Jade (Nephrite rock) identification and geology

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Sources, scope & corrections

These authoritative resources support category-level nomenclature, terminology, identification methods, and safety. When a specimen-specific safety warning appears, the public-health source listed here directly supports that precaution. They are not line-by-line citations for every other property on this entry, and natural specimens vary.

Editorial owner

GeoMiner

Last updated

2026-03-30T14:38:56.753321+00:00

Review status

Published; not independently peer-reviewed

• Rocks — U.S. National Park Service. Authoritative overview of rock groups, the rock cycle, and geologic processes.
• Can you identify my rock or mineral? — U.S. Geological Survey. Identification limitations and routes to in-person professional verification.

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Common questions

What is Jade Nephrite rock?

Tough metamorphic rock composed of interlocking actinolite-tremolite fibers. One of two minerals called jade.

How can you identify Jade Nephrite rock?

Compare several properties rather than relying on colour alone. This entry records rock type: Metamorphic; texture: Massive, extremely tough; grain size: Fine interlocking fibers; common minerals: Actinolite, Tremolite. Confirm an important identification with additional field tests or qualified laboratory work.

How does Jade Nephrite rock form?

Forms from metasomatic alteration of serpentinite at contacts with siliceous rocks under moderate metamorphic conditions.

Where is Jade Nephrite rock commonly found?

British Columbia, New Zealand pounamu , China, Russia; found in serpentinite contact zones.

What is Jade Nephrite rock commonly confused with?

Jade Nephrite rock may be confused with Jadeite, Serpentinite, Aventurine. Compare multiple diagnostic properties because colour and surface appearance can overlap.