Document v1kg1wEy2XYqqKw1XN9DEQRJq

Derek Helliwell F. S. Bilton - Purchasing June 1, 1972 Wollastonite Re. your memo of May 23, I did not know that the Celite from Johns-Msnville was a Wollastonite, since it is described as a "specially processed grade of Diatomaceouc Silica". I do have a West Coast source in Pfizer (see copy of letter and data sheet attached), and if you would like a sample of this please let me know and 1 will get in touch with , 'Pfizer. . They mention an "Eastern source" and the Chemical Dictionary shows that this material occurs in New York as well as California. ' However, we have been unable to discover any supplier other than Pfizer, so it may be that although the material occurs naturally in the East, it is not being commercially mined. FSB*pd/750 att. 1117