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Olive-green, brown to ...
Named after its chemical composition containing yttrium.
NOTE: not to be confused with Yttriaite-(Y)

Classification of Yttrialite-(Y)


9 : SILICATES (Germanates)
B : Sorosilicates
C : Si2O7 groups, without non-tetrahedral anions; cations in octahedral [6] and greater coordination

55 : SOROSILICATES Si2O7 Groups,Generally with no Additional Anions
2 : Si2O7 Groups, Generally with no Additional Anions with cations in [6] coordination

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

Physical Properties of Yttrialite-(Y)

Olive-green, brown to black; often with an orange-yellow crust

Chemical Properties of Yttrialite-(Y)

Essential elements:
All elements listed in formula:

Relationship of Yttrialite-(Y) to other Species

14.11.4Thornasite(Na,K)12Th3[Si8O19]4 · 18H2O

Other Names for Yttrialite-(Y)

Name in Other Languages:
Simplified Chinese:硅钍钇矿

Other Information

Health Risks:
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)

Localities for Yttrialite-(Y)

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 for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? 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.
  • 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
  • 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.
  • 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
  • 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
Nilssen, B. (1968): [no title]. in Geologisk Museum. Interne notater 1961-1990. Published by Geologisk Museums Venner, Oslo 1991, p 20.
  • 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.
  • Telemark
Nilssen, B. (1965): 4.1.1965. in Geologisk Museum. Interne notater 1961-1990. Published by Geologisk Museums Venner, Oslo 1991, p 14
  • Eastern-Siberian Region
    • Sakha Republic (Saha Republic; Yakutia)
      • Polar Yakutia
        • Cherskii range system
          • Selennyakh range
            • Tommot river
no reference
  • Dalarna
    • Borlänge
      • St Tuna
Bertil Otter photo
Mike Scott S103050 fm Cureton #DZE from Geomar 1998
  • 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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