Citrine is known as the yellow to orange variety of Quartz. Even though natural citrine is uncommon, the gem is produced by heat-treating Amethyst along with Smoky Quartz. It takes a relatively low temperature to change citrine’s light color to golden yellow, while heating it in higher temperatures gives it a dark yellow to brownish-red color.
The name of this gem derives from the citron fruit which is a yellow fruit similar to lemon. In general, the deeper colored citrine stones are most valuable - even those with reddish tints. On the other hand, lightly colored yellow Citrine can occur naturally but is very rare. The most intense yellow form is usually irradiated citrine which is known as “Lemon Quartz”.
Citrine is probably one of the most affordable gemstones. Its color ranges are also inexpensive. There are several false trade names used for citrine such as “Madeira Topaz” or “Gold Topaz” or “Bahia Topaz” describing regions in Brazil.
What’s also important to mention is that citrine can be found in large crystals so flawless gems of all sizes can be cut. There is even a natural mixture of purple Amethyst and golden Citrine which has been coined as “Ametrine”.
Citrine is cut in rectangular, oval and other shapes making the gem a popular pendant. Additionally, citrine is used as a centerpiece for many rings, earrings, bracelets and necklaces. Lesser quality citrine is used as beads for necklaces and bracelets.
Brazil is one of the largest producers of Citrine. However, it is found in other countries and regions including Argentina, Zaire, Namibia, Madagascar, Spain and Russia.