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Ammonites survived until the end of the Cretaceous period in a sea that covered what is now Alberta and Montana. These annomites were transformed into the rare gem known as Ammolite.
The chemical composition of Ammolite is Calcium Carbonate (CaCO3) Argonite, similar to pearl.
Ammolite's natural hardness is 4.5, however, it's often well protected by a clear spinel or quartz crystal cap with a hardness of 8.
Ammolite is the last precious gem to be discovered this century. Ammolite was granted official gemstone status in 1981 by the CIBJO (International Commission of Colored Gemstones).
The Korite Ammonite mine, located in Alberta, Canada, just north of the Montana border, is the only commercial Ammonite mine in the world. Korite's eco-friendly Ammolite mine produces 94% of the world's supply of this incredibly rare gem.
According to a thesis published in "Gems & Gemology" by the Gemological Institute of America (G.I.A.), top grade Ammolite could be exhausted within the next 15-20 years.
Ammonite is even more rare than Tanzanite, having increased 250% in value over the past decade, so beautiful Ammolite will become a treasured family heirloom.
The measurement of these ammonite is approx.: 18-27mm x 14-23mm
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