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Yttrialite-(Y)

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About Yttrialite-(Y)Hide

Formula:
(Y,Th)2Si2O7
Colour:
Olive-green, brown to black; often with an orange-yellow crust
Lustre:
Vitreous, Greasy, Dull
Hardness:
5 - 5½
Specific Gravity:
4.56 - 4.58
Crystal System:
Monoclinic
Name:
Named after its chemical composition containing yttrium.
NOTE: not to be confused with Yttriaite-(Y)
This page provides mineralogical data about Yttrialite-(Y).


Classification of Yttrialite-(Y)Hide

Approved, 'Grandfathered' (first described prior to 1959)
9.BC.05

9 : SILICATES (Germanates)
B : Sorosilicates
C : Si2O7 groups, without non-tetrahedral anions; cations in octahedral [6] and greater coordination
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
14.11.5

14 : Silicates not Containing Aluminum
11 : Silicates of Th and Hg

Physical Properties of Yttrialite-(Y)Hide

Vitreous, Greasy, Dull
Transparency:
Translucent, Opaque
Colour:
Olive-green, brown to black; often with an orange-yellow crust
Hardness:
5 - 5½ on Mohs scale
Cleavage:
Distinct/Good
platy
Density:
4.56 - 4.58 g/cm3 (Measured)    4.0 g/cm3 (Calculated)

Chemical Properties of Yttrialite-(Y)Hide

Formula:
(Y,Th)2Si2O7
IMA Formula:
Y2Si2O7

Chemical AnalysisHide

Oxide wt%:
 1
SiO228.70 %
Fe2O31.18 %
MnO0.48 %
MgO0.15 %
CaO0.93 %
UO22.59 %
ThO26.97 %
Y2O331.37 %
La2O30.14 %
Ce2O30.66 %
Pr2O30.15 %
Nd2O31.09 %
Sm2O31.17 %
Eu2O30.05 %
Gd2O32.44 %
Tb2O30.61 %
Dy2O35.35 %
Ho2O31.00 %
Er2O33.69 %
Tm2O30.75 %
Yb2O35.58 %
Lu2O31.45 %
H2O3.68 %
Total:100.18 %
Sample references:
IDLocalityReference
1Ivedal 1 Feldspar Prospect, Ivedal, Iveland, Agder, NorwayNilssen, B. (1971): Yttrialite from Ivedal, Iveland, South Norway. Norsk Geologisk Tidsskrift 51: 1-8

Crystallography of Yttrialite-(Y)Hide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/m
Setting:
P21/m
Cell Parameters:
a = 7.50 Å, b = 8.06 Å, c = 5.02 Å
α = 112.00°
Ratio:
a:b:c = 0.931 : 1 : 0.623
Unit Cell V:
0.00 ų (Calculated from Unit Cell)
Z:
2
Comment:
commonly metamict.

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0014180Yttrialite-(Y)Batalieva N G, Pyatenko Yu A (1971) Artificial yttrialite (gamma-phase) - a representative of a new structure type in the rare earth diorthosilicate series Kristallografiya 16 905-91019710293
CIF Raw Data - click here to close

Type Occurrence of Yttrialite-(Y)Hide

Other Language Names for Yttrialite-(Y)Hide

Simplified Chinese:硅钍钇矿

Relationship of Yttrialite-(Y) to other SpeciesHide

Other Members of this group:
Keiviite-(Y)Y2Si2O7Mon. 2/m : B2/m
Keiviite-(Yb)Yb2Si2O7Mon. 2/m : B2/m
ThortveititeSc2Si2O7Mon.

Common AssociatesHide

Associated Minerals Based on Photo Data:
4 photos of Yttrialite-(Y) associated with Keiviite-(Y)Y2Si2O7
3 photos of Yttrialite-(Y) associated with Tengerite-(Y)Y2(CO3)3 · 2-3H2O
1 photo of Yttrialite-(Y) associated with Kamphaugite-(Y)Ca(Y,REE)(CO3)2(OH) · H2O
1 photo of Yttrialite-(Y) associated with ElpiditeNa2ZrSi6O15 · 3H2O
1 photo of Yttrialite-(Y) associated with Keiviite-(Y)-Keiviite-(Yb) Series

Related Minerals - Nickel-Strunz GroupingHide

9.BC.05GittinsiteCaZrSi2O7Mon.
9.BC.05Keiviite-(Y)Y2Si2O7Mon. 2/m : B2/m
9.BC.05Keiviite-(Yb)Yb2Si2O7Mon. 2/m : B2/m
9.BC.05ThortveititeSc2Si2O7Mon.
9.BC.10Keldyshite(Na,H)2ZrSi2O7Tric. 1 : P1
9.BC.10KhibinskiteK2ZrSi2O7Mon.
9.BC.10ParakeldyshiteNa2ZrSi2O7Tric.
9.BC.15RankiniteCa3Si2O7Mon. 2/m : P21/b
9.BC.20BarysilitePb8Mn2+[Si2O7]3Trig.
9.BC.25Edgarbaileyite[Hg2]2+3[Si2O7]Mon.
9.BC.30KristianseniteCa2ScSn(Si2O7)(Si2O6OH)Tric. 1
9.BC.35Percleveite-(Ce)(Ce,La,Nd)2Si2O7Tet. 4

Related Minerals - Dana Grouping (8th Ed.)Hide

55.2.1b.1Rowlandite-(Y)(Y,Ce)4Fe2+(Si2O7)2F2 (?)Tric.
55.2.1b.2Thalénite-(Y)Y3Si3O10FMon.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

14.11.1ThoriteTh(SiO4)Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
14.11.2HuttoniteThSiO4Mon.
14.11.3UmbozeriteNa3Sr4Th[Si(O,OH)3-4]8Amor.
14.11.4Thornasite(Na,K)12Th3[Si8O19]4 · 18H2OTrig. 3m : R3m
14.11.6Edgarbaileyite[Hg2]2+3[Si2O7]Mon.

Other InformationHide

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)Hide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Hidden W E, Mackintosh J B (1889) A description of several yttria and thoria minerals from Llano County, Texas. American Journal of Science 138, 474-486
Batalieva N G, Pyatenko Y A (1972) Artificial yttrialite ("γ-phase") - a representative of a new structure type in the rare earth diorthosilicate series. Soviet Physics - Crystallography 16, 786-789
American Mineralogist (1973): 58: 545.

Internet Links for Yttrialite-(Y)Hide

Localities for Yttrialite-(Y)Hide

This 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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Brazil
 
  • Rio de Janeiro
    • Itatiaia
elluso, L., Guarino, V., Lustrino, M., Morra, V., De' Gennaro, R. (2016): The REE- and HFSE-bearing phases in the Itatiaia Alkaline Complex (Brazil), and geochemical evolution of feldspar-rich felsic melts. Mineralogical Magazine: 80: (in press); http://forum.amiminerals.it/viewtopic.php?f=5&t=12839&sid=298fa3a883df3b6a74caf0dae5778cc7 (2016)
Czech Republic
 
  • Vysočina Region
    • Třebíč District
      • Třebíč Area
        • Kožichovice
Evans, R. J., Gołębiowska, B., Groat, L. A., & Pieczka, A. (2018). Crystal Structure of Kristiansenite from Szklarska Poręba, Southwestern Poland. Minerals, 8(12), 584.
Finland
 
  • North Ostrobothnia
    • Pyhäntä
Al Ani and Torppa Akseli 2011. REE-Nb mineralogy in Katajakangas and Lamujärvi alkaline rocks, Central Finland.
  • Pirkanmaa
    • Valkeakoski
Pavel M. Kartashov analythical data (2014), Jyrki Autio specimen
  • Southwest Finland
    • Kimitoön (Kemiönsaari)
      • Kimitoön Island
Jyrki Autio Collection. Pavel M. Kartashov analytical data.
France
 
  • 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
Greece
 
  • Central Macedonia
    • Kilkis
https://www.researchgate.net/profile/Anestis_Filippidis/publication/281551528_Chemical_X-ray_and_Mossbauer_investigation_of_a_turquoise_from_the_Vathi_area_volcanic_rocks_Macedonia_Greece/links/55ed72c708aeb6516268df0f/Chemical-X-ray-and-Mossbauer-investigation-of-a-turquoise-from-the-Vathi-area-volcanic-rocks-Macedonia-Greece.pdf?origin=publication_list Chemical, X-Ray and Mössbauer investigation of a turquoise from the Vathi area volcanic rocks, Macedonia, Greece. S. Sklavounos, T. Ericcson, A. Filippidis, K. Michailidis, C. Kougoulis
Japan
 
  • Ehime prefecture
    • Matsuyama City
Kato, A. (1973) Sakurai Koubutsu Hyohon, 57. (Kinichi Sakurai collection)
  • Fukushima Prefecture
    • Date District
      • Kawamata
Handbook of Mineralogy; Yamada, S. (2004) Nihonsan-koubutsu Gojuon-hairetsu Sanchi-ichiranhyou (111 pp.)
        • 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.
  • Kagawa Prefecture
    • Takamatsu
Bernard & Hyrsl (2004) Minerals and their localities.
Mongolia
 
  • Khovd Province
    • Myangad District
Pavel M. Kartashov analytical data
Norway
 
  • 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.
Stensrud, S. (2009): De opptredende mineraler på granittpegmatittganger i Iveland og Evje. Unpublished paper based on 4 previous papers written together with Johan Løchen.
  • Nordland
    • Narvik
Husdal, T. (2008): The minerals of the pegmatites within the Tysfjord granite, northern Norway. Norsk Bergverksmuseum, skrift 38, 5-28.
    • Rana
      • Høgtuva
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.
  • Telemark
Nilssen, B. (1965): 4.1.1965. in Geologisk Museum. Interne notater 1961-1990. Published by Geologisk Museums Venner, Oslo 1991, p 14
Poland
 
  • Lower Silesian Voivodeship
    • Jelenia Góra County
      • Szklarska Poręba
        • Szklarska Poręba-Huta
Mochnacka, K., Oberc-Dziedzic, T., Mayer, W., & Pieczka, A. (2015). Ore mineralization related to geological evolution of the Karkonosze–Izera Massif (the Sudetes, Poland)—Towards a model. Ore Geology Reviews, 64, 215-238.
Romania
 
  • Harghita
Hirtopanu, P. (2006). One hundred minerals for one hundred years (dedicated to the Centennial of the Geological Institute of Romania). In 3rd Conference on Mineral Sciences in the Carpathians, Miskolc Hungary. Acta Mineralogica–Petrographica, Abstract series (Vol. 5, p. 86).
Russia
 
  • Sakha Republic (Yakutia)
    • Polar Yakutia
      • Cherskii range system
        • Selennyakh range
          • Tommot river
no reference
Sweden
 
  • Dalarna County
    • Borlänge
      • Stora Tuna
Natural History Museum, Stockholm collection # 20150134
Mike Scott S103050 fm Cureton #DZE from Geomar 1998
USA
 
  • Texas
    • Burnet Co.
Crook, Wilson W. III (1977) Texasite, a new mineral: the first example of a differentiated rare-earth species. American Mineralogist: 62: 1006-1008.; Crook, Wilson W. III (1977) The Clear Creek pegmatite: a rare earth pegmatite in Burnett County, Texas. Mineralogical Record, 8 (2): 88-90.
    • Llano Co.
      • Bluffton
Dana 6; Frondel, C. (1961) Two yttrium minerals; spencite and rowlandite. The Canadian Mineralogist: 6: 576-581.; Landes, K.K. (1932) The Barringer Hill, Texas, pegmatite. The American Mineralogist: 17(8): 381-390.
Ewing, R.C. & Ehlmann, A.J. (1973) Yttrialite and uraninite, additional minerals from the Rode Ranch pegmatite, Central Mineral Region, Texas. American Mineralogist 58: 545-547.; R&M 66:3 pp. 196-224.
Minerals of Virginia 1990 by R. V. Dietrich
    • Bedford Co.
      • Moneta-Forest
Minerals of Virginia, 1990 by R. V. Dietrich
 
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