Citrine is a form of quartz, as is amethyst. It is characterized by its yellow color, which can range from a pale 'white wine' to a deep coppery topaz. It is often confused with the rarer and more expensive topaz, which is harder. Citrine has a hardness of 7, topaz is 8.

Citrine's color comes from iron impurities within the crystal. It typically formed as amethyst, and became citrine due to heating, which changed the oxidation state of the iron. Some citrine is manufactured by heat treating amethyst, which occurs more widely in nature - it is indistinguishable from naturally occurring citrine. Sometimes due to uneven heating in the earth, amethyst and citrine are found mixed within the same crystal - this is known as ametrine, and can be quite beautiful.

Citrine can be faceted for use in jewelry, or obtained in its raw form. Citrine geodes are lovely pieces and can be found in a variety of shades of yellow.

Metaphysically, citrine is associated with the third chakra, the solar plexus or 'yellow' chakra, which deals with issues of personal worth and self-esteem. Use citrine to cleanse yourself of negative self-images, and unblock your third chakra, freeing yourself to be more confidence in your own power and decision-making.

Magically, citrine is associated with wealth and abundance. Use citrine in workings to boost your personal economy. Sometimes called 'the merchant stone', citrine can be placed in the cash register to encourage trade. It can also be used for protection.