white shell quartz stone 1,High hardness 2,Wear-resistant, Healthy 3,15 years warranty white shell quartz stone A. Products Information:1. Specialized in quartz stone, nearly 50 regular colors, single color, double color, multi-color, pure color, golden sand, imitation jade series, jade series and platinum. 2. Quartz Surface-- 93 % pure quartz crystal, with 7 % of resins, color pigments and ...