was the key to their success. Why?.
Precious White Opal
White opal has a light base and can have a strong colour play.
Semi Precious Gemstones
If a gemstone is not precious, or organic, or artificial…. then the odds are it’s a semi precious stone.
Tanzanite and Zoisite
Within this species lies a gemstone of drama and intrigue that is considered, along with the sapphire, to be the finest
Peridot (also olivin or Chrysolite)
When peridot is good, it is very good, but when it is bad ... There is so much pale and lacklustre material around it
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
Ruby
Ruby is corundum that has a purplish- bluish red to yellow-red colour. The finest colour is pure red with a hint of
Prehnite
Prehnite only fully reveals itself as a beautiful gemstone once it has been worked. The rough material hides its
