March 01, 2019
Aquamarine Buying Guide.
Aquamarine Gemstone Information: Discover this blue green gem, cut, sizes, clarity, genesis, famous aquamarines, birthstone of march and more information.
Aquamarine’s name not only refers to the color, but also refers to its history and legend.
Aquamarine Gem belongs to the beryl family, just as the Emerald, Morganite, Goshenite, Red Beryl, Green Beryl, Heliodor and Maxixe; and it owes its color to iron trace elements.
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From the ancient of days its history has always been connected to sea and to mariners.
Aquamarine Gemstones has been used to make lucky charm for the sailors. The sailors and mariners believed the aquamarine held magical or curative powers if worn as an amulet. The gem protected their from the wrath of the sea god, Poseidon, like a gift from the sea, like a treasure of mermaids.
In past centuries, this blue beryl has been used like antidote for poison, oracle crystal, amulet, healing stone, etc.
The origin of the name from the Latin words “aqua” (water) and “marina” (sea), in reference to seawater color.
Aquamarine evokes the tranquility and security, like a calm sea.
Aquamarine is the blue to greenish blue variety of the beryl group.
This blue color have different hues:
Aquamarine Gems can be light or dark blue, greenish blue to pale green - blue. The commonest color is a pale to medium blue or greenish blue.
The most expensive aquamarine has a saturated blue color without inclusions, vitreous lustre and transparency.
Aquamarine cut stones are available in a wide variety of shapes. Apart from conventional cut (emerald, oval, pear, round, trillion, pear, etc) we can find fancy cuts. Emerald cut aquamarine is highly sought in jewelry.
Cabochon cutting is probably the most common form of gem cutting for translucent aquamarine, and faceting cutting for transparent aquamarine.
Aquamarine Gemstone is available in large sizes, smaller aquamarine gems (under 5.00 ct.) often show lighter color.
Typical inclusions: The main inclusions are parallel “tubes” or “channels” to axis C, solid inclusions (ilmenite, goethite, apatite, quartz, etc.), multi-phase inclusions, sometimes resembling iridescent “confeti”, healed fractures, feather or fingerprinters.
The characteristics and arrangement of the inclusions are responsible for the ASTERISM and CHATOYANCY in the aquamarine gemstone.
Genesis: Beryllium is concentrated in the Earth's crust and is associated with acid igneous rocks (rich in silica, granite type). The main primary deposits of aquamarine are the pegmatites.
Aquamarine Gemstones are found: Afghanistan, Brazil, Burma, Canada, China, Finland, India, Kenya, Madagascar, Mozambique, Namibia, Nepal, Nigeria, Russia, Pakistan, Sri Lanka, Tajikistan, Ukraine, USA, Vietnam, Zambia, Zimbabwe ..
Heat treatments are standard practice in aquamarine gem.
This variety of Beryl often present a greenish color, due to presence of Fe3+. With low temperatures and reducing conditions, varies the valence of Fe3+ to Fe2+ , the greenish hue disappears and the blue color intensifies.
We can find synthetic aquamarine (hydrothermally grown), but in general it is not profitable process like alternative to a natural aquamarine.
We can found large crystals of gem quality:
DOM PEDRO Origin: Brazil. 10,363 cts, cut by Bernd Munsteiner.
Current Owner : Smithstonian Institution.
For learn about Dom Pedro
OTHER FAMOUS AQUAMARINES
The Aquamarine corresponds to those born in March, as well as a wedding gift for those celebrating their 19th wedding anniversary.
More information about Birthstones, stones for fortune, horoscope, birth signs, etc.
Liquid inclusiones in light blue aquamarine.To look "iridescent confetti"
Solid Inclusions in Aquamarine
Two-phase oriented inclusions in Aquamarine
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February 01, 2019
Beautiful purple variety of quartz, its color can range from a pale lilac to deep purple. This purple gemstone is the Birthstone of February.
The name meaning of Amethyst comes from a Greek word Amethystos (not intoxicated).
La amatista es la variedad púrpura del cuarzo transparente y su color puede variar de un lila pálido a un púrpura intenso. Esta piedra preciosa es la gema natal de Febrero y está asociada al signo zodiacal Piscis.
Su nombre procede de la palabra griega AMETHYSTOS que significa no intoxicada / sobria.
January 01, 2019
Descubre este grupo mineral, el Granate, su rica variedad de colores, cuáles son más valiosos, tallas y tamaños más habituales, pureza e inclusiones, etc...