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AN UPDATE IN THE SEPARATION OF NATURAL FROM SYNTHETIC AMETHYSTS
2007
Bulletin of the Geological Society of Greece
Since the first synthetic amethyst was commercially manufactured about 30 years ago, the separation from natural material has been difficult for gemologists. Even today, the separation of natural from hydrothermally grown in K2C03 synthetic amethyst is still an issue. With only the help of classical gemological criteria (such as inclusions, twinning and color zoning) it is difficult to separate synthetic stones from their natural counterparts. The separation problem is even more complex in the
doi:10.12681/bgsg.16721
fatcat:kmctn6murrfp7bwnorrvnjnqou