Nephrite Jade Rough / River Stone
Minerals & Gemstone Rough

Nephrite Jade Rough / River Stone

This item is a natural piece of gemstone rough, which appears to be nephrite jade, commonly known as a river cobble or 'slick'. The physical characteristics show a size roughly comparable to a large coin or small egg, held between the fingers for scale. The color palette is a range of deep olive green to olive-brown. The specimen exhibits a distinct contrast between its weathered outer cortex and a fresh conchoidal fracture. The outer surface is matte and 'rind-like' with various percussion marks, while the fractured face reveals a waxy luster and translucency typical of nephrite. Notable features include numerous surface scratches and small white linear inclusions or 'hairs' running through the stone. The condition is raw; it is unworked except for the large chip missing from the right side, which provides a 'window' into the stone's internal quality. There are no maker's marks or signatures as this is a geologic specimen. Its age is geologic (millions of years), and its quality appears moderate, showing characteristic toughness and fibrous structure. The visible interior shows a dense, fine-grained texture with some internal fracturing, which would impact its utility for carving or lapidary work.

Estimated Value

$45 - $85

Basic Information

Category

Minerals & Gemstone Rough

Appraised On

March 23, 2026

Estimated Value

$45 - $85

Item Description

This item is a natural piece of gemstone rough, which appears to be nephrite jade, commonly known as a river cobble or 'slick'. The physical characteristics show a size roughly comparable to a large coin or small egg, held between the fingers for scale. The color palette is a range of deep olive green to olive-brown. The specimen exhibits a distinct contrast between its weathered outer cortex and a fresh conchoidal fracture. The outer surface is matte and 'rind-like' with various percussion marks, while the fractured face reveals a waxy luster and translucency typical of nephrite. Notable features include numerous surface scratches and small white linear inclusions or 'hairs' running through the stone. The condition is raw; it is unworked except for the large chip missing from the right side, which provides a 'window' into the stone's internal quality. There are no maker's marks or signatures as this is a geologic specimen. Its age is geologic (millions of years), and its quality appears moderate, showing characteristic toughness and fibrous structure. The visible interior shows a dense, fine-grained texture with some internal fracturing, which would impact its utility for carving or lapidary work.

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