The blue sapphire is a gem of the corundum family. Sometimes white sapphires, rubies, and blue sapphires are found in the same mine, and that is why there is a mixture of colors in the crystals of these gems. Ruby is harder than white sapphire (known as pukhraj), and blue sapphire is harder than ruby and it is hardest of all.
Chemical Composition | |||
---|---|---|---|
Chemical Formula | Al2O3 | Hardness | 9 |
Specific Gravity | 3.9-4.1 | Refractive Index | 1.76 - 1.77 |
Sapphire is one of the two varieties of Corundum, the other variety being Ruby. Sapphire includes all colors of Corundum except for red stones, which are referred to as Ruby. Sapphire is the most highly valued of the blue gemstones.
Following are the general properties of Gemstone
Planet | Cosmic Color | Sign | Element | Time | Day |
---|---|---|---|---|---|
Saturn | Violet | Capricorn | Air | Sunset | Saturday |
Wisdom, integrity, discipline, spiritual achievement trough humility, patience, dedication and non-attachment.
Long life Govern leadership and perfection, highest human qualities
Paralysis, asthma, rheumatisms, teeth problems, bones problems
It is advised that this stone should be worn only under strict advise of expert astrologer otherwise it can prove harmful. A Word of Caution: Sapphires, especially a blue one, should first be worn only after trial, even if it is a perfect sapphire. It can be unlucky and cause trouble to the user. To test a blue sapphire one can wear the gem wrapped in a blue cloth bound around one's arm for a week. One can also place it under his pillow for three nights. If there is any bad effect, the sapphire should be rejected.
Blue sapphires are touchy gems; even when they are worn by the proper people, they can bring negative effects on occasion. This is because some gemstones are unlucky. Therefore, blue sapphire should always be worn for a trial period to ascertain whether the particular stone you have purchased will do harm.
High specific gravity
Transparence
Uniformity in color
Smoothness
Solid and compact body
Good cut and nice shape
Brilliance, exhibiting a star-like effect from inside when viewed in reflected light, emitting rays of light from inside