ITEM DETAILS - Selenite plate is not included sizes may vary because its natural gemstones made by nature sizes are around 0.75-1.50x0.5 inches Comes with a Chain or without a Chain depends on the option you choose Chain is Iron & steel Amethyst is the world's most popular purple gem. It is the purple color variety of quartz that has been used in personal adornment for over 2000 years. Amethyst is one of the relatively few crystals that can be used with the specific purpose of improving intellectual and cerebral thought. Amethyst boosts hormone production and tunes the endocrine system and metabolism. It strengthens the immune system, reduces pain, and strengthens the body to fight against cancer. It destroys malignant tumors and aids in tissue regeneration. Cleanses the blood. Relieves physical, emotional, and psychological pain or stress. Amethyst eases headaches and releases tension. It reduces bruising, swellings, and injuries, and treats hearing disorders.