Rock Identifier
Carved green jade pendant or ornament (Likely jadeite (NaAlSi₂O₆) or nephrite (Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂); image alone cannot distinguish them) — gemstone
gemstone

Carved green jade pendant or ornament

Likely jadeite (NaAlSi₂O₆) or nephrite (Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂); image alone cannot distinguish them

AI-generated identification · may be incorrect

Translucent dark-green carved stone with a polished, vitreous-to-waxy luster; jadeite and nephrite are both about 6–7 Mohs and have dense, interlocking crystal structures. The attached metal fitting is not geological material.

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Physical properties

Translucent dark-green carved stone with a polished, vitreous-to-waxy luster; jadeite and nephrite are both about 6–7 Mohs and have dense, interlocking crystal structures. The attached metal fitting is not geological material.

Formation & geological history

Jade forms through metamorphic processes, commonly in high-pressure, fluid-rich settings; jadeite-bearing rocks are often associated with subduction zones, while nephrite forms by metamorphic alteration. The specimen’s age and source cannot be determined from the image.

Uses & applications

Carved for jewelry or ornament; jade is also used for beads, sculptures, and historically, tools.

Geological facts

“Jade” refers to two distinct minerals, jadeite and nephrite, which can look similar but differ in composition and structure.

Field identification & locations

Look for unusually tough, compact stone and a waxy polish; reliable identification requires gemological testing, as green glass and other stones can imitate jade. Jadeite is notably found in Myanmar, while nephrite sources include China, Canada, and New Zealand.