AMMOLITE Color Changing 19x14mm 11.2Cts w/ Appraisal of 4 Rarest Gem On Earth

Description

350811417020 V
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AMMOLITE Color Changing 19x14mm 11.2Cts w/ Appraisal of 4
Rarest Gem On Earth
Comes with the laminated CGJL Certificate Of Evaluation seen ( 2013 )
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Ammolite is an
opal
-like
organic gemstone
found primarily along the eastern slopes of the
Rocky Mountains
of
North America
. It is made of the
fossilized
shells of
ammonites
, which in turn are composed primarily of
aragonite
, the same
mineral
contained in
nacre
, with a microstructure inherited from the shell. It is one of few
biogenic
gemstones; others include
amber
and
pearl
.
1
In 1981, ammolite was given official gemstone status by the
World Jewellery Confederation
(CIBJO), the same year commercial mining of ammolite began. It was designated the official gemstone of the
City of Lethbridge
, Alberta in 2007.
[2]
[3]
Ammolite is also known as
aapoak
(
Kainah
for "small, crawling stone"), gem ammonite, calcentine, and Korite. The latter is a trade name given to the gemstone by the Alberta-based mining company
Korite
. Marcel Charbonneau and his business partner Mike Berisoff were the first to create commercial
doublets
of the gem in 1967. They went on to form Ammolite Minerals Ltd.
Ammolite - Wikipedia
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