Other
Webmineral: Quartz
This site is filled with information on the mineral quartz. General information, images, physical properties, and resources are also included.
Amethyst Galleries
Amethyst Galleries: The Mineral Quartz
This resource provides a description of the mineral quartz, including physical characteristics and color images.
Other
Rockhound Arkansas: Quartz as Gems
This article discusses different varieties of quartz that are used as gemstones. A general description of each is given, including its historical background and physical makeup. This page is part of an excellent, detailed website about...
How Stuff Works
How Stuff Works: How Quartz Watches Work
This article helps you undersatnd how the quartz watch functions. You will learn all about the amazing electronic phenomenon called the quartz crystal and how it forms the heart of a quartz watch!