Jadeite

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Jadeite-stab

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Purple jade (metaphonolite) Bursa Province, northwestern Turkey

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MandalayJadeInspection

Hache 222.1 Global fond

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Maya. Plaque, 600-900 C.E., L56.10.2

Jadeite is a pyroxene mineral with the chemical formula NaAlSi₂O₆. It is one of the two minerals, the other being nephrite, that are commonly known as jade. Jadeite is the rarer and more valuable of the two varieties of jade, and it is particularly prized in Chinese and Mesoamerican cultures. Its colors vary, including green, white, pink, red, black, and blue, with the emerald-green variety known as "Imperial Jade" being the most highly valued.

Properties and Formation

Jadeite forms in metamorphic rocks under high pressure and relatively low temperature conditions. It is primarily composed of sodium and aluminium in a silicate matrix, which gives it a dense, compact structure and contributes to its hardness. On the Mohs scale of mineral hardness, jadeite ranks between 6.0 and 7.0, making it exceptionally tough and resistant to breakage.

The mineral is often found in or near fault lines where oceanic crust is subducted under continental crust, facilitating the unique conditions necessary for its formation. Major deposits of jadeite have been found in Myanmar (Burma), Guatemala, Japan, and California, USA.

Cultural Significance

Jadeite has been used for tools, ornaments, and ritual objects for thousands of years. In China, jadeite has been particularly esteemed, symbolizing purity and moral integrity. It is often carved into intricate shapes and has been used in traditional Chinese medicine. The Mayans, Aztecs, and Olmecs of Mesoamerica also valued jadeite highly, using it for ceremonial purposes and as a medium of exchange.

Jadeite in the Market

Due to its rarity and desirability, jadeite can command high prices in the gemstone market. The value of jadeite is determined by its color, transparency, texture, and cut. Imperial Jade, characterized by its vibrant green color and high degree of transparency, is the most sought-after variety. The market for jadeite is particularly strong in Asia, with Hong Kong being a major trading hub.

Care and Maintenance

Jadeite is a durable mineral, but it requires care to maintain its luster and prevent damage. It should be protected from sharp impacts and extreme temperature changes. Cleaning should be done using mild soap and water, avoiding harsh chemicals and ultrasonic cleaners.

Conclusion

Jadeite's combination of beauty, durability, and cultural significance has made it a cherished gemstone throughout history. Its rarity and the skill required to carve it into various forms have only added to its mystique and value. As a symbol of purity, moral integrity, and power, jadeite continues to be a highly prized possession in many cultures around the world.

Jadeite Resources
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