Semi-Precious Gemstones

Aquamarine

Current Market Range

$200+

Named for seawater - like color; favored by sailors for protection.

Brazil, Pakistan, Nigeria, Madagascar, USA

Light blue to greenish - blue

Chemical Formula

Be₃Al₂(Si₆O₁₈)

Hardness

7.5

Luster

Vitreous (Glassy)

Crystal System

Hexagonal

Refractive Index

1.58

Specific Gravity

2.68

Crystal System

Gemstones and minerals are classified into seven primary crystal systems based on their atomic structure.

Refractive Index

The refractive index (RI) of a material measure how much light is bent, or refracted, when entering the material from another medium.

Specific Gravity

The specific gravity (SG) of a substance is a measure of its density compared to water.

Chemical Formula

A chemical formula shows the types and quantities of atoms in a molecule.