ITEM NAME:Natural Crystal Quartz Gravel Crush Tumbled Gems Healing Mini Chip Stones Descriptio n Description: 1. Automatic release ; 2. Subjected to various external forces can release negative ions; 3. use: jewelry, Sweat room, interior decoration, textile, paint, Ceramic building materials, drinking water purification, household, electronic products and other fields Specifications: Name: Black Tourmaline granule Crystal Electric Shitoma Lynn Material: Electric Stone Color: Black size: 2mm diameter Package Included: 1 bags 50/100g High quality buy, happy buyï ¼ Natural Crystal Quartz Gravel Crush Tumbled Gems Healing Mini Chip Stones.Material: Electric Stone. use: jewelry, Sweat room, interior decoration, textile, paint, Ceramic building materials, drinking water purification, household, electronic products and other fields. We want to make sure you are happy with our item.