Citrine is from the quartz group with a Moh’s hardness of 7. Most commercial citrine is heat-treated amethyst or smoky quartz. Natural citrine is rare. Citrine is known for many healing properties. It is thought to be good for kidney, colon, liver, gall-bladder, digestive organs, and heart tissue regeneration. Citrine is also supposed to prevent self-destructive tendencies by assisting in raising one's self-esteem, and giving cheer, hope, warmth, and energy. Citrine also attracts abundance. It is the best stone to use in matters of business, education, relationship, or family matters.