Rock Identifier
Carved pale green jade-like pendant (Likely nephrite jade (tremolite–actinolite amphibole); possibly serpentine or treated aventurine) — gemstone
gemstone

Carved pale green jade-like pendant

Likely nephrite jade (tremolite–actinolite amphibole); possibly serpentine or treated aventurine

AI-generated identification · may be incorrect

Translucent pale green, waxy-to-vitreous luster, massive structure, and no visible cleavage; nephrite hardness is about 6–6.5 Mohs and specific gravity 2.9–3.1. The carving and metal findings are human-processed, but the pendant material appears geological.

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Physical properties

Translucent pale green, waxy-to-vitreous luster, massive structure, and no visible cleavage; nephrite hardness is about 6–6.5 Mohs and specific gravity 2.9–3.1. The carving and metal findings are human-processed, but the pendant material appears geological.

Formation & geological history

Nephrite forms through metamorphism and metasomatic alteration of ultramafic rocks, commonly in convergent mountain belts; major deposits are geologically Paleozoic to younger. Exact identification requires refractive index, density, and microscopic or spectroscopic testing.

Uses & applications

Used for carvings, beads, ornaments, and jewelry; jade quality depends on color, translucency, texture, and absence of fractures. Serpentine substitutes are considerably less valuable.

Geological facts

The smooth, compact texture and muted green color are consistent with nephrite, but photographs cannot distinguish it reliably from serpentine, quartzite, or dyed stone.

Field identification & locations

Common sources include China, British Columbia, New Zealand, Siberia, and Wyoming. Check for uniform color, very fine texture, and high toughness; laboratory testing is needed for confirmation.