There is perhaps no greater artistic expression that inspires the senses and evokes emotion than the use of color. It captures the mind and inspires. The enigma of color extends to a human fascination with colored minerals of varying degrees of opacity. This paper is the second of a multi-part series that identifies the physics and chemistry of color and how gemstones achieve color in nature, and then examines known enhancements to improve our perception of color.

Author: Oliver Passe