Emerald is a kind of gem, and its density refers to its mass per unit volume. Authoritative gemological data show that the density of jadeite is between 3.30 and 3.38, and the jadeite produced in Myanmar has the highest density, generally between 3.33 and 3.38. Therefore, the jadeite density of 3.25 does not hold.

Besides density, jadeite has other physical and chemical properties, such as hardness, refractive index and fluorescence. These properties are also an important basis for identifying the authenticity and quality of jadeite.