1. Emerald is composed of rocks, which are actually an aggregate of pyroxene minerals and amphibole minerals, mainly jadeite. Strictly speaking, jadeite should be called jadeite or green pyroxene. Jadeite is actually a commercial name.

2. Jadeite is a very precious jade, and it has always been known as the "king of jade" in the jewelry industry, mainly because of its gorgeous color, good permeability and profound cultural heritage, which most jadeites do not have.

Jade belongs to jade, but jade is different from jade in the traditional sense. Jadeite can be divided into jadeite and nephrite according to different properties. People often say that jade actually refers to nephrite, that is, Hetian jade, dushan jade jade, Xiuyu jade, etc. Jade belongs to jadeite among jade.