CERT. No.

Global Gemstone Certification

Aquamarine

Aquamarine

Deriving its name from the Latin word for sea, this gemstone does have the aesthetic of clear, blue water. However, it can be discovered in shades ranging from light blue to blue-green. With heat treatment, it is possible to remove the green hues present in certain aquamarine stones. This is a cyan or blue variety of beryl. The form of the stone can be found in deposits throughout Sri Lanka. There is also a deep blue version of aquamarine. The largest Aquamarine gemstone was discovered in Marambia, Brazil in 1910. It weighed a tremendous 110 kg.

 

Chemical Formula

Be3Al2SiO6

Color

Blue

Hardness

7.5 – 8.0

Crystal System

Hexagonal

Refractive Index

1.57 – 1.58

SG

2.6 – 2.8

Transparency

Transparent to translucent

Double Refraction

.006

Luster

Vitreous

Cleavage

3,1 – basal

Mineral Class

Beryl (Aquamarine)