While often considered a gemstone, the warm radiating glow we call amber is not a stone, but a fossilized resin from ancient evergreen trees.
Citrine or yellow topaz is a yellow quartz reputed for centuries as possessing the healing properties of the sun. The mineral is often associated with amethyst, but it’s much rarer than its purple relative. Citrine is made by heat-treating amethyst. The crystal and its purported healing powers date back centuries to the time of the Ancient Greeks.