Material Identity
Behind one short name sit two different minerals. Jadeite is a pyroxene (NaAlSi2O6) with a Mohs hardness of 6.5 to 7; nephrite is an amphibole material (Ca2(Mg,Fe)5Si8O22(OH)2) at Mohs 6 to 6.5, valued for exceptional toughness from its interlocking fibrous structure. Gemologists generally reserve the word jade for these two, with green omphacite admitted under certain conditions, although many other green stones have been sold under the name.
Visual Character
Jade ranges well beyond green: white, lavender, orange, yellow, gray, and black all occur. Green remains the most sought-after in both materials, and the finest jadeite approaches transparency with a vivid emerald tone. The GIA weighs jadeite value on color, transparency, and texture together, and texture is what the hand notices first: a fine, compact surface takes a luster that feels almost soapy, which is why a small, even-textured cabochon can outshine a larger piece with a dull polish.
Meaning and Cultural Context
Few stones carry as much accumulated cultural memory. In China, jade has been carved for millennia into ritual objects, ornaments, and symbols of virtue; in Mesoamerica, jadeite held a comparable place among Maya and Olmec cultures; in New Zealand, nephrite pounamu remains a treasured material of Māori tradition. Wearing jade today often continues this sense of continuity, a connection to family, heritage, or craft that spans generations.
Jewelry and Care
With hardness between 6 and 7 and remarkable toughness, jade stands up well to daily wear in bangles, rings, and pendants, though hard knocks can still crack a bangle and storage apart from harder gems protects the polish. Wash with mild soap, lukewarm water, and a soft cloth. Because jade on the market may be dyed, bleached, impregnated, or coated, harsh chemicals and ultrasonic cleaning are poor choices, and a treated piece may need gentler handling over time.
Choosing This Stone
The first thing to establish is which material a piece actually is: jadeite, nephrite, or a green stone merely wearing the name. The second is treatment, which the trade grades as A jade (untreated or wax-polished jadeite), B jade (acid-bleached and polymer-impregnated), and C jade (dyed). These grades shape both value and longevity, and a trustworthy seller states material and treatment plainly rather than letting the single word jade do all the work.