CERT. No.

Global Gemstone Certification

Amethyst

Amethyst

This is by far one of the most popular gemstones on the market today. The value of this gemstone has always been noted on the market. However, since the 1800s common discoveries of large deposits of the stone have ensured it is affordable for all. The name of amethyst originated from the Greek word ‘Amethystos’ which means ‘not drunken.’ During this time rich members of society would drink out of cups made from the stone. This was due to the fact that the cups created an illusion that the hosts were drinking wine, allowing them to secretly remain sober in front of their guests. The violet color of the stone is due to the process of irradiation as well as impurities of transition metals or iron. The hardness of the material is the key reason why it is chosen for use in creating beautiful examples of jewelry.

 

Chemical Formula

SiO2

Color

Purple

Hardness

7

Crystal System

Hexagonal

Refractive Index

1.54 – 1.55

SG

2.63 – 2.65

Transparency

Transparent to translucent

Double Refraction

.009

Luster

Vitreous

Cleavage

Indiscernible

Mineral Class

Quartz