Have you come across those multi-coloured eggs that are on sale at those trinket stalls run by foreigners? I have always been fascinated by them, their multi colours and how cute and pretty they look.
I always thought they were made from marble until I found out later that they are made from onyx. Onxy is a stone with multple uses. They can be used to make vessel sinks and they can truly turn out to be rather pretty just like the ones shown here.