Document jy6kMV5rkJvLKG5Z7d4x7GG2

fii.Pftt Arthur DL'ctJeJnc ACOftNP^R< -CM^S^OOS MASSACHUSETTS 05r<5 - ffii?} 55j.5??0 July 28, 1970 j]^.nr...V3Tic.e-Itodaja O-5 Director of Reseated Construction Produces Division V. R. Grace and Company Cambridge, Kassaehusects 02140 Dear Vance; C-69003-S3 I ajs enclosing a summary of work carried out under Phase 2 of our study on vermicuLite-base materials. I am also enclosing x-cay diffraction and fluorescence scans from the Phase 1 studies (see Synopsis of June 29, 1970) as veil as some color slides of Che non-vermiculite inclusions separated from No. 3 South Carolina and Hontana ores. The work described herein has exhausted the allocated funds under Pur chase Order Nos. 41482. and 41640. let me knw if you have any <;ucseions on this work or if we cay be of further assistance. Very truly yours. /bn Enclosures CCi Mr. Thecas Egan If-*-*--. ( Edward T. Peters Uv* e***;.* c**.*.i3 <r\;r\ VJ< .'.t *.<$;< .-.v* ; *1 WV-11916