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Earth Treasures: Demantoid

By Chisom Ibemere

Demantoid is a green gemstone that belongs to the garnet family and one of the rarest varieties of garnet. It was discovered in 1854 in the Ural Mountains of Russia and was popular for its unique color and brilliance. The name “demantoid” was gotten from the French word “demant” which means diamond, due to its diamond-like brilliance.

The fundamental source of demantoid is Russia, in the Ural Mountains and the Kola Peninsula. It has also gained entry however, in smaller amount in Italy, Namibia, Madagascar, and Iran. It is often found in association with other minerals like serpentine, diopside, and chromite.

Demantoid is a unique green gemstone that ranges in color from yellow-green to green, with a distinct yellow or brownish tint in some stones. It has a Mohs hardness of 6.5-7.5, making it durable enough for use in jewelry. It belongs to the garnet group of minerals. It has a specific gravity of 3.8-4.2 and a refractive index of 1.88-1.89, giving it a high level of brilliance and fire.

Basically, demantoid is used as a gemstone in jewelry, particularly in rings, earrings, and pendants. It has a vibrant green color and high level of brilliance making it a great choice for those looking for a unique and eye – catching gemstone. It can also be used in ornamental objects such as sculptures and carvings.

Demantoid is a relatively rare gemstone, which is highly sought after and valuable. Its value is dependent on its color, clarity, and size. High quality and larger sizes are highly prized. In recent years, demand for demantoid has increased as consumers look for unique and rare gemstones to add to their collections.

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