gemstone

Tumbled green jade (likely serpentine or dyed quartz imitation)

Possibly nephrite jade, Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂; visual identification is uncertain

AI-generated identification · may be incorrect

Opaque, mottled green, polished and rounded with a waxy-to-greasy luster. If nephrite, hardness is about 6–6.5 Mohs and its crystals form tightly interlocking fibers; composition cannot be confirmed from the photo.

Identified October 6, 2026More gemstone →

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Physical properties

Formation & geological history

Nephrite forms through metamorphic alteration of magnesium-rich rocks, commonly in mountain-belt settings. Deposits range from ancient to geologically recent; the specimen’s source and age are unknown.

Uses & applications

Small polished pieces are used in jewelry, ornaments, and collecting; jade also has a long history of carving and ceremonial use.

Geological facts

“Jade” refers to two distinct minerals: nephrite and jadeite. Green serpentine and treated materials can resemble jade, so appearance alone is not diagnostic.

Field identification & locations

The smooth, rounded surface indicates tumbling, but the vivid color and cloudy texture do not establish jade identity. Common sources include China, Myanmar, Canada, and New Zealand; gemological testing is needed to distinguish jade from imitations.