Global Gemology - Rare Gems & Jewels
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aMMOLITE

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High-quality ammolite doublet custom made 14K gold pendant
Multicolor ammolite pendant
Species:  Ammonite
​​Mohs Hardness:  3.5 to 4 out of 10
Color:  Most ammolite is green and red, with blue and violet ammolite being more rare.
RI:  1.520 to 1.680 (varies with mineral content)
Birefringence:  Usually 0.155
SR/DR/AGG:  AGG
Optic Character:  N/A
Spectrum:  Not diagnostic
Fluorescence:  Varies
SG:  Usually 2.70 (varies with mineral content)

ammolite Facts

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Amolite cabochon
Ammolite cabochon

Ammolite is a colorful, iridescent gem created by fossilized ammonite shells!

This beautiful organic gemstone is found in Southern Alberta, Canada.

Ammonites were squid-like creatures with beak-shaped jaws.  Ammonites became extinct approximately 66 million years ago, along with the dinosaurs!

Most ammolite is green and red, while blue and violet ammolite is more rare.

There are 2 different types of ammolites, in regards to their appearance:
Fractured Ammolite - Resembles stained glass.
Sheet Ammolite - An unbroken piece of ammolite where the colors are continuous.
  • HOME
  • ABOUT
  • SHOP
  • SERVICES
    • APPRAISALS
    • EXPERT WITNESS TESTIMONY
    • SELL YOUR JEWELRY
  • GEMOLOGY
    • GEM ENCYCLOPEDIA
    • THE ART OF GEMOLOGY
  • JEWELRY EDUCATION
    • DIAMOND FACTS
    • JEWELER DIRECTORY
    • JEWELRY PERIODS
    • POCKET WATCHES
    • NATIVE AMERICAN JEWELRY
  • GLOSSARY