MSI Fire Glass LFIRGGALBLK0.5CRU20 0.5” 20 lb Crushed Galaxy Black Fire Pit Glass mimics glistening stars in the night sky, creating an atmosphere of adventure and discovery around your fire pit. These crushed glass stones withstand intense heat and weather conditions. They are ideal for many applications, including fireplace glass, fire pit glass, gardens, water features, aquariums, landscapes and more.