Larvikite Tumblestone Magickally:Cancel unwanted spells, remove negativity. Every crystal purchased is cleansed before shipping and comes with information on the crystal free of charge CRYSTAL SIZES:Small = 5mm - 10mmMedium = 10mm - 20mmLarge = 20mm - 30mmX-Large = 30mm - 40mm  Large = 20mm - 30mmX-Large = 30mm - 40mm