All natural untreated Watermelon tourmaline crystal from Nigeria,Africa in 20 carat lots sized approximately 3-10 MM.Each 20 carat lot will be scooped from material as pictured with 20 carat lots consisting of 3 to 6 pieces generally and colors running green/pink/red and graded mixed mostly cab but many have areas of clean facet material.Many of these crystal pieces have natural faces and some even natural points.