img The Chemistry, Properties and Tests of Precious Stones  /  Chapter 12 IMITATIONS, AND SOME OF THE TESTS, OF PRECIOUS STONES. | 80.00%
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Chapter 12 IMITATIONS, AND SOME OF THE TESTS, OF PRECIOUS STONES.

Word Count: 1796    |    Released on: 01/12/2017

also to consider a few of the tests which may be applied to all stones. These are given here in order to save needl

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The Chemistry, Properties and Tests of Precious Stones
Chapter 1 INTRODUCTORY.
01/12/2017
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