Fish Tank Stones, Crystal Rough Stones Mineral Specimens Science Fish Tank Decor Natural 2-3cm (500-1000g)(2-3cm1000g)

Through observation and research, we can understand the composition, structure, and formation process of different minerals, and increase our knowledge of geology and gemology! Because natural crystals have certain natural healing abilities, they are often used to form witchcraft rituals, chakra energy healing, meditation, etc. They are suitable for display in schools, museums, or home study rooms as popular science exhibits of geology and gemology, helping people better understand and know the natural world. They are also ideal decorations for fish tanks, which can enhance the ornamental value of fish tanks and provide a more natural and harmonious living environment for fish. Widely used as indoor and outdoor decorative stones and pebbles. Note: Dust may occur during transportaion, rinse the stones with water to remove the dust before first time using