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Yttrocerite

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Formula:
(Ca,Y,Ce)F
 
2+x
System:IsometricColour:Blue, reddish
Lustre:VitreousHardness:4 - 5
Name:Named from its chemical composition containing yttrium (named after Ytterby, Sweden) and cerium (named after the asteroid Ceres).
A variety of Fluorite

Y-rich fluorite (see also yttrofluorite). Note: A great many occurrences of yttrocerite reported in the nineteenth century were false. The so-called "yttrocerite" has repeatedly been shown to be ordinary purple fluorite without enrichment of rare earth elements.

Classification of Yttrocerite

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Physical Properties of Yttrocerite

Lustre:Vitreous
Colour:Blue, reddish
Streak:White
Hardness (Mohs):4 - 5

Crystallography of Yttrocerite

Crystal System:Isometric

Optical Data of Yttrocerite

Type:Isotropic

Chemical Properties of Yttrocerite

Formula:
(Ca,Y,Ce)F
 
2+x
Simplified for copy/paste:(Ca,Y,Ce)F2+x
Essential elements:Ca, F
All elements listed in formula:Ca, Ce, F, Y

Other Names for Yttrocerite

Synonyms:
Yttrocererite
Other Languages:
French:Yttria fluatée
German:Yttrocerit
Spanish:Yttrocerita

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 Yttrocerite

Reference List:

- +
Gahn and Berzelius (1814) Afhandlingar I Fysik, Kemi och Mineralogi, Stockholm:4: 151.

Palache, Charles, Harry Berman & Clifford Frondel (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Volume II: Halides, Nitrates, Borates, Carbonates, Sulfates, Phosphates, Arsenates, Tungstates, Molybdates, Etc. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged: 29.

Internet Links for Yttrocerite

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  • Localities for Yttrocerite

    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.
    Norway
     
    • Nordland
      • Tysfjord
    Sverdrup, T. L. (1968): Contributions to the Mineralogy of Norway No. 37. Yttrofluorite-yttrocerite-cerfluorite in norwegian pegmatites. Norsk Geologisk Tidsskrift 48: 245-252
    Sweden
     
    • Dalarna
      • Falun
    Geologiska Föeningens I Stockholm. Förhandlinger, Stockholm: 1, 119.
    No reference listed
    GFF 1, 119
    USA
     
    • Alaska
      • North Slope Borough
        • Canning District
    U.S. Geological Survey, 2008, Alaska Resource Data File (ARDF): U.S. Geological Survey Open-File Report 2008-1225.
    • Colorado
      • Douglas Co.
        • Devils Head Pegmatite District
    Meeves, H., et al (1966), Reconnaissance of beryllium-bearing pegmatite deposits in six western states, US Bur. Mines Info. Circ. 8298: 24 (Table A-1).
    Meeves, H., et al (1966), Reconnaissance of beryllium-bearing pegmatite deposits in six western states, US Bur. Mines Info. Circ. 8298: 25 (Table A-1).
    Meeves, H., et al (1966), Reconnaissance of beryllium-bearing pegmatite deposits in six western states, US Bur. Mines Info. Circ. 8298: 25 (Table A-1).
      • Jefferson Co.
        • South Platte Pegmatite District
    Meeves, H., et al (1966), Reconnaissance of beryllium-bearing pegmatite deposits in six western states, US Bur. Mines Info. Circ. 8298: 27 (Table A-1).
    • Massachusetts
      • Essex Co.
    Gleba, 1978. Massachusetts Mineral & Fossil Localities
    McKinstry, H. E. (1921): The Minerals of Rockport, Massachusetts (American Mineralogist 6:56-60).
    Sears, J. H.(1905): The Physical Geography, Geology, Mineralogy and Paleontology of Essex County.
      • Worcester Co.
        • Bolton
    Hitchcock, Edward (1835). Report on the Geology, Mineralogy, Botany, and Zoology of Massachusetts, pp. 308-311.
    • New York
      • Orange Co.
        • Town of Warwick
    The Minerals of New York City & Its Environs, New York Mineralogical Club Bull., Vol. 3, No. 1, Manchester, J.G. (1931): 71.
    • North Carolina
      • Yancey Co.
        • Spruce Pine District
          • Burnsville
            • Hurricane Mountain
    "Mineralogy of the Ray Mica Mine" by J.W. Miller and C.W. Allen, Genth,F.A and Kerr,W.C.,1885,The minerals and mineral localities of North Carolina:pp.127
    • Texas
      • Hudspeth Co.
        • Sierra Blanca Peaks
    Am Min 72:1122-1130
    Am Min 72:1122-1130
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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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