What is the red crystal for?

The function of red crystal can improve the function and secretion of the brain, improve the over-rational way of thinking, and make people feel happy.

Crystal is a rare mineral, a kind of gem, and a timely crystal, which belongs to the timely family in mineralogy.

Optical properties of crystals;

1, luster: glass luster. The fracture is oily luster. Gloss refers to the optical characteristics of reflected light on the surface of a gem. To observe the luster of the crystal, you can hold it in your hand and look at the surface reflection with the light of a lamp or a window. The brightness of transparent crystal is related to its luster.

2. Transparency: The transparency of a crystal is related to the quality and quantity of light passing through it. When light passes through crystal fragments or slices with a thickness greater than 1 cm, the reflected image can be clearly seen. If the bottom image is not clear enough and only the outline is seen, it is translucent.

3. Refractive index (RI): 1.544- 1.553, which hardly exceeds this range.

4.DR):0.009 (maximum), very stable.

5. Deviation value: 0.0 13. Dispersion means that the refractive index of a gem changes with the change of illumination light.

6. Luminance: uniaxial ortholuminosity. The interference pattern of uniaxial crystal seen under orthogonal polarization is unique, and its black cross arm does not reach the center, forming a hollow pattern, commonly known as bull's-eye interference pattern. The central part is usually light green or light pink.

7, multicolor: colorless crystals have no multicolor. Colored crystals have a variety of colors from weak to strong, showing different shades of body color.