At 11:47 AM 2/3/2000 +0300, you wrote:
>Everyone, help me please!
>I need anything data about Gibbs free energy formation same clay minerals,
>sach as
>chlorite, hidromica, Na- (or Mg-, or Ca-) montmorillonite (smectite),
>beidellite.
>Inform me, please,about such data or literature, in wich i can find such
>data.
>Synserely yours.
>Ryskova Helena.

Try:  Faure, Gunter, 1991, Inorganic Geochemistry, Macmillan Publishing
Company, New York
There may be a later edition.
Good Luck.
Kay Havenor, Ph.D., PG, CPG
200 West First Street, Suite 747
Roswell, NM 88201
505-622-0283