Gold in Quartz Gemstone Soap Gold in Quartz Gemstone Soap is a soap for dry skin. Kaolin, Saffron oil, Roses and verbena oils carefully tightens and moisturises dry skin. Gold In Quartz Gemstone Soap is a replica of the real stone, reproduced in a high quality soap. You can also buy this amazing gemstone soap in the set , Secrets of Arabia 7 and Secrets of Arabia 2.