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Hiortdahlite II

Formula:
(Na,Ca)
 
4
Ca
 
8
Zr
 
2
(Y,Zr,REE,Na)
 
2
(Si
 
2
O
 
7
)
 
4
(O
 
3
F
 
5
)
Name:For relation to Hiortdahlite I.
Isostructural with:Wöhlerite Group


See also Hiortdahlite and Hiortdahlite I.

Hiortdahlite II (never submitted to IMA) is crystallographically close to Hiortdahlite I.

Originally reported from Kipawa alkaline complex, Sheffield Lake, Villedieu Township, Témiscamingue Co., Québec, Canada.

Classification of Hiortdahlite II

IMA status:Published without Approval
mindat.org URL:http://www.mindat.org/min-5629.html
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Chemical Properties of Hiortdahlite II

Formula:
(Na,Ca)
 
4
Ca
 
8
Zr
 
2
(Y,Zr,REE,Na)
 
2
(Si
 
2
O
 
7
)
 
4
(O
 
3
F
 
5
)
Essential elements:Ca, F, Na, O, Si, Y, Zr
All elements listed in formula:Ca, F, Na, O, Si, Y, Zr

Other Names for Hiortdahlite II

Other Languages:
Russian:Йортдалит II

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 Hiortdahlite II

Reference List:Merlino S. & Perchiazzi N.(1987): The crystal structure of hiortdahlite II. Mineralogy and Petrology (TMPM): 37, 25-35.

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    Localities for Hiortdahlite II

    Hide Locality List
    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.
    Canada
     
    • Québec
      • Abitibi-Témiscamingue
        • Témiscamingue RCM
          • Les Lacs-du-Témiscamingue
    		Merlino & Perchiazzi (1985 and 1988).
    Greenland
     
    • Kitaa (West Greenland) Province
      • Narsaq
        • Ilimaussaq complex
          • Tunugdliarfik Firth (Eriksfjord)
            • Tuperssuatsiat Bay
    		Robles, E., Fontan, F., Monchoux, P., Soerensen, H. (2001): Hiortdahlite II from the Ilimaussaq alkaline complex, South Greenland, South Greenland, Geology of Greenland Survey Bulletin, 190, 131-137
    Mineral and/or Locality
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    Copyright © Jolyon Ralph and Ida Chau 1993-2009. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the 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 hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 8th Nov 2009 20:08:47