Quartz, Prehnite And Babingtonite From Qiaojia, Yunnan province, China- Collectors Piece, Home decor, Statement PieceQuartz, Prehnite And Babingtonite From Qiaojia, Yunnan province, China Collectors Piece, Home decor, Statement Piece Weight 65g Size 6cm by 4cm Thickness 4. 5cm Quartz is the most common and widely distributed mineral in the earths crust. It consists of oxygen and silicon (silicon dioxide). This crystal can be formed in numerous ways and occurs in most metamorphic and igneous rocks, especially in gneiss and granite. Since it resists weathering, you