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Caldasite

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Name:
Named for the locality, the Poços de Caldas massif.
A Mixture Of:
The so-called Caldasite is an uraniferous zirconium ore, a mixture of Zircon (ZrSiO4) and Baddeleyite (ZrO2), with an average zirconium content higher than 60% ZrO2- and uranium content of 0.3 % U3O8 (Brown, 1972).

Originally described from Poços de Caldas massif.


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Synonyms of CaldasiteHide

Other Language Names for CaldasiteHide

Other InformationHide

Health Risks:
sometimes is low radioactive
Industrial Uses:
Zirconium ore and source of industrial baddeleyte

References for CaldasiteHide

Reference List:
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Derby, in Lee (1919), American Journal of Science: 47: 126.
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: 610.
Franco, R. R. & Loewenstein, W. (1948): Zirconium from the region of Poços de Caldas. Am. Mineral. 33, 142-151. [http://www.minsocam.org/ammin/AM33/AM33_142.pdf]
A.E.P. Brown (1972): PhD Thesis. University of Sao Paulo. [http://www.ipen.br/biblioteca/teses/00317.pdf]

Internet Links for CaldasiteHide

Localities for CaldasiteHide

ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Brazil
 
  • Minas Gerais
Derby, in Lee (1919), American Journal of Science: 47: 126; Franco, R. R. & Loewenstein, W. (1948): Zirconium from the region of Poços de Caldas. Am. Mineral. 33, 142-151. [http://www.minsocam.org/ammin/AM33/AM33_142.pdf]
      • Poços de Caldas
Horstpeter H. G. J. Ulbrich (1984) A Petrografia, a Estrutura e o Quimismo de Nefelina Sienitos do Maciço Alcalino de Poços de Caldas MG-SP
  • São Paulo
    • Águas da Prata
Franco, R. R. & Loewenstein, W. (1948): Zirconium from the region of Poços de Caldas. Am. Mineral. 33, 142-151. [http://www.minsocam.org/ammin/AM33/AM33_142.pdf]
Mineral and/or Locality  
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