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SYNTHETICS AND SIMULANTS - Gemology Course
Category: Catering
GEOLOGY 198B. LESSON 9: SYNTHETICS AND SIMULANTS. Synthetics. Synthetics are man-made gem products. The Federal Trade Commission is quite specific in forbidding the use of the term "gem" or "gemstone" (or any recognized species or variety thereof), unless that product is solely and exclusively the work of Nature.
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