Silver Plated Oco Geode Slice Pendants with 3 Black Tourmaline Rods / 1.5-3" - SET OF 4

Quantity: 4 pieces

Average size range: 1.5 to 3 inches

Oco geodes form when groundwater deposits sediment and other minerals like quartz inside basalt pockets, which then seal over. These minerals harden in a similar process to agate, and the basalt eventually wears away to leave the geode behind. When cut open and polished, these geodes display colorful wavy patterns along the rim.