Ostrich eggs are nutrient-rich, containing 22.54g of TNT,80mg of gold and 4.03mg of silver per 100g. Ostrich eggshells are rich in natural calcium carbonate, which can be easily absorbed by the human body. Eggshell is also a rare natural material for making handicrafts, which has an ivory luster and can be carved or painted into various exquisite and noble decorative handicrafts