200 medium RHODIZITE. My test box weighed in at 44 grams. Weight will vary a bit but should not stray too far from 44 grams, maybe anywhere from 41 -47 grams. I throw these in my super charger to give them a good charge before they go out. Rhodizite is a bit magical in that it never needs to be "cleared" and can only hold a "positive" charge. Only a few types of crystals have that ability.