The Fascinating Origins and Unique Properties of Ammolite as a Gemstone

Ammolite is one of the rarest and most captivating gemstones in the world. Its vibrant colors and unique formation process make it a prized possession for collectors and jewelry lovers alike. Unlike traditional gemstones formed deep within the earth, ammolite has an extraordinary origin story that connects it to ancient marine life. This post explores the origins of ammolite, its distinct properties, and why it stands out in the world of gemstones.

Dragon scale ammolite rough

The Ancient Origins of Ammolite

Ammolite forms from the fossilized shells of ammonites, which were nautiloid mollusks that lived over 70 million years ago during the Late Cretaceous period. These creatures thrived in the oceans until a mass extinction event wiped them out along with the dinosaurs. The ammonite shells settled on the seabed and, over millions of years, underwent a unique fossilization process that created their iridescent layers.

The sole deposits of ammolite are found in the Bearpaw Formation in Alberta, Canada. This region’s sedimentary rock layers created the perfect conditions for the preservation of ammonite shells with their nacreous (mother-of-pearl) layers intact. The fossilized shells transformed into ammolite, a gemstone with a shimmering play of colors ranging from reds and greens to blues and purples.

What Makes Ammolite Unique?

Ammolite’s most striking feature is its iridescence, caused by the microstructure of the fossilized shell layers. These layers reflect light in different ways, producing a rainbow-like effect that changes with the viewing angle. This optical phenomenon is similar to the effect seen in opals or the inside of abalone shells, but is MUCH rarer in nature.

Here are some key properties that make ammolite stand out:

• Color range: Ammolite displays a wide spectrum of colors, with red and green being the most common and valuable. Blue and violet hues are far more rare.

• Softness: Compared to other gemstones, ammolite is relatively soft, with a Mohs hardness of about 3.5 to 4. This means it requires careful handling and protective settings in jewelry.

• Organic origin: Unlike minerals formed through geological processes, ammolite is an organic gemstone derived from ancient life, giving it a unique story and appeal.

• Limited sources: The rarity of ammolite deposits, restricted to a small area in Canada, adds to its exclusivity.

  
  

How Ammolite is Used in Jewelry

Because of its softness, ammolite is often treated or stabilized before being used in jewelry. Common treatments include applying a clear resin or backing the gemstone with a harder material to protect it from damage. Despite these precautions, ammolite jewelry requires gentle care to maintain its brilliance.

Ammolite is popular in various types of jewelry, including:

• Pendants and necklaces: Large ammolite pieces make stunning centerpieces.

• Rings: Often set with protective bezels to shield the stone.

• Earrings and bracelets: Smaller ammolite fragments add colorful accents.

  
  

Collectors value ammolite for its natural beauty and the story behind each piece. Some pieces even contain visible ammonite fossil patterns beneath the iridescent surface, adding to their uniqueness.

Ammolite pendant showcasing bright colors

Caring for Ammolite Jewelry

Due to its organic nature and softness, ammolite requires special care to keep it looking its best. Here are some practical tips:

• Avoid exposure to harsh chemicals, including household cleaners and perfumes.

• Store ammolite jewelry separately from harder gemstones to prevent scratches.

• Clean gently with a soft, damp cloth; avoid ultrasonic cleaners or steam.

• Remove ammolite rings or bracelets before engaging in activities that could cause impact or abrasion.

  
  

Following these guidelines helps preserve the gemstone’s vibrant colors and delicate structure.

Whole ammolite showcasing red irridescence

Why Ammolite Deserves More Attention

Ammolite remains less known than other gemstones like diamonds or sapphires, but its rarity and unique origin make it a fascinating alternative for those seeking something special. Its connection to prehistoric life, combined with its vibrant colors, offers a tangible link to Earth’s distant past.

For anyone interested in geology, paleontology, or unique jewelry, ammolite provides a perfect blend of science and art. Its limited supply and delicate nature mean that owning ammolite is a privilege, and caring for it ensures its beauty lasts for generations.