Paraiba tourmaline gemstones are considered rare due to several factors:
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Limited Geographic Occurrence: The primary reason for the rarity of Paraiba tourmaline is its limited geographic occurrence. The original discovery of Paraiba tourmaline took place in the 1980s in the Brazilian state of Paraiba, hence the name. This specific type of tourmaline is also found in other regions of Brazil, as well as in Mozambique and Nigeria. However, even within these locations, the deposits are relatively small and localized.
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Unique Chemical Composition: Paraiba tourmaline is characterized by its unique chemical composition, which includes trace amounts of copper and other elements. It is the presence of copper that gives Paraiba tourmaline its distinctive neon-like blue and greenish-blue colors. The occurrence of such copper-bearing tourmalines is relatively rare, further contributing to the scarcity of Paraiba tourmaline.
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Exceptional Color and Quality: Paraiba tourmaline is highly prized for its exceptional color intensity and saturation. The vivid blue and greenish-blue hues of Paraiba tourmaline are unparalleled and cannot be easily replicated or imitated by other gemstones. Finding Paraiba tourmaline with the desired color intensity and quality is challenging, making high-quality specimens even rarer.
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Small Gemstone Size: Paraiba tourmaline is typically found in smaller sizes compared to other gemstones. Larger, high-quality Paraiba tourmalines are particularly scarce, further adding to their rarity and value. The combination of exceptional color, larger sizes, and top-notch clarity is exceptionally rare, making such specimens highly sought after by collectors.
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Increasing Demand: Over the years, the demand for Paraiba tourmaline has grown significantly due to its unique beauty and rarity. As more people have become aware of this gemstone's extraordinary qualities, the supply has struggled to keep up with the rising demand. This increasing demand and limited availability contribute to the overall rarity and elevated value of Paraiba tourmaline.
Due to its limited occurrence, unique coloration, and increasing popularity, Paraiba tourmaline is considered one of the most coveted and rare gemstones in the world. The combination of its geographical scarcity, distinctive copper content, exceptional color, and small gemstone sizes contribute to its reputation as a highly sought-after and valuable gemstone.