Light Blue Aquamarine in Triangle Shape from Brazil

About Aquamarine

Aquamarine is the blue to blue-green variety of beryl, the same mineral family that includes emerald. Its colour is mainly caused by small amounts of iron. The finest material is often a clear, light blue, while greener tones can also occur. Aquamarine is transparent to translucent and commonly has a vitreous, glass-like lustre. It may show pleochroism: slightly different blue tones appear when viewed in different directions.…