Agate
Agate is a banded form of finely grained, microcrystalline Quartz . The lovely color ... More
Agate is a banded form of finely-grained, microcrystalline Quartz. The lovely color patterns and banding make this translucent gemstone very unique. Agates can have many distinctive styles and patterns, but each Agate is unique in its own habit, with no two Agates being the same. Hide
Agate IN THE ROUGH PHOTOS
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Most Agates are rough and dull in nature, with their banding patterns and color hidden until they are sliced and polished. The images below show examples of both Agates in their native, unpolished state, polished Agates, and combinations of the two.
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Alexandrite
Alexandrite is the highly regarded color changing variety of Chrysoberyl . The color ... More
Alexandrite is the highly regarded color changing variety of Chrysoberyl. The color of Alexandrite changes under different lighting conditions. If viewed in daylight, its color is
greenish blue to
dark yellow-green. If viewed in incandescent or candle light, its
color is pink to red. Alexandrite is a very rare and highly valuable gemstone, and until recently was extremely difficult to obtain due to its rarity. However, new sources in Brazil and Tanzania have made this gemstone available and more mainstream on the gemstone market. Hide
Alexandrite GEMSTONE PHOTOS
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Alexandrite IN THE ROUGH PHOTOS
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Almandine
Almandine is the most common form of the gemstone Garnet . The term Garnet describes ... More
Almandine is the most common form of the gemstone Garnet. The term Garnet describes a group name for several closely related minerals that form important gemstones, and Almandine is an individual member mineral of the Garnet group. Almandine is usually opaque and unfit for gemstones use; though the less common transparent to translucent forms make fine gemstones. In the gem trade, the term Almandine is rarely used on its own. It is either generically called "Garnet", or "Almandine Garnet". Hide
Almandine GEMSTONE PHOTOS
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Almandine IN THE ROUGH PHOTOS
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Amazonite
Amazonite is a translucent to opaque feldspar gemstone with a pretty green color. It ... More
Amazonite is a translucent to opaque feldspar gemstone with a pretty green color. It is the greenish variety of the mineral Microcline. Amazonite is named after the Amazon River of South America. There are no Amazonite deposits that exist in the Amazon region, so presumably this stone is named to its resemblance in color to the green of the tropical rainforest. Hide
Amazonite GEMSTONE PHOTOS
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Amazonite IN THE ROUGH PHOTOS
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Amber
Amber is an organic gemstone, forming from the hardened resin of ancient pine trees. ... More
Amber is an organic gemstone, forming from the hardened resin of ancient pine trees. The hardening process of Amber is known as polymerization, which fossilizes the resin over many centuries and makes it hard and sturdy. Amber
is formed from viscous, sticky resin, and therefore commonly contains
inclusions that got stuck in the Amber and remained there when it
hardened. These inclusions are usually of insects or plants, with the most well-known being mosquitoes. Amber with well-preserved organisms frozen internally are highly prized. Hide
Amber IN THE ROUGH PHOTOS
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Amethyst
Amethyst is one of the most popular gemstones, and has been considered valuable since... More
Amethyst is one of the most popular gemstones, and has been considered
valuable since ancient times. Its name derives from the Greek "amethystos",
which means "not drunken", as Amethyst in antiquity was thought to ward
off drunkenness. Amethyst was once highly regarded among
the precious gemstones like Ruby and Emerald, but discoveries of huge
Amethyst deposits since the 1800's have made Amethyst fairly inexpensive
and very obtainable. Amethyst colors range from light to dark purple,
and the transparent deep purple colors are the most highly regarded. Hide
Amethyst IN THE ROUGH PHOTOS
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Ametrine
Ametrine is a relatively new gem term, and the word is a combination of Amethyst and ... More
Ametrine is a relatively new gem term, and the word is a combination of Amethyst and Citrine. Ametrine is a unique gemstone in that it is essentially combined of 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 unique color combination of Ametrine has sparked an interest and appeal to this distinctive gemstone. Hide
Ametrine IN THE ROUGH PHOTOS
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Andalusite
div Andalusite gemstones are remarkable for their fascinating color habits and nbsp v... More
Andalusite gemstones are remarkable for their fascinating color habits and very strong pleochroism, which can cause a muliticolored effect of shades of yellow, olive-green, and reddish-brown within a single gem. Although Andalusite as a mineral is not uncommon, the transparent variety used as a gem is very rare. Another important form of Andalusite that is entirely different is the mostly opaque Chiastolite variety, which is known for its unique cross-shaped design within the body of a crystal.
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Andalusite GEMSTONE PHOTOS
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Andalusite IN THE ROUGH PHOTOS
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Andesine
Andesine is a red feldspar gemstone, sometimes with greenish hints and a slight labra... More
Andesine is a red feldspar gemstone, sometimes with greenish
hints and a slight labradorescent effect. Andesine is a relatively new gem on the market. 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 alluvial 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. Hide
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Andradite
Andradite is the most nbsp is the most lustrous of the Garnet s and has several gemst... More
Andradite is the most is the most lustrous of the Garnets and has several gemstone varieties. The term Garnet describes a group name for several closely related minerals that form important gemstones, and Andradite is an individual member mineral of the Garnet group. Andradite is a common mineral but is usually opaque and not fit for gemstone use; the transparent gemmy forms are rare and valued. The term Andradite is strictly a mineral term and is rarely used in the gem market. The gem forms of Andradite are known by their variety names of Demantoid, Topazolite, and Melanite. Hide
Andradite GEMSTONE PHOTOS
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Andradite IN THE ROUGH PHOTOS
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