Citrine is the yellow to brownish-red variety of the mineral quartz. It is a widely used as a gemstone, and after amethyst it is the most popular quartz gem. Most citrine is formed by heat treating purple Amethyst. Citrine may also be produced by heat-treating smoky quartz from certain localities. In some amethyst deposits, the amethyst has been partially or fully changed over to yellow citrine by natural means of heating.
Natural citrine, which is rare, is yellow to orange-yellow, and occurs in much lighter hues than the heat-treated material, which is dark orange-brown to reddish-brown. Virtually all heat-treated material has a reddish tint, whereas the natural specimens do not. Natural light-yellow citrine is often called "Lemon Quartz" on the gemstone market. Sometimes citrine has a "smoky" hue to it and can beborderline between citrine and smoky quartz, with either definition being correct.
According to the lapidary traders’ codex it is o.k. to call heat treated amethyst citrine.
Citrine is known mainly for its use as a gemstone. Gems are faceted for jewelry, and it is often used as an inexpensive substitute for topaz. Citrine is also popular among mineral collectors.
Natural citrine is not common and occurs sparingly in many large Quartz deposits. Most commercial gem-grade material comes from Rio Grande do Sul and Minas Gerais, Brazil, but almost all of the Brazilian material is heat treated Amethyst.
Natural Citrine is found in the Northern Ural Mountains, Russia, in Colombia, Congo, Madagascar, Spain, France. In South Africa a unique form of natural Citrine is found together with Amethyst that has a spiky overgrowth of small crystals popularly called "Cactus Quartz".
A birthstone of November, the citrine crystal stone perfectly coordinates with natural autumn colors. The citrine crystal meaning is associated with wealth and abundance, which is why it is often called “The Success Stone.”
Citrine energises every level of life. It cleanses the chakras and opens the intuition. Citrine attracts wealth, prosperity and success. It imparts joy, wonder, delight and enthusiasm. Raises self-esteem and self-confidence. Stimulates the brain, strengthening the intellect. Citrine promotes motivation, activates creativity and encourages self-expression. Enhances concentration and revitalises the mind. It releases negative traits, depression, fears and phobias.
Beneficial in the treatment of diabetes, it stimulates digestion, the spleen and pancreas. Negates kidney and bladder infections. Citrine helps eye problems, increases blood circulation, detoxifies the blood, activates the thymus and balances the thyroid. Relieves constipation and removes cellulite.