Tumbled Mixed Black Tourmaline and Sardonyx / 20-40mm AVG - 1 KILO LOT Menu Cubes Pieces measure approximately 4x8x2 (AVERAGE

Pieces measure approximately 4x8x2 (AVERAGE SIZE)

Fossils of Orthoceras are commonly found in limestone

Obsidian is not a gemstone but a kind of glass that forms when volcanic lava rapidly cools in the open air without forming any specific crystalline structures

resulting in white streaks

Tumbled Mixed Black Tourmaline and Sardonyx / 20-40mm AVG - 1 KILO LOT Menu Cubes Pieces measure approximately 4x8x2 (AVERAGEQuantity: 1 kilogram Average size range: 20 to 40 millimeters This assortment of 100% natural gemstones and minerals is perfect for art projects or for display. Each assortment contains a random selection of gemstones, and no two lots will be the same. This mix of black tourmaline and sardonyx comes to us directly from India.