|
| |
| |
Quest for Quartz - Varied and Versatile |
|
|
|
| |
Usually, I like to high light a single gemstone and discuss
some of its unique properties. This time I want to discuss a vast group of
gemstones - the quartz family. Quartz gemstones have a vast variety of
deep colors, durability and affordability. What other family in the realm
of jewelry and technology can boast all this? Quartz! Composed of silicon
and oxygen, quartz is the most abundant mineral in the earth’s crust
with varieties that include amethyst, citrine, ametrine, smoky quartz,
rose quartz, agate, jasper, onyx, and many more. Examples of quartz
jewelry have been found all over the world. And, at 7 on the Mohs hardness
scale and having no cleavage properties, quartz is tougher and more
durable then many gemstones. The beauty and variety of quartz is quickly
raising its status - among customers and jewelers alike as colored stone
jewelry continues to be women’s newest favorite accessory - from simple
to spectacular!
Watch making was revolutionized when the Swiss captured quartz’s
piezoelectric property and began producing quartz watches. Quartz
movements run on batteries, simplifying on lives. This ability to generate
energy also made quartz essential in the development of much of today’s
technology.
Quartz develops with one of two structure types: macrocrystalline and
cryptocrystalline. Macro forms have very large crystal structures that are
visible to the unaided eye and include the most well-known varieties such
as rock crystal (clear), smoky quartz (brown), citrine (yellow) and
amethyst (purple). Another example that was virtually unheard of till
recently but is increasing in popularity and usually seen in big chunky
pieces of jewelry is rutilated quartz with is typically clear with what
looks like straw throughout as inclusions much like the debris trapped
inside of amber. Cryptocrystalline structures are tiny, too small to even
be seen under a lighted microscope, and include gemstones such as
calcedony (blue or lavender) and agate (almost every color imaginable and
variegated with multiple colors in a single stone). These gemstones are
opaque and cut into cabochons. This variety is less expensive than the
more well known, popular faceted ones. Varied and versatile, the quartz
family of gemstones have something to offer everyone.
|
|
|
|
| |
|
|
|
|
|