Along with Topaz, Citrine is a popular gemstone representative for November birthdays. Want to know more about this unique gemstone? See quick facts below: Fun Facts: Citrine is also used for the 13th anniversary gemstone. It used to be confused with Topaz- the other representative for November. Citrine is a type of Quartz colored by the element, Iron. Localities: Brazil and Bolivia are the two most common localities. Mohs: 7 Color: Citrine comes in vivid yellows, reddish oranges, and other rich earth tones. Clarity: Eye-visible inclusions are not common- they are generally very clean. Shapes: A variety of shapes can be cut from Citrine; it can also be carved! Rounds, ovals, pears, emerald cuts, cushions, and squares, hearts, and trillions are all standard. Sizes: Citrine is available in a wide range of sizes- and compared to many stones, it is very affordable as the sizes increase, the price does NOT dramatically increase. Treatments: Many Citrines are heat treated Amethysts. Heating can deepen the color. Citrines can be naturally heated- deep burial within the ground is a common natural method.