Thick glass like that is pretty durable, especially fused silica. I work with glass artistically and it's surprising how strong borosilicate marbles are, for in

Thick glass like that is pretty durable, especially fused silica. I work with glass artistically and it's surprising how strong borosilicate marbles are, for instance. You can throw a 35 mm marble on concrete repeatedly before it will chip. They work like bouncy balls for a time. I doubt these thick sheets would shatter easily.