Horsetail Inclusion: A Spectacular Phenomenon in Russian Demantoid Garnets

horsetail inclusion in demantoid from russia


Nature’s artistic brilliance has bestowed upon us an exquisite gemstone known as demantoid garnet, renowned for its radiant green hue and exceptional fire. Originating primarily from Russia’s Ural Mountains, demantoid garnets possess a rare and captivating feature—an inclusion pattern resembling delicate horsetail formations. This remarkable phenomenon has captivated gem enthusiasts and scientists alike, adding an enchanting element to the already highly coveted gemstone. In this article, we will delve into the unique characteristics of demantoid garnets and explore the mesmerizing horsetail inclusions that make them truly exceptional.

Russian Demantoid Horsetail Inclusion

Demantoid Garnet: A Gemstone of Radiance

Demantoid garnet is a variety of andradite garnet, characterized by its vibrant green color and high refractive index. Its name, derived from the Dutch word “demant,” meaning “diamond-like,” reflects its unparalleled brilliance and dispersion properties. First discovered in Russia’s Ural Mountains in the mid-19th century, demantoid garnet quickly gained popularity and became a favorite among jewelry connoisseurs worldwide.

Russian demantoid garnets are considered the most esteemed among gem enthusiasts due to their exceptional quality and the presence of mesmerizing horsetail inclusions. The Ural Mountains remain the main source of these exceptional gems. More about current Demantoid production we discussed with GIA here.

Horsetail Inclusions: Nature’s Masterpiece

The most extraordinary and captivating feature of Russian demantoid garnets is the presence of unique horsetail inclusions. These inclusions are delicate, branching formations that resemble the wispy tail of a horse, thus lending them their name. The horsetail inclusions are composed of bundles of needle-like mineral fibers, predominantly composed of asbestos minerals such as chrysotile.

Formation of Horsetail Inclusions

The formation of horsetail inclusions in demantoid garnets is a geological marvel that occurred millions of years ago. During the gemstone’s crystallization process, the presence of asbestos-rich fluids allowed the growth of these distinctive inclusions. The combination of specific chemical and environmental conditions, such as high temperature and pressure, created the perfect circumstances for the formation of these captivating horsetail patterns.

Capturing the Horsetail’s Beauty

The presence of horsetail inclusions enhances the allure and value of demantoid garnets. Gem cutters and lapidaries carefully analyze the rough gemstones to highlight these mesmerizing inclusions. Skilled artisans meticulously fashion the gemstones to maximize their brilliance while ensuring the horsetail inclusions are prominently showcased. The result is a remarkable gemstone that showcases the harmonious fusion of nature’s artistry and human craftsmanship.

Horsetail Inclusion in Demantoid Garnet

The Allure of Demantoid Garnets with Horsetail Inclusions

Demantoid garnets featuring horsetail inclusions have become highly sought-after collectibles due to their rarity and captivating aesthetics. The horsetail inclusions infuse these gemstones with an ethereal beauty, making each piece a unique work of art. Jewelry adorned with such gems stands out as a testament to the wearer’s discerning taste and appreciation for natural wonders.

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