Ammolite

Ammolite is a rare and valuable 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 that makes up nacreous pearls. Often found in triplet form.

 

Location -  USA/Canada

 

Group -  Aragonite

R.I. 1.52 - 1.68

Hardness -  4.5 - 5.5


 

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