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![sd2016_0283](http://d3e1m60ptf1oym.cloudfront.net/7a102cde-5ab6-4c00-b199-e9ecd8071291/sd2016_0283_uxga.jpg)
![sd2016_0282](http://d3e1m60ptf1oym.cloudfront.net/09884d56-dd53-4503-b886-f72934b88e39/sd2016_0282_uxga.jpg)
Author: Charlie Cooke
Photo size: 16.1 Mpixels (46 MB uncompressed) - 4928x3264 pixels (16.4x10.9 in / 41.7x27.6 cm at 300 ppi)
Photo keywords: chemical tests, cutting agent, microcrystalline test, platinic chloride, Sam Drake, talcum powder, University of Derby
Published in: Chemical tests
![sd2016_0281](http://d3e1m60ptf1oym.cloudfront.net/031e70d0-266e-467b-9448-c3151db90fda/sd2016_0281_uxga.jpg)