Turquoise Colored Agate Coaster Set
Bring the natural, earthy, beauty of stone accessories into your home. Our coaster sets are made in the USA with genuine agate from southern Brazil. These coasters would make a wonderful gift for yourself or someone special.
Agate is the name given to a group of aggregates of various forms of silica, chiefly chalcedony. They form in nodules or holes in ancient lava flows. Water slowly percolates through the nodule depositing silica from the cooled lava in regular layers. Sometimes the silica contains minerals, when this happens a banding effect is visible. In different specimens the banding stops meaning the deposition has not proceeded far enough to fill the cavity resulting in a hollow space. The final deposit usually consists of quartz crystals directed toward the free space. This is called a geode. Agate is a unique mineral that was once thought to protect its owners from danger and even produce delightful dreams.