Rock Identifier
Jade (likely jadeite) pearl earring (Jadeite, NaAlSi₂O₆; the image alone cannot distinguish jadeite from nephrite) — gemstone
gemstone

Jade (likely jadeite) pearl earring

Jadeite, NaAlSi₂O₆; the image alone cannot distinguish jadeite from nephrite

AI-generated identification · may be incorrect

A polished, pale green spherical bead with a waxy-to-vitreous luster. Jadeite has Mohs hardness 6.5–7 and a monoclinic crystal structure; nephrite, an alternative, is a tough interlocking amphibole aggregate with hardness 6–6.5. The gold-colored setting and backing are not geological material.

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Physical properties

A polished, pale green spherical bead with a waxy-to-vitreous luster. Jadeite has Mohs hardness 6.5–7 and a monoclinic crystal structure; nephrite, an alternative, is a tough interlocking amphibole aggregate with hardness 6–6.5. The gold-colored setting and backing are not geological material.

Formation & geological history

Jade forms during high-pressure metamorphism and fluid alteration, commonly in subduction-zone rocks. Jadeite deposits are notably associated with Myanmar; nephrite occurs in many regions, including China, Canada, and New Zealand. Geological ages depend on the deposit.

Uses & applications

Jade is carved for jewelry and ornaments; this specimen is set as an earring. Jade quality and value depend on identity, color, translucency, treatment, and workmanship.

Geological facts

“Jade” refers to two distinct minerals: jadeite and nephrite. Visual inspection of a small mounted bead is not enough to determine which one it is.

Field identification & locations

The rounded polished green bead is consistent with jade, but glass and other imitations can look similar; identification may require gemological testing. Avoid scratch tests that could damage the bead.