Rare Mexican Blue Cantera Opal Sterling Silver Necklace

Rare all natural Mexican Blue Cantera Opal Necklace. These opals are only found in one place in the world. They originate from the Magdalena region of Jalisco, Mexico. Mexican Cantera opal is a type of fire opal that forms in rhyolite, a volcanic rock. Chain length is 18". Both chain and clasp are 925 Solid Sterling Silver stamped. Ships within 24 hours of purchase 💙