A rock crystal article comprising a mixture of stevia and erythritol disposed on the surface of a crystal nucleation agent. The crystal nucleation agent comprises a stirrer for convenient dispensing of the mixture into a liquid such as coffee or tea. The stirrer will have a handle region not containing any of the mixture and a dispensing region containing the mixture. Typically, the stirrer will be fabricated from wood or a polymer such as polypropylene. The stevia will be present in an amount of about 20 to about 80 wt. %, based on the weight of the mixture.
