Ammolite
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Ammolite
is named after “Ammon”, the ancient Egyptian god of life and reproduction,
because the shell of the Ammonite is similar in appearance to the ram-headed
deity’s horns. For a similar reason (along with a legend of prosperity), the
Blackfoot Tribe of North America knows Ammolite as the “Buffalo Stone”. |
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Legends & Lore |
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The
Roman historian Pliny the Elder regarded Ammolite as the holiest gemstone
because it was said to evoke prophetic dreams. |
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Just The Facts |
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Ammonites
were cephalopods (predatory marine mollusks) similar to the modern Squid,
Octopus and chambered Nautilus. Ammonites were able to swim, because of the
unique construction of their shell, which was divided into a series of air
chambers. The air in the chambers provided buoyancy for the animal to float;
like modern cephalopods, they moved through the water using jet propulsion. |
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Ammonite fossils are found on every continent
but it is those found in and around Alberta, Canada that display the most
vivid colors and are treasured as gems. Some show very intricate suture
patterns, which are created by the complex walls dividing the inside of
the shell. They are found in the upper Cretaceous Bearpaw formation, which
has been dated at approximately 71 million years old. |
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Ammolites
are found in various sizes and colors. Pricing is based on size, shape, number
of colors present, brightness of those colors and overall appearance. Each
Ammolite gem is unique in brilliance, color and pattern. The rarest and most
desirable show three or more colors and are graded AA. Ammolites displaying
one or more distinct colors or play of colors are graded A, while in B grades,
colors are less distinct or they may only show directional color. When used
in jewelry, Ammolites are sometimes set as Quartz or Spinel doublets (i.e.
gemstones consisting of two or more parts that have been artificially joined
together to give the impression of a single gemstone) for additional strength. |
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In
1908 a member of the National Geological Survey team found mineralized fossils
of Ammolite along the St. Mary's River in Alberta. It was not until 1981 that
enough high quality Ammolite was discovered to make mining commercially viable.
The International Commission of Colored Gemstones (CIBJO)officially recognized
Ammolite as a gemstone in 1981. |
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