metamorphic

Jade (likely nephrite)

Nephrite jade: interlocking actinolite–tremolite amphibole, Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂; exact identification requires testing

AI-generated identification · may be incorrect

Light green, opaque to slightly translucent, greasy-to-waxy luster, and fibrous/interlocking texture; Mohs hardness about 6–6.5, tough with no obvious cleavage, and specific gravity about 2.9–3.1. The item appears polished and set in metal.

Identified August 8, 2026More metamorphic →

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At a glance

Common name: Jade (likely nephrite)
Scientific name: Nephrite jade: interlocking actinolite–tremolite amphibole, Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂; exact identification requires testing
Category: metamorphic
Identified: August 8, 2026
Method: Standard

AI Estimated Value

Approximately $15–$100 for a small commercial pendant; fine untreated jade may range from hundreds to many thousands of dollars.

Not an official valuation

AI estimate for general interest only — not an appraisal. Actual value depends on condition, provenance, and market demand. Verify with a professional before buying, selling, or insuring.

This identification was generated by AI and may contain errors. Verify important details before relying on them — and never use an AI result to judge whether a specimen is safe to handle. Read the full disclaimer

Physical properties

Formation & geological history

Forms through metamorphism and metasomatism of ultramafic or dolomitic rocks, commonly in serpentinite zones; deposits range from Paleozoic to recent geologic ages. A jadeite identification would instead indicate pyroxene jadeite, NaAlSi₂O₆, typically formed in high-pressure subduction zones.

Uses & applications

Used for carved ornaments, cabochons, beads, jewelry, tools, and cultural artifacts; value depends strongly on jade type, translucency, color, texture, treatment, and provenance.

Geological facts

Nephrite is exceptionally tough because of its felted amphibole fibers. Bright emerald-green “imperial jade” is usually jadeite, not nephrite, and laboratory testing is needed to distinguish them reliably.

Field identification & locations

Common sources include Myanmar, Guatemala, China, Canada, New Zealand, Russia, and Wyoming. Field clues include high toughness, waxy green appearance, and resistance to scratching by steel; dyeing, coatings, and imitations are common.