Swdgems.com is ruby
gemstone and pink,
green, yellow, fancy, blue sapphire gemstone
supplier and dealer. We offer online shopping with 128 bits
secure payment. Our cabochon ruby, cut
ruby stone suitable for made jewelry
such as ring, earrings and engagement rings, necklaces.
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History:
Corundum has two varieties
sapphire (greenish
blue to violetish blue) and ruby (medium
light to dark orange red to purplish red). It is a king of gemstones,
and a symbol of love and power. The color caused mainly by corundum Ribies
are founded in Asia, Africa, such as, Myanmar, Sri Lanka "Ceylon",
Thailand "Siam", Montana and South Carolina.
The most famous locality for fine rubies is the
Mogak Stone Tract in Burma. The stones are found in
soil resulting from the weathering of metamorphosed limestone.
The rubies of Thailand are found in the southeast of the country near
the Cambodian border, The rubies in Sri Lanka are found with sapphire
in gravels in the Ratnapura, Rakwana, and Elahera districts. Star rubies
are also found at the Burmese and Sri Lankra localities
Ruby is a the most valuable gemstones, because they
have wonderful color and overwhelming brilliance. The most important,
it is an extremely rare gem stone, especially in the high quality. If
we want to study about rubies, we can study at India which is the classical
country of Rubies. The literature of India contains a rich and varied
knowledge collected and handed down for over two thousand years. In the
Sanskrit language Ruby is called "ratnaraj", which does in fact
translate as "King of Gemstones". Future more, the term "corundum"
which we use today is derived from the Sanskrit word "kuruvinda".
Rubies have a hardness of 9 on the Mohs hardness scale
and usually the color is medium light to dark orange red another color
is called sapphire.
The value of ruby gemstone is base on the several characteristics, such
as, size, color, clarity and cut. In the laser industry, it is used to
be a medium to produce lasers
Compositons
Chemical Composition : Aluminium Oxide (AI2O3)
Hardness : 9
Crystallography: Hexagonal - rhombohedral.
Physical Proerties: H9. SG 4.00, +0.10/-0.05
Optical Properties. medium light to dark orange red
Chemical Composition: Aluminum oxide, the color of ruby is due to trace
amounts (up to 4%) of chromium replacing aluminum in the crystal structure.
Trade Terms
Trade terms persist that originally related to localities.
Burma or Burmese ruby is applied to what many consider the finest
color; it describes stones that are red to slightly purplish red of medium
dark tone and vivid saturation, or some one call "pigeon' s blood"
Ceylon or Sri Lanka ruby refers to lighter toned stones that tend
to be quite brilliant.
Thai or Siam ruby
refers to darker red to brownish red purplish red stones
African (Umba River) ruby is
typically orange red.
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