|
In addition to its use in tool-making, certain varieties of Quartz were used for
divination. Spherical Quartz rock crystals were often shaped into crystal balls
and used for disease diagnosis and awareness of events occurring in distant places.
More recently there was major production of synthetic Quartz during World War II.
This synthetic Quartz was used to supply crystals for radios.
Today, Quartz is not only used for gemstone purposes, but also as a raw chemical
ingredient in the manufacturing of abrasives, cements, concrete, porcelain, glass,
and many other industrial materials.
Because of its piezoelectric and pyroelectric properties, Quartz is commonly used
in the production of watches, clocks, computers, and radios.
Prasiolite is believed to facilitate bridging the gap between the physical and spiritual
aspects of life. It is also believed to attract prosperity by strengthening the
mind, emotions and will.
Availability :
Prasiolite is a relatively rare, inexpensive gemstone. Its popularity has recently
been growing as it is being offered more and more to gem collectors and connoisseurs.
Sources :
The correct Amethyst and yellow Quartz stones needed for the heat-treatment process
to create Prasiolite come mostly from the Montezuma deposit in Minas Gerais, Brazil.
Some sources have also stated that the correct Amethyst needed is also being mined
in Arizona.
Evaluation :
Prasiolite is rated at 7 on the Moh's Scale of Hardness making it ideal for everyday wear and is
suitable for virtually all jewelry applications. Prasiolite is a translucent
gemstone displaying colors ranging from a pale yellow-green to deeper shades of
green. Prasiolite is often mistaken for more expensive
gemstones such as Green Beryl,
Peridot, and Tourmaline.
Large, eye-clean stones with strong color saturation will naturally be at the pinnacle
of the value spectrum.
Common Cuts :
Prasiolite can be found cut
into most of the commonly recognized shapes / cuts.
Routine Enhancements :
Prasiolite does not occur naturally. Instead, it is produced by heat-treating Amethyst
and yellow Quartz.
Care & Cleaning :
Prasiolite are best cleaned
using warm
soapy water and a soft brush. As with most
gemstones, Prasiolite should be kept away from household chemicals and from prolonged
exposure to extremes of heat as this can cause damage or permanent changes in coloration.
In addition to this, prolonged exposure to sunlight is best avoided as the color
may fade. Ultrasonic cleaners and steamers are generally safe but should be used
with caution. Prasiolite jewelry should be kept in a fabric-lined
box away from other jewelry items in order to avoid scratching.
|