Opal Rough Stone Appraisal

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Natural Australian White Opal Rough Gemstone

This specimen is a natural, irregularly shaped piece of rough white opal, likely of Australian origin given the characteristic milky white body tone. The gemstone exhibits a vibrant and diverse 'play-of-color,' featuring broad flashes of neon green, electric orange, and hints of violet-blue scattered across its top surface. The color pattern appears to follow a mosaic or floral distribution depending on the angle of light. Physically, the item is an unpolished, freeform nugget with blunt, slightly rounded edges, suggesting it may have been tumbled or roughly shaped but not yet faceted or cabochon-cut. The surface texture is somewhat matte with several visible pits and natural indentations consistent with raw geological formation. No visible cracks or major 'crazing' (fine surface fractures) are immediately apparent in this lighting, though the stone does exhibit some surface wear and typical host-rock impurities near the edges. The opacity is semi-translucent, allowing light to permeate the body and activate the fire within. Its value would be determined by the finished yield after professional cutting and the intensity of the spectral colors during rotation.

Estimated Value

$450 - $650

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