
Beryl Aquamarine is a Cyclosilicate made up of beryllium (Be) aluminium silicate, sodium (Na), lithium (Li), and cesium (Cs). Aquamarine has a
hardness of 7.5 to 8 on the Mohs scale. The toughness of aquamarine is good. Aquamarine crystallizes in the hexagonal
crystal system with a prismatic, parallel and elongated crystal habit.
The aquamarine crystal is generally vertically striated or grooved and pleochroism is distinct in deeply colored crystals. Aquamarine has a vitreous luster. Ocasionally, some specimens of aquamarine display chatoyancy. Aquamarine has imperfect cleavage which runs parallel to the basal pinacoid. Aquamarine is transparent to translucent. Aquamarine's blue color is due to the presence of Ferrous iron atoms and the presence of ferric iron causes a yellow tint. It has a
specific gravity of 2.68 to 2.74 and a Mohs hardness of from 7.5 to 8. Aquamarine typically is on the low end of the specific gravity range, normally at less than 2.7. The pink variety exhibits a high
specific gravity of around 2.8.
Refractive indices range around 1.57 to 1.58. The refractive index (RI), measured using a refractometer, is an indication of the amount light rays are bent by a mineral. Birefringence is the difference between the minimum and maximum RI. When birefringence is high, light rays reflect off different parts of the back of a stone causing an apparent doubling of the back facets when viewed through the front facet.
Color
Aquamarines are found in a range of blue
shades, from the palest pastel to greenish-blue to a deep blue. Presence of iron impurities in the chemical composition is responsible for the color of the gemstone and change in its proportion causes the different possible hues. While the choice of color is largely a matter of taste, the deeper blue gemstones are more rare. Some aquamarine fanciers prefer the greenish hues, saying the greener tones remind them more of the sea. Generally this fascinating stone has even distribution of color throughout its surface.
Remember that Aquamarine is a pastel gemstone, and while color can be quite intense in larger gemstones, the smaller aquamarines are often less vivid.
Cut
Cutting rough aquamarine crystals is quite easy. This is the reason why many jewelry designers consider it their pet gemstone. They are able to achieve their imaginative cuts and shapes without difficulty. Aquamarine looks fantastic in every new and modern cut. This has increased the popularity of this gem to an even greater degree. The usual traditional cuts are also seen like
rounds,
pears,
ovals,
squares,
emeralds,
cushions, and many more.

Bright Blue Aquamarine |

Vivid Aquamarine Gems |

Brilliant Aquamarine |

Aquamarine Gemstones |

Blue Aquamarine |
Treatments
Many aquamarines are greenish when mined and cut. For those who prefer a purer blue, these gemstones are heated to enhance their blue color. Yellow-brown or yellow-green stones are heated to 400 to 450 degrees Celsius to bring out a deep blue color. Most aquamarine on the market today is heat treated. Stones with pale color are also often heat treated or irradiated to improve their beauty. These treatments are permanent and treated stones do not require any special care.
AJS Gems fully discloses any and all treatments to our gemstones.
Sources
Aquamarines are mined in a number of exotic places including Nigeria, Madagascar, Zambia, Pakistan and Mozambique, but most aquamarine comes from the pegmatites of Minas Gerais Brazil, where crystals weighing several pounds have been found.
Madagascar produces this dazzling stone in dark blue to light blue shades. Brazil offers many large, high quality stones as well. Other sources are from African countries namely Kenya, Tanzania, Mozambique and Nigeria. It is also obtained from the island of Sri Lanka, United States of America, India and Russia. New deposits are found in Pakistan and Afghanistan that yield large amount of gemstones.
Aquamarine occurs at most localities which yield ordinary beryl, with some of the finest coming from Russia. The gem-gravel placer deposits of Sri Lanka contain aquamarine. Clear yellow beryl, such as occurs in Brazil, is sometimes called aquamarine chrysolite. When corundum presents the bluish tint of typical aquamarine, it is often termed Oriental aquamarine. In the United States, aquamarines can be found at the summit of Mt. Antero in the Sawatch Range in central Colorado. In Brazil, there are mines in the states of Minas Gerais, Espirito Santo and Bahia. Zambia, Madagascar, Malawi, Tanzania and Kenya also produce aquamarine.
Aquamarine develops in granite pegmatites and certain types of metamorphic rock. It occurs in conjunction with quartz, microcline, muscovite, and almandine in metamorphic pegmatite. Beryl has become an important source of the element beryllium, a metal with a variety of commercial uses, such as in the manufacturing metal alloys.
Aquamarine |
Aquamarine Gemstone |
Fancy Aquamarine |
Vivid Aquamarine |
Loose Aquamarine |
Mythology
The birthstone for March, legends say that Aquamarine is the treasure of mermaids, with the power to keep sailors safe at sea.
Aquamarine protects against the wiles of the devil.
A dream of an Aquamarine gemstone means that you will meet new friends.
Aquamarine blue is a divine and eternal color, since it is, after all, the color of the skies. Aquamarine blue, however, is also the color of water with its life-giving properties.
Aquamarine seems to have managed to embody the light blue of the seas. This is not surprising, for according to legend it has its origin in the treasure chest of the legendary mermaids, and has for ages been reputed to be a lucky stone for sailors.
Ancient sailors traveled with aquamarine crystals, believing that it would ensure a safe passage, and guarantee a safe return; they often slept with the stones under their pillow to ensure sound sleep. They believed the siren’s (mermaid) fish-like lower body was made of aquamarine.
Its name has been derived from the Latin terms "aqua” meaning water, and "mare” or sea.
People in the Middle Ages thought that aquamarine could magically overcome the effects of poison.
Allegedly Aquamarines powers develop best if the stone is immersed in sun-drenched water. However, it seems a wiser course to carry it, because according to ancient traditions, carrying an aquamarine is supposed to guarantee a happy marriage and to make its owner happy and rich at that: the ideal gemstone, not only for lovers and married couples.
Trillion Cut Aquamarine |
Fine Aquamarine Gemstones |
Aquamarine Stones |
Intense Blue Aquamarine |
Aquamarine Gem |
AJS Gems Wholesale Loose Aquamarine,
Fine Quality Aquamarine Gemstone Specialist.
Highly competitive prices-The widest choice of varieties-Satisfaction quality guaranteed
Shop with confidence no risk - Money - Back - Guarantee
SSL Secure Payments - Fast FedEx delivery 2-4 working days
© 1998-2008 AJS Gems; all rights reserved. Users may download this information
for their own private, non-commercial use. Any other reproduction of this document
(text or graphics) without the express written consent of AJS Gems is strictly prohibited.