The surface of the bracelet is black, and a dozen lights are red. What jade is it?

The surface of the bracelet is black, but it appears red under the light, which may be Hetian Hongyu. Hotan Hongyu is a precious variety of Hotan jade, which is deep red to red in color, and the red part is formed by the infiltration of trace iron elements into jade. Under the strong light, the red color of Hetian ruby is more vivid.

In addition, the black surface of the bracelet but red under the light may also be related to the following kinds of jade:

1. xiuyan jade: produced in Xiuyan County, Liaoning Province. The main component of xiuyan jade is serpentine, which is mainly yellow-green in color and black-and-white in ink color, among which there may be black jade with tremolite structure.

2. Qinse Nanhong: An agate, which is often used to make bracelets and ornaments. The southern red of the harp is generally dark red or light red, and there may be black harps on the surface.

3. Tourmaline: Tourmaline is a gem, and tourmaline is a variety containing red elements. Under the light, tourmaline will appear red or pink luster.

The above information is for reference only, and it is impossible to determine what jade it is. If more accurate appraisal is needed, it is recommended to consult a professional gem appraisal institution or related jewelry experts.