Берил is a mineral composed of beryllium aluminum silicate. It is known for its beautiful colors, which can range from green to blue, yellow, and even colorless. The most famous varieties of берил include изумруд (emerald) and аквамарин (aquamarine), both of which are highly valued in the gemstone market. Берил is typically found in granite and metamorphic rocks. It forms in hexagonal crystals and can be quite large, making it a popular choice for jewelry. Due to its hardness, берил is also used in various industrial applications, including the production of beryllium metal.