Black Obsidian Square Coasters (2 Pieces) 3"-5" AVG* menu stars Avg Size Range: (3 to

Avg Size Range: (3 to 7 inches)

Size: 42 mm

Bismuth is a brittle

The origin of the purple hue can often be traced back to the presence of manganese or iron impurities within the stone

Black Obsidian Square Coasters (2 Pieces) 3"-5" AVG* menu stars Avg Size Range: (3 toBlack Obsidian Square Coasters Origin: India Quantity: set of 2 Size: 3" 5" avg Uniqueness Guaranteed: Every gemstone piece is one of a kind so they can vary in size, shape, and color. While we select them at random, they'll be as beautiful as those in the photos. Custom Requests: Have specific preferences? Leave a message with your order, and we'll do our best to accommodate your requests if possible.