Document yp0Kk1O7GDLmpBb5wLONkw9r6

5 W walter c mscroneassociatesinc CONSULTING ULTRAMICROANALYSIS + MICROSCOPY SMALL PARTICLE PROBLEMS - STATE CHEMISTRY 4 February 1977 Miss Regina Gallagher , Johnson & Johnson 501 George Street New Brunswick New Jersey 08901 Dear Miss Gallagher TEB18 if TEB18 TEB18 1277 NM 1277 - Me Using transmission electron microscopy and selected area electron diffraction we have analyzed a sample of talc identified as Vermont 66 10-1 This tale is an excellent quality talc and contains no asbestiform minerals It is extremely platy with almost no extraneous material present There are few shards or rolled tale and rather few fines The only talc materials which we found were a flaky feathery kind of structure probably an iron oxide and small crystallites of and diffraction dolomite Representative electron micrographs are included with this report patterns Thank you for consulting McCrone Associates and if you should have any questions concerning this report please contact us Yours sincerely ee Ee GRG encl et ref 2546 e Pe SE? etene ee Gene Gene R. Grieger Senior Research Physicist Physicist ' 3820 SOUTH MICHIGAN AVENUE - CHICAGO ILLINOIS ILLINOIS 0516 ' 312 2-2-7100 - CABLE CHEMICRONE ... 0012696 JNJ 000338409