Hessonite, also known as the 'cinnamon stone', is a golden orange variety of grossular garnet. Hessonite or Cinnamon Stone, is a more common variety of grossular with the general formula: Ca3Al2Si3O12. The name comes from the Greek hēssōn, meaning inferior; an allusion to its lower hardness and lower density than most other garnet species varieties.
Rahu is a severed head of an asura, that swallows the sun causing eclipses. He is depicted in art as a serpent with no body riding a chariot drawn by eight black horses. Rahu is one of the navagrahas (nine planets) in Vedic astrology and is paired with Ketu. The time of day considered to be under the influence of Rahu is called Rahu kala and is considered inauspicious. In Vedic astronomy, Rahu is considered to be a rogue planet. The other name of Rahu is Bhayanka.
PRIMARY GEMSTONE: Natural Hessonite Grossularite Garnet (Gomeed): Hessonite is a variety of Grossularite Specie in Garnet Group. Being from the Garnet group the basic chemical composition is Silicate of Aluminium & Calcium. Hessonite has a high hardness of ‘6.5-7.5’ on the Moh’s scale of hardness. The other physical properties of Hessonite includes a high refractive Index of ‘1.74’ and moderate specific gravity of ‘3.6’.