while many people consider addiction to be strictly the purview of drugs + alcohol, addiction can be any seemingly unshakeable attachment that doesn't serve you, such as non-nutritious foods or an unhealthy relationship. these remedies will help strengthen personal will + release attachment as you work to free yourself from whatever your addiction may be.
hematite - addictions are primarily a root chakra issue, so using a crystal that helps balance the root chakra can be helpful. since addiction is an issue of too much energy, you'll want a crystal that absorbs as opposed to one that amplifies, since you want to balance the chakra energy there. this makes hematite an excellent crystal for addiction.
amethyst - amethyst is know as the 'sobriety stone', as it was once believed to protect against drunkenness. if you are addicted to a mind-altering substance (including caffeine or nicotine), keep a piece of amethyst with you.
'it is very important to note that before using, touching or interacting with any crystals or crystal remedies, you should always consult your doctor. crystal therapy is not a replacement for medical advice, practices or prescriptions. crystals work in tandem with physical care.'