About the materials of the products.

With people's knowledge and understanding of Polygonatum, the pursuit of Polygonatum products is increasing day by day, but only a few materials suitable for Polygonatum products can be used, mainly divided into medium sand, Nansha material, Xisha material and Dongsha material. These shellfish used for processing are all old fossils or jade. Because the raw materials are scarce and difficult to salvage, the materials suitable for processing are very precious. The main materials are as follows:

1. Nansha shellfish are distributed in the area of Nansha, which can be divided into Nansha shellfish and Nansha coconut shellfish. Because of its slow growth, fine growth line and hard texture. Individual coconut shells are highly jaded, and growth line can hardly be seen. They are yellow and moist as suet jade, and mainly produce jaded beads, bracelets, jaded small carvings and hand pieces. Nansha shellfish is large and thick, generally 80-90CM long, with high whiteness on the outer layer and jade inside, which is suitable for making large carved works.

Second, Xisha shellfish is a shell that is salvaged from the vicinity of Xisha Island, and its shape is generally 40-50CM. Because of its growing environment, its shellfish lacks hardness and toughness, and its carving is fragile, and its internal material grain is coarse, so it is generally only used to make ordinary quality beads.

3. Huangyan Island Shellfish, which are distributed in the islands near Huangyan Island, are mainly small coconut shells, similar in size to Xisha Shellfish, but hard in texture, 50% heavier than Xisha Shellfish, and because of its slow growth and fine growth line, Huangyan Island Shellfish is the main material of the products at present, and its biggest feature is color. Due to its special geographical location, Huangyan Shellfish has been created.