Chemical Formula AL2O3
Crystal System Hexagonal
Refractive Index 1.76 - 1.77
Specific Gravity 3.9 – 4.1
Transparency Transparent to Opaque
Double Refraction 0.0008
Luster Vitreous to adamantine
Cleavage None, but may exhibit parting
Mineral Class Corundum
Blue Sapphire known as Neelam in Hindi and Neela in Sanskrit. Blue Sapphire is the most precious and valuable Blue gemstone. It is a very desirable gemstone due to its excellent colour, hardness, durability, and lustre. In the gem trade, Sapphire without any colour prefix refers to the blue variety of the mineral Corundum. However, the term Sapphire encompasses all other gem varieties and colours of Corundum as well, excluding Ruby, the red variety of Corundum, which has its own name since antiquity.
Who can wear?
Consultation with astrologer before wearing as per their birth details is necessary. On General Capricorn & Aquarius zodiac, born people can wear Blue Sapphire.
Coral, Ruby, Pearl and all their respective alternative gemstones.
Alternate (Semi-precious) to Blue Sapphire:
Use of alternate gemstone should be, when one cannot afford precious gemstone like Blue sapphire. The effects of semi-precious gemstones will last less compared to precious gemstones.
Amethyst, blue spinel, lapis lazuli