Size: The diameter of natural crystal is 30mm, crystal glass is resistant to most physics and is not susceptible to oxidation Material: Crystal glass is an important materials for jewellery making, its high transparency and refractive index make it a very popular gemstone material Properties: Crystal glass is more flexible and exceptionally clear, which makes it safer Versatile Use for Various Settings: The quartz crystal sphere is suitable for decorating flower pots, fish tanks, gardens, kitchens, and living rooms. It adds charm and intricate details to any living space Includes 1pc of clear natural crystal half ball