Aquamarine on Quartz Matrix - Unique #3 Aquamarine is a type of beryl that is famous for its seafoam green colour. The specimen for sale has a single elongated aquamarine crystal growing out of milky quartz matrix. There are also some mica crystal growing around the piece and an area of brown feldspar rock. This is an impressive combination of quartz and aquamarine, giving it an impressive appearance with powerful healing energies. Note: This product is fairly brittle and must be handled with care.