The color is uniform throughout with no pits or color streaks.
Polished coral has a vitreous lustre.
Due to pollution, coral is an endangered species. Vidruma or coral influences Mangal or Mars which is responible for the field of activity, energy, courage, ambition, sports, property, strength, commander, technical ability, mechanical, forcefulness and bravery. Mangal or Mars is like a general with its focus on precision and power in activity. Mangal in our physiolgy is associated with the Red Nucleus, Pars Compacta, and Amygdala. 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.