Mineral/Mineraloid
Jade (likely Jadeite or Nephrite)
Jadeite (NaAlSi2O6) or Nephrite (Ca2(Mg,Fe)5Si8O22(OH)2)
Jade is an ornamental stone that is primarily known in two varieties: Jadeite and Nephrite. They appear very similar but are distinct minerals.
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Physical properties
Jade is an ornamental stone that is primarily known in two varieties: Jadeite and Nephrite. They appear very similar but are distinct minerals.
Formation & geological history
Formed under regional metamorphism in subduction zones (jadeite) or in serpentinized ultramafic rocks (nephrite).
Uses & applications
Decorative items, sculptures, jewelry, and tools (historically).
Geological facts
Both 'jade' minerals are tough due to their interlocking fibrous or granular crystal structures. Jadeite is generally rarer, harder, and comes in a wider range of colors, including emerald green, lavender, and black, while nephrite tends to be creamy white to dark green. The shade pictured is consistent with fine jadeite, often called 'Imperial Jade'.
Field identification & locations
Highly valued in many cultures, especially in East Asia, for its beauty, durability, and symbolic meaning (purity, protection, good luck). The term 'jade' is often used generically to refer to both jadeite and nephrite, though they are distinct mineral species.
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