The Crusaders used them as protection against wounds and accidents during their journeys. In contrast, Asiatic warriors believed that glowing garnets, used as bullets, inflicted more severe wounds. In 1892, during hostilities on the Kashmir frontier, the Hanza tribesmen fired on British soldiers with garnet bullets, believing them to be more effective than lead bullets. Most people think of the garnet as a red gemstone, but in fact, it exists in all kinds of colors, such as black, many shades of red and green, or even colorless. The garnet's variety of colors comes from metals such as manganese, iron, calcium, and aluminum.
Green garnets are most highly prized but are very rare.
Emerald green and colorless stones are highly valued, followed by pure red garnets. Garnets are commonly found as small pebbles in streams, where the igneous and metamorphic rocks that contain them have weathered away. They're found in many places around the world, including North and South America, Australia, India, Asia and Spain. Garnets were treasured in 3rd and 4th century Greece, and continued in popularity during Roman times. Across the Atlantic, Pre-Columbian Aztec and Native Americans also used garnets in their ornaments.