This is the exact set of four natural agate coasters you will receive! Set of four geode coasters - top quality. Round agate slices in natural earth tone colors - perfect size for natural geode coasters. These slices are in shades of brown and gray and make beautiful stone coasters. I use only slices that are high quality Brazilian agate with great color, translucency and interesting banding patterns. These crystal coaster slices are polished but they do not have rubber bumper feet - I can add them if you wish. You can use them as coasters, frame them, or use them in crafts. The possibilities are endless! Want me to frame them for you? I can do that! Send me a convo to discuss options and pricing! Agate is a variety of silica also sometimes known as "banded chalcedony." It is most often formed as nodules in volcanic rock. A vapor vesicle in the rock fills in over time with layers of chalcedony and crystalline quartz. When the cavity does not fill in completely there will be a geode center with the crystal points directed toward the interior of the specimen. The stone was named after the river Achates (now known as Dirillo and located in modern day Sicily) by the Greek naturalist Theophrastus. Agate has a long history of use for artistic and decorative purposes.
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