Water Tumbled Stone Appraisal

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Banded River Cobble

This item is an oval-shaped, naturally water-worn cobble, measuring approximately 2 to 3 inches in length based on its scale relative to the palm of a human hand. The specimen displays a tan to ocher base color with distinct sedimentary banding or stratification appearing as darker, brownish-grey horizontal layers across its body. These parallel bands suggest a sedimentary origin, likely a siltstone or fine-grained sandstone. The surface texture appears smooth and matte, indicative of long-term alluvial abrasion or 'river tumbling' which has rounded all sharp edges into a comfortable, ergonomic form. There are no visible maker's marks, signatures, or human alterations, identifying it as a naturally occurring geologic object rather than a manufactured tool or artifact. The condition is excellent for a natural specimen, showing no significant fractures, chips, or modern tool marks, though it possesses a natural, earthy patina and fine surface pitting consistent with geological aging. While it mimics the shape of certain lithic tools, such as a grinding stone or 'mano,' the lack of specific wear patterns on the flat faces suggests it is a natural river rock. Its age is geological, likely spanning millions of years in formation, though its current polished state is the result of more recent environmental wear.

Estimated Value

$5.00 - $15.00

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