Document wDamZzx5mkdyjR9wYXqknxw4J

Wo C e rtify lliis Copy To Be A True ;ind I'.xaut C opv o f iln* O riiin;il House In (In* (^.irU'MMr M H liu i I'm v u is iiv Aruhivu Confidential Approved. Date DjC_i__JS53 Fellow. Project MELLON INSTITUTE OF INDUSTRIAL RESEARCHJ]^ t DEPARTMENT OF RESEARCH IN CHEMICAL PHYSICS ' - 1 ' > ' "" > - - - - JJ Kr. Lee Schreibcis__________ Feilow.hip Vn. ;- 259 _______ Dust Analysis; Pittsburgh Corning Corporation Project No----------------- 24 -X--------------------------- Date of Report--___December 5. 19S3 NATURE OF REPORT Preliminary. Progress___ Final_______ Sample Ec. 1571 5/x Film Ko 2464 1572 <5/jc 2465 1572-A < WyM- 2466 Major Constituents Minor i Quartz Analyzed 6o-70jt amorphous, Quartz 6 and clays. Quarts Probably a little clay. 95-100 All amorphous (no diffraction lines on the pcvder photograph). Douglas T. Pitman Leroy E. Alexander:010 T: 12-J-55 > QtL*.. QiC/ & RESEARCH ASSOCIATE qf^Vrw Cf fp&kAiLl SERlCR FELLOWT Number copies aade... ...... S......... . Ku*.ccr co. i :s nailod ,,C_. A'y....QLsi' (t. /" -6- I -- Wl . <--Cj. ; 2_ ~ l<---p.