I bought these rough because I was planning on cutting & carving them anyways (Most carved very nicely). Giving them a rinse makes them look nice temporarily, if you want the shine to stay, rub them with mineral oil.I wish that the seller provided some sort of label guide for the rocks, but I was able to identify 90% of them. My set had a good variety, only 2 duplicates and 1 mystery rock among 12 total (Quartz, Rose quartz, Amethyst, Fluorite, Red Jasper, revainite, Sodalite, 2 Calcite, 2 TigerSee full review