Structures of Rapidcreekite & Tobermorite

[Hudgens, Bruce]

Does anyone have references to the structures of  tobermorite,
Ca5Si6(O,OH,F)18_5H2O, and/or rapidcreekite, Ca2(CO3)SO4_4H2O?  Any
information will be greatly appreciated.

Bruce A. Hudgens
USG Research & Technical Center
700 N. Hwy 45
Libertyville, IL 60048
(847) 970-5064 (voice)
(847) 970-5299  (fax)