-
Jessica6754
They probably can if they have been kept in complete darkness for a year, possibly even in very clean water, without organic impurities, as that would serve as food for bacteria that would cover the stones. Otherwise, the stones look very clean. It's as if they were stored in a warehouse... in a dry and unheated room. From my personal experience, my former live stones were cleaned and washed, showing their whiteness after being left under the open southern sun and sometimes in heavy rain for a year in the fresh air...