Coral influences Mangal or Mars which is responsible for the field of activity, energy, courage, ambition, sport, property, strength, commander, technical ability, mechanical, forcefulness and bravery. Red coral is recommended for Aggressions, temper, arguments, fights, accidents, violence, rebellions, fire, constant surgical operations & war or family arguments. The use of the coral in jewellery dates back to the Romans who considered it auspicious and were worn in amulets. Because of its auspiciousness, the coral, though not a precious stone has been given a coverted place in Navaratna. A good coral is opaquered, is perfectly round or oval and regular, is smooth, and gives out lovely splendors. It is flawed if it is spotted, cracked, has more than one shade of color or the surface is in anyway depressed or twisted. Mangal or Mars is like a general with its focus on precision and power in activity. These structures in the brain control activity by providing checks and balances, activating and inhibiting impulses in the brain and maintaining steadiness and precision of movement. Coral should be worn on the ring finger on Tuesday after having been embedded in gold or silver and performing Purification, Abhimantran, Pran-Pratishtha, chanting of Mantras.