The World's Most Useful
Gem & Jewelry Monthly Newsletter
Written by Carolyn Doyle for customers of
The Dorado Company
and other visitors to the
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Usable Gems... and a little opinion.
Garnet colors can now follow the rainbow.
Garnet colors, the subject of this issue of the AZGems
Gems newsletter answers a readers question. She asks...
"My sister and I both were born in January, and she
has a new ring with a bright green gem in it that she says is a garnet. What
colors can I get a garnet in?"
When we first began in the gem business in 1982, the
industry saying was... garnet comes in every color - except blue.
That changed in 1990 when blue garnets were discovered
Now they come in all colors and many shades. That is because
garnet is actually a whole family of minerals. The family is made up of several
species and varieties. What ties the family together is their crystal structure
- and part of their chemistry.
Garnet has the ability to substitute a number of different
elements into the same crystal structure. This leads to the manydifferent hues.
Most garnet gems are a cross between
at least two species.
I could make you cross-eyed by going through the entire
list, but I will only throw out a few terms as we discuss colors.
Garnet colors include pink, purple, violet, orange,
yellow, colorless, brown, black, several shades of green, and yes, many shades
Red garnet is by far the most popular and most common. This
gem is usually a cross between pyrope and almandine, two of the
species of garnet.
The ruby red of Arizona's Anthill Garnet is an
exception to the rule. They are usually pure pyrope.
Then there is the bright orange of spessartite...
which also occurs in red (with internal orange fire).
Rhodolite garnet is often the color of the rhododendron
flower, but can also be pink.
Hessonite is often a cinnamon color.
One of the vivid green garnets is called tsavorite,
named for a location in Africa... Tsavo, Kenya. Another bright green
garnet is called grossular, after the gooseberry.
Grossular garnet occurs in many colors, and colorless.
Color Change Garnet
Some garnets are one color in sunlight, and a different color under other
light sources. These are called color change garnets. Some change from
green to gold, some from red to green, some from red to blue, and more color
combinations are being
discovered each year.
Color change garnets are very rare. Blue ones are extremely rare.
The photo of the uncut garnet crystal shown above is from a new mine owned by Madagascar
Gems. This color change garnet definitely exhibits different colors under
different light sources.
Color change garnets are found in a few locations around the world in
addition to Madagascar, but that island nation seems to have a few not seen
Some color change garnets exhibit a more subtle change...
say from red to purple. These are known in the gem trade as
color shift garnets. They change color, but it is not quite
dramatic. The terminology allows more precise communication
within the industry.
Many garnet colors are available in our stock. Send me an
email and ask if we have the one you want.
||Click on the box...
and have Google start putting money in your bank account!
color change garnet is a keyword phrase that returns a number of
internet listings and ads with additional information and photos.
Gem Industry News...
Shop.org Advocates For Permanent Internet
Several industry sources report that Shop.org,
in one of its first efforts at advocating for public policy, is
asking the U.S. Senate to support a permanent extension of the
current ban against multiple and discriminatory taxes on
electronic commerce. The U.S. Senate Commerce Committee
recently considered a permanent Internet tax moratorium in an
Many states and other taxing bodies see internet sales as an
inviting new source of revenues. Internet merchants vigorously
oppose the tax collecting and record keeping burden.
Shop.org, the digital division of the National Retail
Federation, announced in August, that it has expanded its
mission to include advocacy and public policy.
I am seeing dire predictions regarding the continuing
increase in gold prices!
This is one article. You can find others with a Google
march toward $1000 Gold.
Could we prosper in a high gold market, or barely
survive? How many of us may go out of business if gold
actually does reach $1000?
If you believe in the predictions and have the means, you
could consider hedging gold by buying extra quantities of the
gold products you use, such as mountings or casting grain.
Do you enjoy jewelry and gems?
Do you enjoy talking with friends and co-workers?
Could you use an extra income source?
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The Dorado Company
P.O. Box 8232
Scottsdale, AZ 85252-8232