Question: what is the difference between quartz and topaz?
Answer: Quartz has a hardness of 7 on the MOHS scale, while Topaz is an 8. That means that Topaz will scratch Quartz. ... Quartz has a nice sparkle but Topaz often reflects yellows and blues like a diamond, that is why it is described as silver at times, the shine and sparkle are totally different from Quartz.