Fake amethyst geode in china2/12/2024 The synthetic amethyst grown from alkaline solution is characterized by growth sectors, color zoning, and distinct infrared spectra. Synthetic amethyst grown from fluoride solution displays an unusual growth structure (a stream-like structure), color bands that parallel the seed crystal, distinct infrared spectra, and fluorine and lithium as trace elements. As noted by Lu and Sunagawa (1990), natural amethyst is usually twinned, it exhibits tiny solid inclusions, and it lacks a characteristic infrared absorption band at 2.8 mm (1 x 10-4 in.). The appearance and physical properties of both are very similar.īased on our study of both natural and synthetic amethyst, we have found that there are characteristic differences in crystal morphology, twinning, inclusions, growth zoning, color banding, infrared spectra, and trace element chemistry. Its synthetic counterpart, grown from either alkaline or fluoride solutions, is produced in Russia, Japan, China, and other countries. "Amethyst (quartz) is the most important gem variety of quartz, and is found in many localities worldwide. At the time I was adding to my collection catalog, found the following on the internet. Bought my first specimen almost four years ago from another dealer that got his material at the Tucson show. Recent Images in Discussionsġ8th Nov 2007 17:03 UTC Gerald Peters Synthetic Amethyst from China. Currier Digital LibraryOpen discussion area. Techniques for CollectorsOpen discussion area. Minerals and MuseumsOpen discussion area. Mineralogical ClassificationOpen discussion area. The gemstone world is rife with synthetic lab-created crystals and natural stones. Lost and Stolen SpecimensOpen discussion area. An Amethyst gem that is one solid color is most likely fake. ╳Discussions □ Home □ Search □ Latest Groups EducationOpen discussion area.
0 Comments
Leave a Reply.AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |