was the key to their success. Why?.
Fluorite
The combination of large sizes, beautiful colours, plentiful supply and value for money makes fluorite a very tempting
Apatite
"Good things come in small packages" such is the case with apatite. Although seldom seen in jewelry stores, and
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
Size and Shape of Pearls
There are many different shapes and sizes of pearls depending on where the come from or what they are formed in.
Prehnite
Prehnite only fully reveals itself as a beautiful gemstone once it has been worked. The rough material hides its
Amazonite (microcline)
Amazonite is an attractive opaque stone that, due to the presence of lead, is either striped blue and white or a solid
Andean opal
Andean opal has become very popular because of its bright turquoise colour.
