By the way, introduce tortoise shells.
Tortoise shell, vertebrate, reptile, Tortoise shell. Generally, it is about 0.6 meters long, and the largest can reach 1.6 meters. There are two pairs of forehead scales on the top of the head, and the upper jaw is hooked. The back horny plate is banded, with smooth surface and brownish yellow pattern. The limbs are flippers. The tail is very short and usually doesn't show out of the nails. Sexual rape feeds on fish, mollusks and seaweed.
Produced in the Yellow Sea, South China Sea, East China Sea and tropical and subtropical coastal areas, tortoise shells in the Caribbean Sea are particularly precious, with black and yellow color, and golden nails (commonly known as golden nails) are the top grade. The general thickness is 0.5cm- 1.0cm. ..
This object has existed for about 50-70 years. The pendant is shaped like a water drop, 2.5CM thick and 3.5CM long, golden yellow and transparent. The surface is painted with Japanese quintessence, inlaid with diamonds and mother-of-pearl. The necklace is made of 0.8 yellow and black hawksbill beads with 18K gold cut beads. The whole necklace is made of 18K gold fittings.
According to the related text introduction and textual research, the pendant of this tortoise shell necklace is the largest unbraced tortoise shell in the world. According to experts, it will take at least 3000 years for the thickness of tortoise shells to be preserved, and the color of tortoise shells is a rare collection!