1. color: jet has a variety of colors, usually showing different green tones such as dark green, light green and grayish green. Some black jade also has black spots or textures, which will show a green luster under the sunlight.

2. Texture: The texture of jet usually presents a fine and uniform stripe or mesh structure, which has a natural aesthetic feeling. The arrangement of texture will also affect the value and decorative effect of jet.

3. Texture: The texture of jet is fine and smooth, and the touch is warm and moist. Due to the high timely content, jet has certain hardness and wear resistance, and is not easy to wear.

4. Density: The density of jet is relatively high, so it is more durable and not easily damaged by external forces. At the same time, jet also has a certain toughness and is not easy to break.

5. Gorgeous and elegant: jet is usually used as a material for jewelry. Because of its beautiful colors and textures, it can make gorgeous and elegant jewelry works. Ink jade is also often used to make carved works of art, and its delicate texture and natural colors add unique charm to the works.

Generally speaking, jet is favored by its unique color, texture and texture, as well as gorgeous and elegant appearance, and has become a popular stone.