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| Ammolite is about 70 million year old. It was granted official gemstone status in 1981 by CIBJO International Commission of Colored Gemstones. The luminous qualities of ammolite rival black opals for fire and color. The ammolite used in our jewelry is a "triplet." The ammolite is on a black onyx base, it is coated with a spinel top. Spinel has a hardness of 8.5 (for comparision diamond has a hardness of 10). The spinel adds a smooth appearance to the fossil while protecting it from the elements. Ammolite (without spinel) has a hardness of 4.5. Opal, in comparison, has a hardness of 6. |
| Ammolite is graded according to color and brilliance. There are four grades of ammolite: AA: Highest grade displaying three or more brilliant sharp colors, also considered to be collection grade. Found most often in one of a kind designer pieces. A: One or more distinct colours or play of colours. A– Standard Grade: Colors are slightly less distinct and may show directional color. B: Faint, less distinct color. |
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| Information on this stone was gathered from several sources, including but not limited to the Gemological Institute of America. |
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| Ammolite (Gem Ammonite) Rarer than Diamond |
| **pictures enlarged for detail** |