Citrines are a transparent to translucent quartz that ranges in color from pastel (pale) lemon yellow to a deeper or golden yellow, to amber and a deep reddish brown. The name Citrine is derived from the yellow lemon or citron-like color. The International Gemstone Color Association describes this beautiful stone to be “Like golden Rhine wine or sparkling Madeira, heavy and sweet, citrine jewelry shimmers and brings a hint of sunshine to those dull November days.”While the deeper toned Citrines are often called gold topaz, or Madeira or Spanish topaz, except for the nuances of color, Citrine actually has very little in common with genuine Topaz— which is not quartz, but a higher-quality (and more expensive) clear gemstone. Very pale yellow Citrines are rare; and many commercially available Citrines are actually Amethysts, which are also Crystalline Quartz, that have been heat-treated. Heat-treating brings out the natural gemstone color—and the stones are still considered "Natural." This is quite different from color-enhancement in which a dye or other substance is used to actually alter the stone's coloration. Miriam uses only natural stones and notes if a stone has been heat-treated.