Red Coral, known as Moonga in Hindi, is a unique organic gemstone formed by the skeletons of tiny sea creatures called coral polyps. Unlike most gemstones that are mined from the earth, Moonga comes from the deep sea and is highly revered in Vedic astrology.Key Features of Red Coral (Moonga)Organic Origin: It is not a mineral but a biogenic material made primarily of Calcium Carbonate ($CaCO_3$).Color Range: The most desired color is a deep, uniform "Ox-blood" red. It also comes in vibrant shades of orange-red and vermillion.Physical Texture: Natural Moonga has a smooth, waxy luster when polished. It often features tiny, natural surface pits or "grains" that prove its authenticity.Softness: It is relatively soft, scoring 3.5 to 4 on the Mohs scale, meaning it can be scratched easily and should be handled with care.Astrological Significance: Ruled by Mars (Mangal), it is known as the stone of energy and vitality. It is specifically recommended for those with a weak Mars in their horoscope or those dealing with Manglik Dosha.Health Benefits: Traditionally believed to improve blood circulation, boost immunity, and provide physical strength.