It's name means "water of the sea" in Latin because it's color so resembles that of ocean water. Iron creates
this color naturally in this stone, but heating specimens with lower iron content will bring out the desired color
permanently. When overheated though, it can lead to discoloration. Attempts to improve color with gamma and neutron
irradiation can be done, but the changes aren't permanent.
Aquamarine can make beautiful faceted gemstones, but jewelers must be very careful when using it for their
creations because it can be brittle. It is also sensitive to pressure.
Color: Light blue, dark blue, blue-green
Mohs' Hardness Scale: 7 1/2 to 8
Density: 2.68 - 2.74
Transparency: Transparent to Opaque