Violet-blue Iolite is the uparatana / उपरत्न for Blue Sapphire. It is also known as Neeli in sacred texts and as Kaka Neeli / काका नीली in other languages. In Sanskrit, this gem is known as Shani Priya which means Much Loved by Saturn. Known for showing a unique optical property called pleochroism it is a violet-blue coloured, semi-precious gemstone from the Cordierite mineral family. Since its impact is considered quite profound and powers equivalent to the Blue Sapphire (Neelam), it is worn to achieve financial stability, professional success, and mental strength. Iolite is also used for Crystal healing and Chakra healing in the crown Chakra.

Iolite Stone Product Specifications :-

Iolite commonly known as Kaka Neeli is basically a cordierite mineral species gemstone which comes in blue to violet blue colours.

Blue Sapphire Product Properties:

Chemical composition :- Mg2 Al4 Si5O18 replaced by Fe (complex silicate of magnesium and aluminium) 

Crystal System :- Orthorhombic.

Crystal Habit :- Short, prismatic.

Cause of colour :- Iron

Hardness :- 7 – 7.5

Specific Gravity :- 2.57 – 2.66

Refractive Index :- 1.53 – 1.54 to 1.54 -1.55

Inclusions :- Iron platelets seen in bloodshot iolite and the red colour is due to hematite or goethite. 

Origin :– India, Sri Lanka, Burma, Madagascar, Namibia, Tanzania, Brazil.

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