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1 <br />®�f1 <br />9 Co .040' 8 <br />G°S` e VL, 23i <br />Ms. Debbie Zufelt <br />Green Analytical Laboratories <br />75 Suttle Street <br />Durango, Colorado 81303 <br />Dear Ms. Zufelt: <br />May 24, 2010 <br />Lab no.. 210330 <br />Enclosed are the x -ray fluorescence (XRF) results forthe sample, "1005- 102 -10 Mayday /Rock" received <br />Friday, May 21 with PO# GA10 -125. The analysis was performed on a rush basis (one business day to <br />the next) so this report will be emailed to you by Monday, May 24. The analysis will be charged to your <br />credit card. <br />A representative portion of the sample was ground to approximately -400 mesh in a steel swing mill and <br />then analyzed by our standard XRF procedure for 31 major, minor and trace elements. The relative <br />precision /accuracy for this procedure is —5 -10% for major —minor elements and — 10 --15% for trace <br />elements (those elements listed in ppm) at levels greater than twice the detection limit in samples of <br />average geologic composition. A replicate sample and a standard reference material ( "SY4 ", a CANMET <br />standard rock) were analyzed with the sample to demonstrate analytical reproducibility for your sample <br />and analytical accuracy for geologic standards, respectively. The accepted ( "known ") values for the <br />quality control standard are listed with the XRF results. <br />Thank you for the opportunity to be of service to Green Analytical Laboratories. <br />Sincerely, <br />Joy. MP ep <br />i <br />