Help mindat.org|Log In|Register|
Home PageMindat NewsThe Mindat ManualHistory of MindatCopyright StatusManagement TeamContact UsAdvertise on Mindat
Donate to MindatSponsor a PageSponsored PagesTop Available PagesMindat AdvertisersAdvertise on MindatThe Mindat Store
Minerals by PropertiesMinerals by ChemistryRandom MineralSearch by minIDLocalities Near MeSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
StatisticsThe ElementsMember ListBooks & MagazinesMineral Shows & EventsThe Mindat DirectoryHow to Link to MindatDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery

Gadolinite Group

This page is currently not sponsored. Click here to sponsor this page.
Name:
The group has its name after the generic name gadolinite.
The Gadolinite Group of the Gadolinite Supergroup is defined on the basis of the tetrahedral cation Si 4+. It is, according to the new classification established by IMA in 2016 (IMA 16-A), divided into two subgroups: the Gadolinite Subgroup and the Datolite Subgroup.

Members of the gadolinite group (sensu stricto) were, before the new classification, classified in the litterature as belonging to the gadolinite group (sensu lacto), the datolite group or the datolite-gadolinite group (also spelled the gadolinite-datolite group).



Classification of Gadolinite Group

Approved
Notes:
Group Name
Approval History:
Redefined as a group of the Gadolinite Supergroup by IMA in aug. 2016 (Proposal 16-A).

Gadolinite Group in petrology

Accessory component of (items highlighted in red)

Relationship of Gadolinite Group to other Species

Other Members of Group:
Herderite GroupThe Herderite Group of the Gadolinite Supergroup is defined on the basis of the tetrahedral cation ...
Group Members:
Datolite Subgroup 
  Datolite Ca(HBSiO5)
  Homilite Ca2(Fe2+,Mg)B2Si2O10
Gadolinite Subgroup 
  Calcybeborosilite-(Y) (Y,Ca)2(□,Fe2+)(B,Be)2[SiO4]2(OH,O)2
  Gadolinite-(Ce) (Ce,La,Nd,Y)2Fe2+Be2Si2O10
  Gadolinite-(Nd) Nd2Fe2+Be2O2(SiO4)2
  Gadolinite-(Y) Y2Fe2+Be2Si2O10
  Hingganite-(Ce) (Ce,REE)2(□,Fe2+)Be2[SiO4]2(OH)2
  Hingganite-(Y) (Y,REE,Ca)2(□,Fe2+)Be2[SiO4]2(OH)2
  Hingganite-(Yb) (Yb,Y,REE)2□Be2[SiO4]2(OH)2
  Minasgeraisite-(Y) CaBe2Y2Si2O10

Other Names for Gadolinite Group

Name in Other Languages:

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 Gadolinite Group

Reference List:
CNMNC Newsletter No. 33, October 2016, page 1143; Mineralogical Magazine: 80: 1135–1144

DeMartin, F., Pilati, T., Diella, V., Gentile, P. & Gramaccioli, C. M. (1993): A crystal-chemical investigation of Alpine gadolinite. Can. Mineral. 31, 127-136.

Demartin, F., Minaglia, A. & Gramaccioli, C. M. (2001): Characterization of gadolinite-group minerals using crystallographic data only: the case of hingganite-(Y) from Cuasso al Monte, Italy. Canadian Mineralogist 39, 1105-1114.

Kolitsch, U., Brandstätter, F. & Blass, G. (2008): Baryt, Bismuthinit, Brannerit, Cobaltit, Coelestin, Glieder der Gadolinitgruppe, Galenit, Krupkait, "inkommensurabel modulierter Krupkait", Prehnit, ein Smektitmineral, Stellerit und Strontianit aus den Deponien des Kraftwerkbaues im hinteren Gasteinertal (Sportgastein), Salzburg. Pp. 250-252 in: Niedermayr, G. et al. (2008): Neue Mineralfunde aus Österreich LVII. Carinthia II, 198./118., 223-274 (in German).

Pršek, J., Ondrejka, M., Baéik, P., Budzyń, B., Uher, P. (2010): Metamorphic-hydrothermal REE mineralization in the Bacúch magnetite deposit, western Carpathians, Slovakia: Sr,S-rich monazite-(Ce) and Nd-dominant hingganite. Canadian Mineralogist, 48, 81-94.

Internet Links for Gadolinite Group

mindat.org URL:
http://www.mindat.org/min-32181.html
Please feel free to link to this page.

Localities for Gadolinite Group

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.
Mineral and/or Locality  
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2016, except where stated. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: December 6, 2016 19:53:32 Page generated: November 25, 2016 08:09:37
Go to top of page