Handmade Blue Apatite Stud Earrings. Electroformed in Copper. Earring posts are made of Surgical Steel and come with push on butterfly backs. Surgical Steel is good for most people with sensitive ears. The copper has been sealed to help preserve the finish and to protect from irritation. Earrings measure approximately 7mm by 10mm Blue Apatite helps you to achieve goals and clear away apathy, confusion and negativity. It helps to stimulate your intellect and expand knowledge and truth. Great stone for manifesting your desires. Blue Apatite also has a clearing effect on your aura.