was the key to their success. Why?.
Physical Properties of Gemstone Material
An understanding of the optical and physical properties of the material is a prerequisite to knowing the best ways of
Hematite
The metallic silver-grey crystal surfaces of specular hematite are so highly reflective that they were used in the past
Malachite
Malachite was so popular in the 19th century that the Russian royal family panelled whole rooms with it, and the
Lapis lazuli
Lapis lazuli translates from the Arabic as "heaven (or sky) stone" - it was clearly held in high regard in ancient
Corundum
The most important of the gem families, corundum provides us with two of the best-known stones: ruby and sapphire. The
Tugtupite
According to Inuit legend, tugtupite possesses a special power. In the presence of lovers it will glow
Green moonstone
Green moonstone is not as well known as rainbow or blue moonstone as it doesn't have the colour play, but it is still a