Amber is an organic gemstone, forming from the hardened resin of ancient pine trees. Amber is formed from sticky resin, and therefore commonly contains inclusions that became trapped in the Amber and remained there when it hardened. Most of these consisting of insects or plants, with the most well-known being mosquitoes. Amber with well-preserved organisms internally are highly collectible. Amber can be found in blue, red, green,yellow, orange, and brown.
* Amethyst >
Amethyst is one of the most popular gemstones. Its name comes from the Greek “amethystos”, meaning “not drunken”, as Amethyst in ancient times was thought to ward off drunkenness. Amethyst was once highly regarded among other precious gems, but discoveries of giant Amethyst deposits have made Amethyst inexpensive and very obtainable. Amethyst colors range from light to dark purple. The transparent deep purple colors being the most highly regarded.
* Ametrine >
Ametrine is a fairly new gem term. The word is a combination of Amethyst and Citrine. Ametrine is a gemstone combined of these two separate gemstones. Although Amethyst, the purple variety of Quartz, and Citrine, the yellow/orange variety of Quartz belong to the same scientific mineral classification, they have always been distinguished as individual gemstones. The color combination of Ametrine has sparked an interest and appeal to this unique gemstone. Ametrine is yellow, purple, and multicolored.The only significant source of Ametrine is the Anahí Mine in Bolivia.
* Andalusite >
Andesine is a red feldspar gemstone, sometimes having greenish hints. Andesine is a fairly new gem. It first appeared in 2003, though its exact origins were never fully disclosed. There are those who believe that a limited deposit of natural red Andesine from an source in Congo is the origin of this material. Although this is possible, it has yet to be proven. Aside from a possible natural stock from the Congo, the material on the market today is produced in China by artificially enhancing Labradorite through diffusion treatment with copper. Andesine can be found in colors red, green, yellow, orange, pink, and multicolored.
* Andesine >
Andesine is a red feldspar gemstone
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