1, light blue, turquoise blue to turquoise blue beryl is called aquamarine, and its color is composed of Fe2+, which is usually lighter. Yellow beryl can also turn blue after heat treatment. Aquamarine often contains liquid, gas-liquid two-phase or gas-liquid-solid three-phase inclusions and tubular inclusions arranged parallel to the direction of C axis, sometimes in intermittent rain shape, which may have cat-eye effect.

2. The pink beryl is Morganite, and Morgan stone can appear in a series of pink tones, such as orange pink, peach red, salmon color, light pink, bright pink, purple pink, etc., which is generally considered to be related to trace element Mn, but the specific coloring mechanism has not yet been determined.

3. The color of red beryl ranges from dark pink to dark brown. The important difference between red beryl and pink beryl is the difference in chemical composition. The results show that the alkali metal content of red beryl is very low and contains no water, while the manganese content is 0.08%, which is about 20 times that of pink beryl. Microscopic observation shows that the healing cracks are composed of gas-liquid inclusions.

4. The color of beryl is mainly caused by iron ions, and some beryls also have cat's eye effect. Beryl is very popular with jewelry brands because of its bright golden color.

5. Goshenite is an extremely pure beryllium aluminum silicate, which contains no chromogenic elements, and fine needle-like inclusions can appear in the crystal. The cut Goshenite has a strong fire color, which may be confused with colorless sapphire or topaz.