Jade Cobble Appraisal

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Unpolished Raw Nephrite Jade River Cobble

This item is a large, natural river-worn specimen of raw nephrite jade. It exhibits a rounded, irregular cobble shape typical of stones that have been tumbled in a riverbed over geological time. The color is a muted celadon-green to sage-grey with significant patches of brown and tan 'rind' or oxidation on the exterior surface. Physically, the rock shows a waxy to greasy luster in areas where the internal structure is exposed, which is a key characteristic of nephrite. It measures approximately 4 to 5 inches across, filling a human palm. The surface is heavily textured with natural pits, indentations, and internal fracture lines. There is a prominent jagged fracture at the top revealing white, crystalline inclusions or possibly quartz veining. Visible condition issues include deep surface impacts and weathering consistent with its natural state; it is not a finished lapidary piece. The stone lacks any maker's marks or signatures as it is a raw geological specimen. The craftsmanship is entirely natural, shaped by hydraulic erosion rather than human tools. The quality appears to be 'lapidary grade,' meaning it could potentially be cut and polished for jewelry or ornamental carving, though the extent of internal fractures would dictate its ultimate utility.

Estimated Value

$45 - $85

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