Aquamarine
Aquamarine, named for the Latin phrase water of the sea , is the blue to blue green v... More
Aquamarine, named for the Latin phrase "water of the sea", is the blue to blue-green variety Beryl. Beryl also contains other gem varieties, including Emerald, and some lesser known varieties such as Morganite and Heliodor. Aquamarine ranges in color from a faint light blue to blue and bluish-green, with lighter colored stones being the more common type. Light green Beryl can be transformed into Aquamarine if heated to 750º F (400º C). The green hues in most Aquamarine can also be removed through heat treatment. Hide
Aquamarine GEMSTONE PHOTOS
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Aquamarine IN THE ROUGH PHOTOS
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Aquamarine JEWELRY PHOTOS
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Aventurine
Aventurine is a compact variety of Quartz Chalcedony containing small included flakes... More
Aventurine is a compact variety of Quartz / Chalcedony containing small included flakes or scales that give it a glistening effect. The inclusions are usually Muscovite mica, but may also be Hematite or Goethite. Though the color of Aventurine is most often associated with green, it can also be other colors such as gray, orange, and brown. However, color types other than green are uncommon, and rarely used as gemstones or ornamental material. Hide
Aventurine GEMSTONE PHOTOS
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Aventurine IN THE ROUGH PHOTOS
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Benitoite
Benitoite is a rare gemstone, and for all practical purposes only comes from a single... More
Benitoite is a rare gemstone, and for all practical purposes only comes from a single limited deposit in California. It is a relatively new gemstone, and was first discovered in 1907. Benitoite gemstones have a sapphire-blue color, and can have very good transparency and luster. Due to its rarity and lack of availability, Benitoite can be extremely expensive per carat. Hide
Benitoite GEMSTONE PHOTOS
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Benitoite IN THE ROUGH PHOTOS
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Beryl
Beryl is a single mineral with many varieties that are distinguished by their color. ... More
Beryl is a single mineral with many varieties that are distinguished by their color. Few other minerals have so many known varieties specifically identified by their color. Many of the Beryl varieties are very important gemstones. In fact, all the transparent varieties of Beryl have been used as gemstones, although Emerald and Aquamarine are by far the most important and well-known varieties. Hide
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The images below depict each gem variety of Beryl. (We are lacking a good image of Red Beryl.) See the individual variety pages for more photos.
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Beryl IN THE ROUGH PHOTOS
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The images below depict each gem variety of Beryl in the rough. See the individual variety pages for more photos.
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Bloodstone
Bloodstone is a dark green to dark bluish green variety of Chalcedony that is speckle... More
Bloodstone is a dark green to dark bluish-green variety of Chalcedony that is speckled with red or brown spots. The spotting appears similar to blood stains, as is indicative of the name of this gemstone. The spots may be very sparse to almost non-existent, or they may be very dense and interwoven. Bloodstone may also have red markings as stripes or veins, though spotting is the most prevalent and desirable habit. Hide
Bloodstone GEMSTONE PHOTOS
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Bloodstone IN THE ROUGH PHOTOS
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Carnelian
Carnelian is the red, orange, or amber variety of Chalcedony . Though often a solid c... More
Carnelian is the red, orange, or amber variety of Chalcedony. Though often a solid color, it may also be banded, in which case it would be jointly classified as both Agate and Carnelian. Carnelian is an ancient gemstone, having been used as gem material since antiquity. Although still used a gemstone today, its significance and value has been diminished since the ancient times. Hide
Carnelian GEMSTONE PHOTOS
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Carnelian IN THE ROUGH PHOTOS
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Cat's Eye
Cat s Eye describes a gemstone polished into a cabochon that displays a narrow band o... More
Cat's Eye describes a gemstone polished into a cabochon that displays a narrow band of concentrated light going accross the width of the stone. This effect, known as chatoyancy, or cat's eye effect, is caused by inclusions of fine,
slender parallel mineral fibers in the gemstone that reflect light in a single band. Of all the gemstones that exhibit cat's eye, Chrysoberyl Cat's Eye is the best known. Chrysoberyl has the strongest and most distinct cat's eye effect of all gemstones. Though several different gemstones types exhibit a cat's eye effect, only Chrysoberyl's cat's eye enjoys the
privilege of having the name "Cat's Eye" without any prefix. Whenever the term "Cat's Eye" is used, it refers to Chrysoberyl cat's eye by default, unless otherwise specified. Hide
Cat's Eye GEMSTONE PHOTOS
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Chalcedony
Chalcedony is the form of Quartz that is compact and microcrystalline . It occurs in ... More
Chalcedony is the form of Quartz that is compact and microcrystalline. It occurs in many different forms, colors, and patterns, and many varieties have been used as gemstones since antiquity. In the gemstone trade, the term Chalcedony is often used specifically to describe the white, gray, or blue translucent type of Chalcedony, but its technical term includes all additional varieties. Hide
Chalcedony GEMSTONE PHOTOS
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Additional images for the varieties Agate, Aventurine, Bloodstone, Carnelian, Chrysoprase, Jasper, Onyx, and Tiger's Eye are listed separately.
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Chalcedony IN THE ROUGH PHOTOS
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Chrysoberyl
Chrysoberyl is a hard, tough, and durable gem. Although lacking the fire of other gem... More
Chrysoberyl is a hard, tough, and durable gem. Although lacking the fire of other gemstones, Chrysoberyl in its various forms can be quite valuable. Most Chrysoberyl gems are yellow, though some are brown, green, or orange. Chrysoberyl is best known for its important varieties Alexandrite and Cat's Eye. Alexandrite is a rare and expensive form that exhibits different colors in natural and artificial light. Cat's Eye is Chrysoberyl that is polished into a cabochon and highly chatoyant, displaying a sharp line of light through the center of the stone. Hide
Chrysoberyl GEMSTONE PHOTOS
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Please see the dedicated pages on the varieties Alexandrite and Cat's Eye for additional images.
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Chrysoberyl IN THE ROUGH PHOTOS
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Please see the dedicated pages on the varieties Alexandrite for additional images.
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Chrysocolla
Chrysocolla is a gemstone with a nbsp beautiful nbsp sky blue to bluish green color. ... More
Chrysocolla is a gemstone with a beautiful sky blue to bluish-green color. Copper in its chemical structure is responsible for the bright attractive color. It is often multicolored with inclusions or veining of black and brown matrix material. Chrysocolla's lack of widespread gem use is due to its low hardness and lack of durability. It is sometimes coated or admixed with harder Quartz, and these harder, more solid forms are better fit for gemstone use. Hide
Chrysocolla GEMSTONE PHOTOS
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Chrysocolla IN THE ROUGH PHOTOS
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