Citrine is a yellow to gold-brown variety of quartz, with a hardness of 7. Its name is derived from its lemon yellow color. Citrine is often created by the natural or artificial heating of Amethyst, which changes from purple to gold at 878 degrees F. It is found in the USA, Brazil, Uruguay and Russia. Mystic Lore: Intuitive sources say that Citrine enhances creativity, mental clarity, will power and sensuality. It is said to enhance alertness, to attract wealth and prosperity, and to connect the mind to the higher spiritual realms.