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Gadolinite-(Ce)

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Formula:
(Ce,La,Nd,Y)
 
2
Fe
2+
 
Be
 
2
Si
 
2
O
 
10
Often slightly radioactive due to minor U and/or Th contents; therefore often metamict.
System:MonoclinicColour:Black
Lustre:VitreousHardness:6½ - 7
Member of:Gadolinite-Datolite Group
Name:
Named after J. Gadolin and for cerium as its dominant rare earth element.


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)
1.976 (30)

Chemical Properties of Gadolinite-(Ce)

Formula:
(Ce,La,Nd,Y)
 
2
Fe
2+
 
Be
 
2
Si
 
2
O
 
10


Often slightly radioactive due to minor U and/or Th contents; therefore often metamict.
Simplified for copy/paste:(Ce,La,Nd,Y)2Fe2+Be2Si2O10
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

Member of:Gadolinite-Datolite Group
Other Members of Group:

- +
Bakerite
Ca
 
4
(H
 
5
B
 
5
Si
 
3
O
 
20
)
Calcybeborosilite-(Y)
(Y,Ca)
 
2
(□,Fe
2+
 
)(B,Be)
 
2
[SiO
 
4
]
 
2
(OH,O)
 
2
Datolite
Ca(HBSiO
 
5
)
Gadolinite-(Y)
Y
 
2
Fe
2+
 
Be
 
2
Si
 
2
O
 
10
Hingganite-(Ce)
(Ce,REE)
 
2
(□,Fe
2+
 
)Be
 
2
[SiO
 
4
]
 
2
(OH)
 
2
Hingganite-(Y)
(Y,REE,Ca)
 
2
(□,Fe
2+
 
)Be
 
2
[SiO
 
4
]
 
2
(OH)
 
2
Hingganite-(Yb)
(Yb,Y,REE)
 
2
□Be
 
2
[SiO
 
4
]
 
2
(OH)
 
2
Homilite
Ca
 
2
(Fe
2+
 
,Mg)B
 
2
Si
 
2
O
 
10
Minasgeraisite-(Y)
CaBe
 
2
Y
 
2
Si
 
2
O
 
10
Related Minerals - Nickel-Strunz Grouping):

- +
9.AJ.05Grandidierite
(Mg,Fe
2+
 
)(Al,Fe
3+
 
)
 
3
(SiO
 
4
)(BO
 
3
)O
 
2
9.AJ.05Ominelite
(Fe
2+
 
,Mg)(Al,Fe
3+
 
)
 
3
(SiO
 
4
)(BO
 
3
)O
 
2
9.AJ.10Dumortierite
(Al,Fe
3+
 
)
 
7
(SiO
 
4
)
 
3
(BO
 
3
)O
 
3
9.AJ.10Holtite
(Ta
 
0.6
 
0.4
)Al
 
6
BSi
 
3
O
 
18
(O,OH)
 
2.25
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
(H
 
5
B
 
5
Si
 
3
O
 
20
)
9.AJ.20Datolite
Ca(HBSiO
 
5
)
9.AJ.20Gadolinite-(Y)
Y
 
2
Fe
2+
 
Be
 
2
Si
 
2
O
 
10
9.AJ.20Hingganite-(Ce)
(Ce,REE)
 
2
(□,Fe
2+
 
)Be
 
2
[SiO
 
4
]
 
2
(OH)
 
2
9.AJ.20Hingganite-(Y)
(Y,REE,Ca)
 
2
(□,Fe
2+
 
)Be
 
2
[SiO
 
4
]
 
2
(OH)
 
2
9.AJ.20Hingganite-(Yb)
(Yb,Y,REE)
 
2
□Be
 
2
[SiO
 
4
]
 
2
(OH)
 
2
9.AJ.20Homilite
Ca
 
2
(Fe
2+
 
,Mg)B
 
2
Si
 
2
O
 
10
9.AJ.20Melanocerite-(Ce)
(Ce,Ca)
 
5
(Si,B)
 
3
O
 
12
(OH,F) · nH
 
2
O
9.AJ.20Minasgeraisite-(Y)
CaBe
 
2
Y
 
2
Si
 
2
O
 
10
9.AJ.20Calcybeborosilite-(Y)
(Y,Ca)
 
2
(□,Fe
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)
Ca(Y,REE,Ca,Na,Mn)
 
15
Fe
2+
 
(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
(Si
 
2
O
 
7
)(OH)
 
2
14.3.3Beryllite
Be
 
3
(SiO
 
4
)(OH)
 
2
· H
 
2
O
14.3.4Liberite
Li
 
2
BeSiO
 
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
 
7
,HSi
 
2
O
 
7
)
14.3.10Semenovite-(Ce)
Na
 
8
Ca
 
2
FeBe
 
6
Ce
 
2
Si
 
14
O
 
40
(OH)
 
4
F
 
4
14.3.11Barylite
Be
 
2
Ba(Si
 
2
O
 
7
)
14.3.12Hingganite-(Ce)
(Ce,REE)
 
2
(□,Fe
2+
 
)Be
 
2
[SiO
 
4
]
 
2
(OH)
 
2
14.3.13Hingganite-(Yb)
(Yb,Y,REE)
 
2
□Be
 
2
[SiO
 
4
]
 
2
(OH)
 
2
14.3.14Hingganite-(Y)
(Y,REE,Ca)
 
2
(□,Fe
2+
 
)Be
 
2
[SiO
 
4
]
 
2
(OH)
 
2
14.3.15Minasgeraisite-(Y)
CaBe
 
2
Y
 
2
Si
 
2
O
 
10
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
(SiO
 
4
)
 
3
(OH)
14.3.22Joesmithite
{Pb}{Ca
 
2
}{Mg
 
3
Fe
3+
2
}(Be
 
2
Si
 
6
O
 
22
)(OH)
 
2
14.3.23Gadolinite-(Y)
Y
 
2
Fe
2+
 
Be
 
2
Si
 
2
O
 
10
14.3.25Calciogadolinite-(Y)
(YCa)
 
2
Fe
3+
 
Be
 
2
[SiO
 
4
]
 
2
O
 
2

Other Names for Gadolinite-(Ce)

Other Languages:
Russian:Гадолинит-(Ce)
Simplified Chinese:硅铍铈矿
Traditional Chinese:矽鈹鈰礦

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.

Best Localities for Gadolinite-(Ce)

Best of Species:Gadolinite-(Ce)

Internet Links for Gadolinite-(Ce)

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Gadolinite-(Ce) details from Handbook of Mineralogy (PDF)
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    Localities for Gadolinite-(Ce)

    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.
    Austria
     
    • Salzburg
      • Hohe Tauern
        • Gastein valley
          • Böckstein
    Wittern A., Taschenbuch der Mineralienfundstellen Mitteleuropas, Österreich, 1994, S.22
        • Habach Valley
          • Nasenkopf
            • Leckbachgraben (Leckbachrinne)
    R. Exel: Die Mineralien und Erzlagerstätten Österreichs (1993)
    Germany
     
    • Lower Saxony
      • Harz
        • Bad Harzburg
          • Radau valley
    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
    Grill, E. (1935): I minerali del granito di Baveno, la fayalite. Periodico di Mineralogia, 129-133. - Gallitelli, P. (1936): Le miche del granito di Baveno. . Periodico di Mineralogia, 61-76 - Pagliani, G. (1948): Le Zeoliti del granito di Baveno. Periodico di Mineralogia, 175-188. - Ravagnani, D. (1974): I giacimenti uraniferi italiani - Gruppo Mineralogico Lombardo - Museo Civico di Storia Naturale di Milano, Ed., Milano, 188 pp. - min. Rec. 14 (3), 157-168 - Am. Min. 83, 1330-1334 (1998) - Am. Min. 84, 782-789 (1999). - Guastoni, A. & Pezzotta, F. (2004): Kristiansenite a Baveno, second ritrovamento Mondiale della specie. Rivista Mineralogica Italiana, 4/2004, 247-251. - Guastoni, A., Demartin, F., Pezzotta, F. (2004): Sekaninaite delle pegmatiti granitiche di Feriolo e Baveno (VB). Atti della Società Italiana di Scienze Naturali e del Museo Civico di Storia Naturale di Milano, 145, 59-68. - Mineralogist americano (2005) 90, 1442-1452.
    American Mineralogist, 84(5-6), 782-789
    • Trentino-Alto Adige
      • Bolzano Province (South Tyrol)
        • Vizze Valley (Pfitsch Valley)
          • San Giacomo
            • Vizze pass (Pfitsch pass)
    Folie, K., P. Gentile, M. Hanke & I. Rocchetti (2010): Mineralien aus der Umgebung des Pfitscher Jochs in Südtirol (II). Mineralien-Welt 21 (4), 42-67.
    Japan
     
    • Honshu Island
      • Chubu Region
        • Gifu Prefecture
          • Nakatsugawa City
            • Hirukawa
    IMA-CNMMN approval, 2004-04
    Norway
     
    • Telemark
      • Porsgrunn
        • Bjørkedalen
    Segalstad, T. V. & Larsen, A. O. (1978): Gadolinite-(Ce) from Skien, southwestern Oslo Region, Norway. American Mineralogist 63, 188-195
    Knut Eldjarn
        • Langangen
          • Kokkersvold E18 roadcuts
    Raade, G., Åmli, R., Mladeck, H., Din. V. K., Larsen, A.O. & Åsheim, A. (1983): Chiavennite from syenite pegmatites in the Oslo Region, Norway. American Mineralogist. 68: 628-633
        • Mørje
    Larsen, A. O. (ed.) (2010): The Langesundsfjord. History, geology, pegmatites, minerals. Bode Verlag Gmbh, Salzhemmendorf, Germany, 240 p
    • Vestfold
      • Larvik
        • Hedrum
          • Lågendalen
    Larsen, A. O., Raade, G. & Sæbø, P. C. (1992): Lorenzenite from the Bratthagen nepheline syenite pegmatites, Lågendalen, Oslo Region, Norway. Norsk Geologisk Tidsskrift, 72, 381-384.
        • Malerød
    Andresen, P. (2011): Mineralene fra Midtfjellet larvikittbrudd, Malerød, Larvik. Norsk Bergverksmuseum Skrift. 46: 41-47
    Larsen, A. O. (ed.) (2010): The Langesundsfjord. History, geology, pegmatites, minerals. Bode Verlag Gmbh, Salzhemmendorf, Germany, 240 p
        • 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
    Svein A. Berge collection
          • 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.
    Andersen, F., Berge, S.A. & Burvald, I. (1996): Die Mineralien des Langesundsfjords und des umgebenden Larvikit-Gebietes, Oslo-Region, Norwegen. Mineralien-Welt 7 (4), 21-100
    Engvoldsen,T.,Andersen, F.,Berge, S.A. & Burvald, I. (1991): Pegmatittmineraler fra Larvik ringkompleks. STEIN 18(1),15-71
    Andresen, P. (2013): Gedigent bly og andre spennende mineraler fra en unik pegmatitt i Tvedalen. Norsk Bergverksmuseum Skrifter. 50, 83-87
    Engvoldsen,T.,Andersen, F.,Berge, S.A. & Burvald, I. (1991): Pegmatittmineraler fra Larvik ringkompleks. STEIN 18(1),15-71
    Pakistan
     
    • Khyber Pakhtunkhwa (North-West Frontier Province)
      • Peshawar
        • Hameed Abad Kafoor Dheri
    RUFF
    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;Holtstam, D., Andersson, U.B. (2007): The REE minerals of the Bastnäs-type deposits, South-Central Sweden. Canadian Mineralogist. 45, 1073-1114
        • Röberg ore field
    Nysten,P. & Gustafsson, L.(2006): I jakt på sällsynta mineral. Geologiskt forum nr 49, 22-25
      • Skinnskatteberg
        • Riddarhyttan
    Öhman, L. , Nysten, P. and Langhof, J. (2005): Nya Bastnäs i Riddarhytte malmfält. Litiofilen, 22 (1): 14-38; Holtstam, D., Andersson, U.B. (2007): The REE minerals of the Bastnäs-type deposits, South-Central Sweden. Canadian Mineralogist. 45, 1073-1114
    USA
     
    • Colorado
      • Jefferson Co.
        • Clear Creek pegmatite Province
    Minerals of Colorado (1997) Eckels, E. B.; USGS Prof. Paper 227
        • 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
    Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
    • 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.
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