Stone Projectile Point (Spear Head or Knife Blade)
Inapplicable (Archaeological artifact, likely cultural tradition cf. Archaic or Paleo-Indian) • The provided image does not contain a fossil; it depicts an archaeological artifact. It is a lithic tool (anthropogenic), likely a spear head or large knife.
Geological Period
Holocene / Late Quaternary (Human Prehistory)
Estimated Age
Typically 0.002 to 0.012 million years (2,000 to 12,000 years ago)
Preservation Type
Lithic preservation; stone material is extremely durable and has been preserved through burial in sediment with minor surface patination and mineral staining.
Condition Assessment
Good to Very Good. The tip and edges are largely intact, though there is significant surface mineral build-up and some minor edge nibbling (damage).
Taxonomic Classification
Non-biological; Anthrosols (Anthropogenic material)
Morphological Description
Lanceolate to triangular shape with a notched base for hafting. Shows invasive bifacial flaking and pressure flaking along the edges to create a serrated cutting surface. The tip is acute and slightly weathered.
Rock Matrix
The item is made from Chert or Flint, a microcrystalline sedimentary rock. There is no surrounding matrix, but the surface shows calcium/carbonate deposits (white spotting) suggesting burial in alkaline soil.
Formation & Location
Common in alluvium and topsoil across the Americas and Eurasia. Specifically resembles North American point types like the Kirk Corner Notched or similar Archaic period styles.
Size & Dimensions
Approximately 12-15 cm in length based on scale; this is considered large/extra-large for this type of projectile point.
Value & Rarity
Estimated Market Value
$150.00 - $450.00 USD (Varies significantly by provenance and specific typology)
Auction Estimate
$200.00 - $500.00 USD
Rarity Assessment
Uncommon; while points are found often, large, intact examples with distinct mineral patination are sought after by collectors.
Scientific Significance
High archaeological significance as an indicator of ancient human hunting technology, migration patterns, and lithic procurement strategies.
Preparation Recommendations
Keep dry and stable. Avoid harsh chemical cleaners that may remove the original patina or mineral deposits which prove authenticity.
Notable Features
Heavy mineral encrustation ('desert varnish' or calcium spots) and distinct corner-notching; the dark color may indicate high-quality chert or heat-treated flint.