Aquamarine is a beautiful gemstone that is known for its vibrant blue-green color. It is a type of beryl, a mineral that is found in various parts of the world, but is most commonly found in Brazil. Aquamarine has a Mohs hardness of 7.5-8, making it a durable gemstone that is suitable for use in jewelry. It is also the birthstone for the month of March, making it a popular choice for those with a March birthday. Overall, aquamarine is a stunning gemstone that is highly prized for its beauty and durability.