4/2/2023 0 Comments Colors of amethyst gemstone![]() The Anahi Mine is in a dolomitic limestone of the Murcielago Group, a sequence of limestones up toġ500 feet thick that dip to the southwest in the area of the mine. The mine has been operated by Minerales y Metales del Oriente S.R.L. Almost all of the world's commercial ametrine production has been from theĪnahi Mine in southeastern Bolivia. Table of ContentsĪmetrine is rarely found in nature. This material is known by other less-frequently used names including: "amethyst-citrine," "trystine," "bicolor amethyst," "bicolor quartz," and "bolivianite." The bolivianite name is a response to the material being designated as the national gemstone of Bolivia. The words AMEthyst and ciTRINE were combined to yield the name "ametrine," which is widely used in the gemstone trade. It is a relative newcomer to the gemstone trade, being available in small quantities for just a few decades.Īmetrine is a variety of bicolor quartz that has zones of amethyst (purple) and citrine (golden yellow) in contact with one another in a single crystal. Deep purple Siberian Amethyst is no longer available, although 'Siberian' is often incorrectly used to describe any intensely coloured Amethyst.Most people have never heard of ametrine and are very surprised to see purple and yellow in a single transparent gemstone.Īmetrine is a rare gemstone with a finite supply that is produced in commercial quantities at only one mine in the world. Uruguayan Amethyst is noted for its spectacular beauty. Brazil is currently the most well-known source, and the first Brazilian Amethysts arrived in Europe in 1727. Source of Amethystįound on every continent in varying amounts, Amethyst can vary depending on its origin. As it's a popular gem with gemstone cutters and jewellers, you'll find more different shapes and cuts of Amethyst than you will for many other gems. Amethyst crystals occur with reasonably few inclusions, so the standard is eye-clean, with no visible inclusions when the gem is examined 15 cm from the naked eye. ![]() The most valuable Amethysts are medium to dark toned, transparent and pure violet with no shading toward red or blue, although blue or red flashes are desirable and highly coveted. Composition of AmethystĪ variety of macrocrystalline (large crystal) Quartz (from the Saxon 'querklufterz', meaning cross-vein-ore) that occurs in transparent pastel roses to deep purples, Amethyst owes its colours to iron.Ĭolour is Amethyst's most important consideration, with the deeper shades commanding higher prices. ![]() Collapsing as his tears dripped into his goblet, its contents splashed onto the statue, creating the purple gem we call Amethyst. While protected from harm, unfortunately the spell couldn't be reversed, causing a guilt-ridden Dionysus to weep tears of sorrow. Unimpressed by Dionysus's shenanigans, all-seeing Diana quickly turned Amethyst into a Quartz statue. As Amethyst screamed, Dionysus filled his goblet ready for the main event, maiden versus tiger. The unlucky woman was Amethyst, and a big fan of the goddess Diana, followed by two hungry tigers courtesy of Dionysus. Dionysus, the ancient Greek god of wine (or Bacchus to ancient Romans) was upset after being shunned by a passing mortal so he swore revenge on the next unfortunate soul to cross his path. ![]() The story of how Amethyst came to be is as follows.
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