26.07ct Fire Agate Chalcedony Mexico In Sterling Silver Forged Wrapped Pendant Total Weight. Fire Agate is a variety of Chalcedony found in Mexico. Fire Agates were formed during volcanic activity when hot water, saturated with silica and iron oxide, repeatedly filled cracks and bubbles in the surrounding rock. This is a beautiful specimen of fire agate and makes a great pendant wrapped in forged sterling silver.  Total size of this pendant is 43 x 15 x 6 mm.   Shipped Free with USPS First Class Package.