Clear Quartz, also known as Rock Crystal or Ice Crystal, is composed of silicon dioxide. Clear Quartz can be transparent or opaque; you may also see striations or fractures contained within the stone.
We recommend that you do not roll your semi-precious stone dice on a surface harder than they are (i.e., glass or wood tables). We suggest you roll them in a dice tray to prevent possible chipping or breaking.See more about caring for Semi Precious Stone here
