Sold by piece, sized by weight. Stones from different sizes may look similar in the pictures depending on the shape of each piece. Looks may be deceiving but weight isn't. For size reference a true to size cardboard bank card has been placed next to the stones in some pictures.
 
SM: 7-10g
MD: 13-17g
LG: 20g and up
 
Turritella helps the body/mind with making better journeys (astral-projections), being able to see better and make better sense of it.
 
Stones cranked up by Jay Essex and Diana