Citrine Cluster Silicon Dioxide: SiO2 Weight: 900gms Size: 16cm x 9.5cm x 5cm Source: Brazil Citrine is a variety of quartz whose color ranges from a pale yellow to brown due to ferric impurities. Most commercial citrines are heat-treated amethysts or smoky quartzes. However, a heat-treated amethyst will have small lines in the crystal, as opposed to a natural Citrine's cloudy or smokey appearance. It is nearly impossible to differentiate between cut citrine and yellow topaz visually, but they differ in hardness. The name is derived from the Latin word citrina which means "yellow" and is also the origin of the word "citron". Citrine was first appreciated as a golden-yellow gemstone in Greece between 300 and 150 BC, during the Hellenistic Age. Citrine has been referred to as the "Merchant's stone" or "Money stone", as it is believed it will bring prosperity and wealth. It helps improve confidence, self-image, and quality of life and brings light and joy. It stimulates your mental powers helping you to focus and bring clarity of thought in problem-solving and finding solutions. Known to enhance creativity, intelligence and decisiveness its a great crystal for those in business and education. Citrine is a stone that never needs cleansing and is good for diabetes, spleen, digestion, and blood.