Exotic Environments Blue Glow In Dark Geode Stone Aquarium Decorations
Geodes form in gas bubbles inside fresh lava, or in rounded cavities in sedimentary formations. After rock around the cavity hardens, dissolved silicates and/or carbonates are deposited on the inside surface allowing crystals like Amethyst to form inside the hollow chamber. Safe & non-toxic. Product Dimensions: 6.25'' x 3.75'' x 6''