Wairakite

Wairakite is a zeolite mineral with an analcime structure but containing a calcium ion. The chemical composition is Ca8(Al16Si32O96)*16H2O. It is named for the location of its discovery in North Island, New Zealand, by Alfred Steiner in 1955.[1][2] The mineral has since been found in metamorphic rocks and in geothermal areas. It was most likely first successfully synthesized in a laboratory in 1970.[3]

References

  1. ^ Szostak, Rosemarie (1992), Handbook of molecular sieves, Springer, p. 482, ISBN 0442318995, http://books.google.com/books?id=tSXDrpyqQc8C&pg=PA482 
  2. ^ Steiner, Alfred (1955), "Wairakite, the calcium analogue of analcime, a new zeolite mineral", Mineralogy Magazine 30: 691–698, http://rruff.info/uploads/MM30_691.pdf, retrieved 2011-09-08 
  3. ^ Liou, J. G., "Synthesis and stability relations of wairakite, CaAl2 Si4 O12·2H2O", Contributions to Mineralogy and Petrology 27 (4): 259–282, doi:10.1007/BF00389814