These super fun unique studs are made of two small pieces of Raw Black Tourmaline. Connected to a metal post, and securely close with a metal back. A true statement piece! Mystical Tradition says to rub black tourmaline for luck and happiness. This reputation as a powerful stone and a very lucky stone, might come from the piezoelectric qualities. When the tourmaline is rubbed it becomes charged with magnetic electricity and the luck intensifies. Measures approximately: 10mm *LOVINGLY HANDMADE AND DESIGNED BY NaZari Jewelry *This item is made to order, each rock is raw and unique to its own. Each order will be similar to the pictures listed. .