Agate. Gu Haizilai is one of the three precious agates in the world. Gu Haizilai, also known as Gu Haizilai agate, is an extremely rare purple mineral and is known as a purple gem. The main mining area is located in Verseur, northern cape. Because agate violet is non-renewable and rare, especially high-quality agate violet, which accounts for less than 0.0 1% of the total exploitation, has extremely high collection value. Gu Haizilai's agate has a variety of colors and contains different trace elements, which makes its color generally appear black purple, light purple and purplish red. Among them, black purple sea ancient purple agate is rare, with rich and calm color and bright luster; Pale purple agate is more common, and it is the lightest kind of purple agate. Purple agate is also more common. It is a combination of purple agate and red agate, and its color is mostly reddish purple or purple.