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Yttrialite-(Y)

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Formula:
(Y,Th)
 
2
Si
 
2
O
 
7
Colour:Olive-green, brown to ...
Name:Named after its chemical composition containing yttrium.
NOTE: not to be confused with Yttriaite-(Y)

Classification of Yttrialite-(Y)

IMA status:Approved
Strunz 8th edition ID:8/C.01-40
Nickel-Strunz 10th (pending) edition ID:9.BC.05

9 : SILICATES (Germanates)
B : Sorosilicates
C : Si2O7 groups, without non-tetrahedral anions; cations in octahedral [6] and greater coordination
Dana 8th edition ID:55.2.1b.3

55 : SOROSILICATES Si2O7 Groups,Generally with no Additional Anions
2 : Si2O7 Groups, Generally with no Additional Anions with cations in [6] coordination
Hey's CIM Ref.:14.11.5

14 : Silicates not Containing Aluminum
11 : Silicates of Th and Hg
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Type Occurrence of Yttrialite-(Y)

Type Locality:Baringer Hill (Barringer Hill), Bluffton, Llano Co., Texas, USA

Physical Properties of Yttrialite-(Y)

Lustre:Greasy
Colour:Olive-green, brown to black; often with an orange-yellow crust

Chemical Properties of Yttrialite-(Y)

Formula:
(Y,Th)
 
2
Si
 
2
O
 
7
Simplified for copy/paste:(Y,Th)2Si2O7
Essential elements:O, Si, Y
All elements listed in formula:O, Si, Th, Y

Relationship of Yttrialite-(Y) to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
9.BC.05Gittinsite
CaZrSi
 
2
O
 
7
9.BC.05Keiviite-(Y)
(Y,Yb)
 
2
[Si
 
2
O
 
7
]
9.BC.05Keiviite-(Yb)
(Yb,Y)
 
2
Si
 
2
O
 
7
9.BC.05Thortveitite
(Sc,Y)
 
2
Si
 
2
O
 
7
9.BC.10Keldyshite
(Na,H)
 
2
ZrSi
 
2
O
 
7
9.BC.10Khibinskite
K
 
2
ZrSi
 
2
O
 
7
9.BC.10Parakeldyshite
Na
 
2
ZrSi
 
2
O
 
7
9.BC.15Rankinite
Ca
 
3
Si
 
2
O
 
7
9.BC.20Barysilite
Pb
 
8
Mn
2+
 
[Si
 
2
O
 
7
]
 
3
9.BC.25Edgarbaileyite
(Hg-Hg)
 
3
Si
 
2
O
 
7
9.BC.30Kristiansenite
Ca
 
2
ScSn(Si
 
2
O
 
7
)(Si
 
2
O
 
6
OH)
9.BC.35Percleveite-(Ce)
(Ce,La,Nd)
 
2
Si
 
2
O
 
7
Related Minerals - Hey's Index Grouping:

- +
14.11.1Thorite
(Th,U)SiO
 
4
14.11.2Huttonite
ThSiO
 
4
14.11.3Umbozerite
Na
 
3
Sr
 
4
Th[Si(O,OH)
 
3-4
]
 
8
14.11.4Thornasite
(Na,K)
 
12
Th
 
3
[Si
 
8
O
 
19
]
 
4
· 18H
 
2
O
14.11.6Edgarbaileyite
(Hg-Hg)
 
3
Si
 
2
O
 
7

Other Names for Yttrialite-(Y)

Other Languages:
German:Yttrialith-(Y)
Russian:Иттриалит-(Y)
Simplified Chinese:硅钍钇矿

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 Yttrialite-(Y)

Reference List:

- +
American Journal of Science (1889): 138: 477.

Soviet Physics – Crystallography (1971): 16: 786.

American Mineralogist (1973): 58: 545.

Internet Links for Yttrialite-(Y)

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

    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.
    Finland
     
    • Northern Finland Region
      • Pyhäntä
    Al Ani and Torppa Akseli 2011. REE-Nb mineralogy in Katajakangas and Lamujärvi alkaline rocks, Central Finland.
    • Western and Inner Finland Region
      • Kangasala
    Pavel M. Kartashov analythical data (2014), Jyrki Autio specimen
    Japan
     
    • Honshu Island
      • Tohoku Region
        • Fukushima Prefecture
          • Kawamata
    Handbook of Mineralogy
            • Iizaka Village (Iisaka)
    Sueno, S., Matsuura, S., Bunno, M., & Kurosawa, M. (2002). Occurrence and crystal chemical features of protoferro-anthophyllite and protomangano-ferro-anthophyllite from Cheyenne Canyon and Cheyenne Mountain, USA and Hirukawa-mura, Suisho-yama, and Yokone-yama, Japan. Journal of mineralogical and petrological sciences, 97(4), 127-136.
    • Shikoku Island
      • Ehime prefecture
        • Matsuyama City
    Kato, A. (1973) Sakurai Koubutsu Hyohon, 57. (Kinichi Sakurai collection)
      • Kagawa Prefecture
        • Takamatsu
    Bernard & Hyrsl (2004) Minerals and their localities.
    Mongolia
     
    • Hovd Aimag (Khovd Aimag)
      • Altai Mts
    Pavel M. Kartashov analytical data
    New Caledonia
     
    • Northern Province
      • Ouégoa Commune
    Spandler, C.; Hermann, J. and Rubatto, R. (2004) : Exsolution of thortveitite, yttrialite, and xenotime during low-temperature recrystallization of zircon from New Caledonia, and their significance for trace element incorporation in zircon. American Mineralogist 89: 1795-1806
    Norway
     
    • Aust-Agder
      • Evje og Hornnes
    Nilssen, B. (1971): Yttrialite from Ivedal, Iveland, South Norway. Norsk Geologisk Tidsskrift 51, 1-8
      • Iveland
        • Ivedal
    Nilssen, B. (1971): Yttrialite from Ivedal, Iveland, South Norway. Norsk Geologisk Tidsskrift 51, 1-8
    • Nordland
      • Rana
    Grauch et al. (1994): Høgtuvaite, a new beryllian member of the aenigmatite group fom Norway, with x-ray data on aenigmatite. Canadian Mineralogist. 32: 439-448.
      • Tysfjord
    Husdal, T. (2008): The minerals of the pegmatites within the Tysfjord granite, northern Norway. Norsk Bergverksmuseum, skrift 38, 5-28.
    Russia
     
    • Eastern-Siberian Region
      • Sakha Republic (Saha Republic; Yakutia)
        • Polar Yakutia
          • Cherskii range system
            • Selennyakh range
              • Tommot river
    no reference
    Sweden
     
    • Dalarna
      • Borlänge
        • St Tuna
    Bertil Otter photo
    Mike Scott S103050 fm Cureton #DZE from Geomar 1998
    USA
     
    • Texas
      • Burnet Co.
    [MinRec 8:90]
      • Llano Co.
        • Bluffton
    Dana 6; Canadian Mineralogist (1961): 6: 576-581.; Am Min (1932) Volume 17, pages 381-390,
    R&M 66:3 pp 196-224; American Mineralogist, Volume 58, pages 545-547, 1973
    Minerals of Virginia 1990 by R. V. Dietrich
      • Bedford Co.
        • Moneta-Forest
    Minerals of Virginia, 1990 by R. V. Dietrich
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    Copyright © Jolyon Ralph and Ida Chau 1993-2014. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. 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 thousands 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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