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Yttrocerite

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Formula:
(Ca,Y,Ce)F2+x
System:
Isometric
Colour:
Blue, reddish
Lustre:
Vitreous
Hardness:
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

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)F2+x
Essential elements:
All elements listed in formula:

Other Names for Yttrocerite

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 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

Localities for Yttrocerite

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.
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
Mineral and/or Locality  
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