    4
    		]
     
    2
    9.AJ.20Calcybeborosilite-(Y)
    (Y,Ca)
     
    2
    		(B,Be)
     
    2
    		[SiO
     
    4
    		]
     
    2
    		(OH,O)
     
    2
    9.AJ.25Stillwellite-(Ce)
    (Ce,La,Ca)BSiO
     
    5
    9.AJ.30Cappelenite-(Y)
    Ba(Y,Ce)
     
    6
    		Si
     
    3
    		B
     
    6
    		O
     
    24
    		F
     
    2
    9.AJ.35Okanoganite-(Y)
    (Na,Ca)
     
    3
    		(Y,Ce)
     
    12
    		Si
     
    6
    		B
     
    2
    		O
     
    27
    		F
     
    14
    9.AJ.35Vicanite-(Ce)
    (Ca,Ce,La,Th)
     
    15
    		As
    5+
     
    		(As
    3+
    0.5
    		,Na
     
    0.5
    		)Fe
    3+
     
    		Si
     
    6
    		B
     
    4
    		O
     
    40
    		F
     
    7
    9.AJ.35Hundholmenite-(Y)
    (Y,REE,Ca,Na)
     
    15
    		(Al,Fe
    3+
     
    		)(Ca
     
    x
    		As
    3+
    1-x
    		)(Si,As
    5+
     
    		)Si
     
    6
    		B
     
    3
    		(O,F)
     
    48
    9.AJ.35Proshchenkoite-(Y)
    (Y,REE,Ca,Na,Mn)
     
    15
    		Fe
    2+
     
    		Ca(P,Si)Si
     
    6
    		B
     
    3
    		O
     
    34
    		F
     
    14
    9.AJ.40Jadarite
    LiNaSiB
     
    3
    		O
     
    7
    		(OH)
    Related Minerals - Hey's Index Grouping:

    - +
    14.3.1Phenakite
    Be
     
    2
    		[SiO
     
    4
    		]
    14.3.2Bertrandite
    Be
     
    4
    		[(OH)
     
    2
    		|Si
     
    2
    		O
     
    7
    		]
    14.3.3Beryllite
    Be
     
    3
    		[(OH)
     
    2
    		|SiO
     
    4
    		] · H
     
    2
    		O
    14.3.4Liberite
    Li
     
    2
    		Be[SiO
     
    4
    		]
    14.3.5Chkalovite
    Na
     
    2
    		BeSi
     
    2
    		O
     
    6
    14.3.6Eudidymite
    Na
     
    2
    		Be
     
    2
    		Si
     
    6
    		O
     
    15
    		·H
     
    2
    		O
    14.3.7Epididymite
    Na
     
    2
    		Be
     
    2
    		Si
     
    6
    		O
     
    15
    		·H
     
    2
    		O
    14.3.8Gugiaite
    Ca
     
    2
    		Be[Si
     
    2
    		O
     
    7
    		]
    14.3.9Jeffreyite
    (Ca,Na)
     
    2
    		(Be,Al)[Si
     
    2
    		O
     
    6
    		(O,OH)]
    14.3.10Semenovite-(Ce)
    (Na,Ca)
     
    9
    		Fe
    2+
     
    		(Ce,La)
     
    2
    		[(Si,Be)
     
    5
    		(O,OH,F)
     
    12
    		]
     
    4
    14.3.11Barylite
    BaBe
     
    2
    		[Si
     
    2
    		O
     
    7
    		]
    14.3.12Hingganite-(Ce)
    Ce
     
    2
    		□Be
     
    2
    		Si
     
    2
    		O
     
    8
    		(OH)
     
    2
    14.3.13Hingganite-(Yb)
    (Yb,Y)Be[OH|SiO
     
    4
    		]
    14.3.14Hingganite-(Y)
    (Y,Yb,Er)Be[OH|SiO
     
    4
    		]
    14.3.15Minasgeraisite-(Y)
    Y
     
    2
    		CaBe
     
    2
    		[O|SiO
     
    4
    		]
     
    2
    14.3.16Sørensenite
    Na
     
    4
    		SnBe
     
    2
    		Si
     
    6
    		O
     
    16
    		(OH)
     
    4
    14.3.17Trimerite
    CaMn
    2+
    2
    		Be
     
    3
    		[SiO
     
    4
    		]
     
    3
    14.3.18Chiavennite
    CaMnBe
     
    2
    		Si
     
    5
    		O
     
    13
    		(OH)
     
    2
    		·2H
     
    2
    		O
    14.3.19Tvedalite
    (Ca,Mn)
     
    4
    		Be
     
    3
    		Si
     
    6
    		O
     
    17
    		(OH)
     
    4
    		·3H
     
    2
    		O
    14.3.20Harstigite
    Ca
     
    6
    		(Mn,Mg)Be
     
    4
    		Si
     
    6
    		(O,OH)
     
    24
    14.3.21Sverigeite
    NaMnMgSnBe
     
    2
    		Si
     
    3
    		O
     
    12
    		(OH)
    14.3.22Joesmithite
    [(Ca,Pb)][(Ca,Pb)
     
    2
    		][(Mg,Fe
    2+
     
    		)
     
    5
    		][(OH)
     
    2
    		|BeSi
     
    7
    		O
     
    22
    		]
    14.3.23Gadolinite-(Y)
    Y
     
    2
    		Fe
    2+
     
    		Be
     
    2
    		[O|SiO
     
    4
    		]
     
    2
    14.3.25Calciogadolinite
    (Y,Ca)
     
    2
    		(Fe,Fe)Be
     
    2
    		Si
     
    2
    		(O,OH)
     
    10

    Other Names for Gadolinite-(Ce)

    Other Languages:
    Russian:Гадолинит-(Ce)

    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 Gadolinite-(Ce)

    Reference List:American Mineralogist: 63: 188-195.

    Internet Links for Gadolinite-(Ce)

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Gadolinite-(Ce) in the Natural History Museum (London) online catalogue
  • Gadolinite-(Ce) details from Handbook of Mineralogy (PDF)
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    Localities for Gadolinite-(Ce)

    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.
    Austria
     
    • Salzburg
      • Hohe Tauern Mts
        • Gastein valley
          • Böckstein
    		Wittern A., Taschenbuch der Mineralienfundstellen Mitteleuropas, Österreich, 1994, S.22
        • Habach Valley
          • Nasenkopf Mt.
            • Leckbachgraben (Leckbachrinne)
    		R. Exel: Die Mineralien und Erzlagerstätten Österreichs (1993)
    Germany
     
    • Lower Saxony
      • Harz Mts
        • Bad Harzburg
    		No reference listed
    Italy
     
    • Latium
      • Viterbo Province
        • Vico Lake
    		No reference listed
    Carlini, R., Signoretti, E., 2003. Località minori del vulcano Vicano: Villa S.Giovanni in Tuscia e Mazzocchio. Il Cercapietre. Not. del Gruppo Mineralogico Romano, 1-2: 33-41
    • Piedmont
      • Verbano-Cusio-Ossola Province
        • Baveno
          • Oltrefiume
            • Mount Camoscio
    		American Mineralogist, 84(5-6), 782-789
    Japan
     
    • Honshu Island
      • Chubu Region
        • Gifu Prefecture
          • Nakatsugawa City
            • Hirukawa
    		IMA-CNMMN approval, 2004-04
    Norway
     
    • Telemark
      • Porsgrunn
        • Bjørkedalen
    		[Amer.Min.(1978) 63, 188-195; Clark, 1993, 249 - "Hey's Mineral Index - 3rd Edition"]
    Knut Eldjarn
        • Langangen
          • Kokkersvold - Blåfjell
    		Am Min 68:5-6 pp 628-633
    • Vestfold
      • Larvik
        • Hedrum
          • Lågendalen
        • Tjølling
          • Håkestad
    		Engvoldsen,T.,Andersen, F.,Berge, S.A. & Burvald, I. (1991): Pegmatittmineraler fra Larvik ringkompleks. STEIN 18(1),15-71
          • Klåstad
    		Hansen,R.(1981)."Mineralnotater". NAGS-nytt 8(4),18 (in norwegian)
          • Stålaker
    		Engvoldsen,T.,Andersen, F.,Berge, S.A. & Burvald, I. (1991): Pegmatittmineraler fra Larvik ringkompleks. STEIN 18(1),15-71
        • Tvedalen
    		Engvoldsen,T.,Andersen, F.,Berge, S.A. & Burvald, I. (1991): Pegmatittmineraler fra Larvik ringkompleks. STEIN 18(1),15-71
    Engvoldsen,T.,Andersen, F.,Berge, S.A. & Burvald, I. (1991): Pegmatittmineraler fra Larvik ringkompleks. STEIN 18(1),15-71
    Collection of Peter Andresen.
    Engvoldsen,T.,Andersen, F.,Berge, S.A. & Burvald, I. (1991): Pegmatittmineraler fra Larvik ringkompleks. STEIN 18(1),15-71
    Engvoldsen,T.,Andersen, F.,Berge, S.A. & Burvald, I. (1991): Pegmatittmineraler fra Larvik ringkompleks. STEIN 18(1),15-71
        • Vardaasen
    		Collection of Peter Andresen.
    Russia
     
    • Northern Region
      • Murmanskaja Oblast'
        • Kola Peninsula
    		www.koeln.netsurf.de/~w.steffens/khib.htm
            • Kukisvumchorr Mt
              • East slope
    		EJM 19, 95-103(2007)
    Sweden
     
    • Västmanland
      • Norberg
    		Nysten,P. & Gustafsson, L.(2006): I jakt på sällsynta mineral. Geologiskt forum nr 49, 22-25
    Nysten,P. & Gustafsson, L.(2006): I jakt på sällsynta mineral. Geologiskt forum nr 49, 22-25
    Nysten,P. & Gustafsson, L.(2006): I jakt på sällsynta mineral. Geologiskt forum nr 49, 22-25
    USA
     
    • Colorado
      • Jefferson Co.
        • Clear Creek pegmatite Province
    		Minerals of Colorado (1997) Eckels, E. B.
        • South Platte Pegmatite District
    		Minerals of Colorado (1997) Eckels, E. B.
    Minerals of Colorado (1997) Eckels, E. B.
    Ream, Lanny R. 2004. Idaho Minerals, 2nd edition, Revised and Updated
    • New Hampshire
      • Grafton Co.
        • Bethlehem
    		No reference listed
    • Washington
      • Okanogan Co.
        • Golden Horn Batholith
    		Metamict crystal identified by XRD after annealing at 700° for 48 hours by John Attard, 12Dec08. Results indicated a distinct match to type material from the Oslo, Norway area as reported by Segalstad and Larsen, American Mineralogist, V 63, 1973, \"Gadolinite-(Ce) from Skien, southwestern Oslo region, Norway.\" Over forty EDS spectra accomplished by Saul Krotki, with John Attard and Bart Cannon, confirm the cerium dominant species differing from previously reported yttrium dominant species from WA Pass. Here only the outermost skins of the crystals are yttrium dominant.
    Mineral and/or Locality
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