Tourmalated Quartz Tumblestone 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   Please Note: The size, shape and colour of the crystal you will receive may differ slightly from the crystal shown in the image. As crystals are from the earth, each is very unique