Many of the associated uses of gemstones that were established over the millennia include luck, protection, abundance, wisdom, and more. Citrine, for example, came to be known as the “merchant’s stone” for its ability to manifest sales and abundance. Likewise, amethyst became dubbed as the “sobriety stone” because bearers of the stone were believed to have greater willpower. Green aventurine earned the nickname “shamrock of the gemstone kingdom” for bringing good luck and great fortune to those who wore it. However, the earliest uses of crystals likely extend even farther back than folklore. As soon as humankind began making tools and trinkets, it is likely they incorporated crystals and gemstones into them for various purposes. Notably, amulets have been used for protection and good luck since our earliest recorded history. While an amulet can be made of virtually any material, crystals bring the added benefit of their positive associations and intentions.