Fine grade quartz crystals, colourless and with varying degrees of translucency.
Despite being one of the most abundant minerals on the planet, quartz crystals have amazed and fascinated man for thousands of years.
Quartz is a naturally occurring crystalline solid which means it's made up of crystals. The ancient Greek philosopher Theophrastus believed it was a specific type of ice that would never melt. The fact that it could be found in the Alps further confirmed his theory.
In its purest form quartz is colourless and transparent. This stone is also known as rock crystal. The presence of various mineral impurities causes a wide variety of colours.