AI Appraisal Estimate

This is a lithic artifact consistent with a Yadkin triangular projectile point, measuring approximately 1 inch by 1 inch. The item is manufactured from a grainy, light-tan to buff-colored quartzite, a material known for its durability but difficulty in pressure flaking, which contributes to the somewhat rugged and translucent crystalline surface texture visible in the image. Its morphology is characterized by a broad, equilateral to isosceles triangular shape with slightly convex to straight lateral edges. The base is notably concave, a diagnostic feature of the Yadkin typology, which typically dates to the Middle to Late Woodland period (approx. 500 BC to 500 AD). The craftsmanship displays percussion flaking with some secondary retouch along the edges, though the coarse nature of the quartzite obscures fine detail. The condition appears stable with expected age-related weathering and oxidation of the stone surface; there are no major modern fractures or fresh chips, suggesting an authentic aged patina. The find location in Guthrie, Oklahoma, provides significant geographic context for assessing regional variations in lithic material usage.

Based on my visual examination of this Yadkin Triangular projectile point, the artifact exhibits characteristics consistent with specimens from the Middle to Late Woodland period. The use of grainy, buff-colored quartzite is typical for regional lithic industries, where the material's toughness often results in the rugged flaking pattern observed here. The concave base and equilateral proportions are diagnostic markers of the Yadkin type. The surface patina and lack of modern crush marks or 'glassy' fresh scars suggest authenticity. However, the value of such lithics is heavily influenced by provenance. While found in Guthrie, Oklahoma, the Yadkin typology is traditionally associated with the Southeastern United States; this suggests either a broad regional variant or an ancient trade piece, which adds minor scientific interest. Market demand for quartzite points is generally lower than for high-grade chert or flint due to the less defined aesthetic of the knapping. Comparable sales for average-grade Yadkin points range from $25 to $75. Limitations of this appraisal: A definitive determination of authenticity cannot be made through photography alone. Microscopic analysis of use-wear and hydration rinds is required to rule out modern replicas. Furthermore, clear documentation of the find-site and a chain of custody would be essential to elevate this piece to a museum-quality valuation. For a full authentication, I recommend an in-person inspection by a specialist in Southern Plains and Southeastern lithics.