was the key to their success. Why?.
Sugilite
Despite the fact that sugilite has been in production for a relatively short period, there are already reports that it
Kyanite
Nearly all gemstones have a single hardness value, no matter where it is measured on the crystal.
Tourmaline
Tourmaline is a favoured gemstone, offering a variety of fabulous colours - sometimes several in just one stone. In a
Rhodochrosite
Rhodochrosite is another relative newcomer to the trade, having been on the market only since 1940. It can be
Corundum
The most important of the gem families, corundum provides us with two of the best-known stones: ruby and sapphire. The
Feldspar
Despite being the most common rock-forming minerals at the earth's surface, the stones in the feldspar species give
Garnet
Garnet is a far more exciting and versatile stone than people may think. Although the word garnet usually conjures up