Citrine is known as the "success stone" because it promotes success, prosperity, and abundance. It particularly promotes success in business, earning it another nickname, "merchant's stone", and is said to bring business if put in the cashbox of a shop or carried. Citrine is a stone of good fortune, although it brings good fortune in sometimes unexpected ways. It is a stone of manifestation, helping manifest abundance in many ways. Along with prosperity and good fortune, Citrine imparts generosity, to share the wealth, so to speak.
Citrine is our birthstone for Scorpio.