X-ray diffraction data for two new calcium uranium (VI) hydrates

J. M.S. Skakle*, L. P. Moroni, F. P. Glasser

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


The X-ray powder diffraction patterns for two new synthetic calcium uranium (VI) silicate hydrate phases are reported. Ca1.5U6(OH)7O16·7H 2O is orthorhombic, space group P*a*, with unit cell a=13.8949(14), b=12.0776(12), c=15.228(3) Å. The structure appears to be related to that of becquerelite. Ca2(UO2)2(Si2O5) 3·10H2O was also indexed on an orthorhombic unit cell, a=12.075(3), 6=15.406(6), c=26.043(6) Å. The Powder Diffraction File coverage of uranium-containing minerals which could, on the basis of their chemical formula, form in U-containing cements is also reviewed.

Original languageEnglish
Pages (from-to)81-86
Number of pages6
JournalPowder Diffraction
Issue number2
Publication statusPublished - 30 Jan 1997


  • Becquerelite
  • Powder pattern
  • Uranium
  • X-ray diffraction


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