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Risörite

Formula:
(Y,Er)(Nb,Ti,Ta)(O,OH)
 
4
Name:After the locality at Gryting, near Risör, Norway.
A variety of Fergusonite-(Y)

A titaniferous (up to 5 mas.% TiO2) variety of Fergusonite-(Y).

Classification of Risörite

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Chemical Properties of Risörite

Formula:
(Y,Er)(Nb,Ti,Ta)(O,OH)
 
4
Essential elements:Nb, O, Y
All elements listed in formula:Er, H, Nb, O, Ta, Ti, Y

Other Names for Risörite

Other Languages:
German:Risörit
Spanish:Risörita

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 Risörite

Reference List:Hauser (1907), Ber.: 40: 3118.

Hauser (1908), Zs. anorg. Chem.: 60: 230.

Palache, Charles, Harry Berman & Clifford Frondel (1944), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Volume I: Elements, Sulfides, Sulfosalts, Oxides. John Wiley and Sons, Inc., New York. 7th edition, revised and enlarged: 762.

Internet Links for Risörite

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    Localities for Risörite

    (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
     
    • Aust-Agder
      • Gjerstad
    		Hauser (1908); Barth (1927c); Neumann (1985, p. 83).
    Mineral and/or Locality
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