Document Z45dJYGvKjem3X2YbkNnN7DYZ

^ ^ u n t f t ^ Laboratory Report.I EXHIBIT CAM-263 Cyprus Industrial Minerals Company 555 South Flower Street Los Angeles, California 90071 Telephone 213) 489-3700 Report No: 80--020 References: Key: Cyclosorb Date of Report: 1/24/80 Date ofWork Request / By: 1/22/80 CRM Copies: HTM LDM Reported By: c.J. Parmentier/M.M. Kazazian LEF # 9 Approved By: G. J . Gill Classification: status: Complete as requested. Subject: A competitive talc sample labeled as, "Cyclosorb". Objective: Characterize the talc sample labeled as "Cyclosorb". "Crown Z" is considering buying this product. TEST/RESULTS GEB 325 mesh Acid solubles (as CaO) Hegman Water soluble substances Water soluble iron Tap Density (Numinco) 80.2 99.99% 2.67% 6.0 .05% none 31.6 lbs/ft3 Scanning Electron Microscope (SEM) study of "Cyclosorb" talc sample, revealed the presence of fibrous minerals. The fiber particle population density was estimated to be about 5%, however, weight percent from XRD indicated 3% Tremolite. Microscopic study revealed that the majority of the fibers present were asbestiform. Transmission Electron CYPR-MA9B802 0013 Lab Report: 80-020 Gyclosorb -2 - M. M. Kazazain/C.J. Parmentie January 24, 1980 Tremolite fibers. Some polygorsgite fibers were also observed. ILLUSTRATION OF MICROGRAPHS Micrographs "A" and "B" are representative area micrographs of "Cyclosorb" sample, illustrating fibrous minerals. Micrograph "C" is a higher magnification of the fiber observed in micrograph "B" (yellow arrow). Micrograph "D" illustrates the morphology of the fibers at high magnification revealed by the (pink arrows) . *See attached CRC report for XRD, PSD, and SA. MMK:cw enc. CYPR-MA08802-0014 Laboratory Report Cyprus Research Company 2435 Military Avenue West Los Angeles. California Telephone 213) 478-0462 Filing No. 80-0023-CIMT-LA Key: Cyclosorb Date of Report: 1/24/80 Date ofWork Request / By: 1/22/80 ReportedBy: R.C.CLOUD/P. COLVILLE Approved By: L.E. FERREIRA^tif Status: Subject: COMPLETE Cyclosorb References: *0 007 80-020 Copies: M .KAZAZIANr V c . CLOUD, P. COLVILLE, FILE Classification: Objective: XRD, PSD, SA Results X-ray diffraction analysis Talc >80 % Mica <10 % Calcite ^5 % Dolomite ^ 2 % Tremolite 3.1 % 2 Surface area = 4.5 m / g See attached curve for particle size distribution - IjtjlrMjLP. COLVILLE/R.C. CLOUD PC/RCC/bb V CYPR-MA08802-0016 SAMPLE IDENTIFICATION Cyclosorb Density 2 . 7 5 -g/cc LIQUID----- ^ 2 ^ -. Preparation ... ......... . .. ....... , _ PARTICLE SIZE DISTRIBUTION ' 80 T 007 _ Density ...... _g/cc 5` Viscosity ... ------- cp DATE __ l / 2 4 / S 0 BY. ... R C . CLOUD TEMPERATURE .. .... .. 1 EW w aiter c. me crone associates, inc.CONSULTING: ULTRAMICROANALYSIS MICROSCOPY SMALL PARTICLE PROBLEMS SOLID-STATE CHEMISTRY 18 March 1980 Mr. Joseph Blashka Crown Zellerbach Camas, Washington 98607 Dear Mr. Blashka: At the request of Mr. Gordon Gill of Cyprus Minerals I am submitting a revised version of my report of 11 March 1980 which will clarify the position with regard to the fibrous tremolite detected in your talc sample, C-Z, Camas. Yours sincerely, RME:gb Ref: MA 8802 cc: Lou Murino Gordon Gill Richard M. Ellis, Jr. Research Microscopist 2820 SOUTH MICHIGAN AVENUE . CHICAGO. ILLINOIS 60616 312 842-7100 . CABLE: CHEMICROfC ;Y P R -M A 0 8 8 0 2 -0 0 1 8 waiter c. mecrone associates, inc. CONSULTING: ULTRAMICROANALYSIS MICROSCOPY SMALL PARTICLE PROBLEMS SOLID-STATE CHEMISTRY 11 March 1980 Mr. Joseph Blashka Crown Zellerbach Camas, Washington 98607 Dear Mr. Blashka: I have completed my asbestos analysis of talc sample C-Z, Camas. The sample was examined using transmission electron microscopy (TEM) and selected area electron diffraction (SAED). The sample was found to contain amphibole fibers, probably tremolite. The amount is less than 10%. Thank you for consulting McCrone Associates. Please call us if you re quire further information. Sincerely yours, RME :gb Ref: MA 8802 cc: Mr. Lou Murino Cyprus Industrial Minerals Richard M. Ellis, Jr. Research Microscopist 2820 SOUTH MICHIGAN AVENUE . CHICAGO, ILLINOIS 60616.312/842-7100 . CABLE: CHEM ICRCCYpR- M A 0 8 8 0 2 - 0 0 1 9 Cyprus Industrial Minerals Company Purchase Order 555 South Flower Street Los Angeles, California 90071 Telephone (213) 489-3700 r Ship To: Acknowledgement Requested 3o JL & C> Vendor Walter C. McCrone Associates Inc. 2820 S. Michigan Avenue Chicago, IL 60616 L L Invoice in triplicate To: Cyprus Industrial Minerals 555 S. Flower St. Los Angeles, CA 90071 Attn: International Dept. on all papers and packages relative to this order. CYPRUS CYPR-MA08802-0020