Our Mackinac Bridge Necklace is a custom design created in blue sodalite gemstone and .935 deox sterling silver on 18" sterling rolo chain. Pendant measures approximately 1.5 inches wide by 1 inch tall. Beautiful in blue sodalite, also available in black onyx gemstone listed separately, please view that listing to see photos and order in black onyx. This bridge was carved in wax by hand and solid-cast, 100% handcrafted from start to finish! Inspired by a visit to the bridge, amazing view against a clear blue sky. Our version in black onyx is very striking, perfect for those who love the bridge at night. Shown above with other stones, this listing is only for the sodalite neckace on 18" sterling rolo chain. Thanks for viewing our design of the "Mighty Mac"!